 METHOD FOR COMPLETING A DIGITAL DENTAL CHART WITH DENTAL CONDITION INFORMATION FOR A PATIENT'S T
专利摘要:
derivation of tooth condition information for filling digital dental charts. The present invention relates to digital methods and tools for deriving tooth condition information for a patient's teeth, for filling in a digital dental chart with the derived tooth condition information, and for generating a record electronic data containing such information. 公开号:BR112018011227B1 申请号:R112018011227-5 申请日:2016-12-05 公开日:2021-07-20 发明作者:Mike van der Poel；Rune Fisker；Karl-Josef Hollenbeck 申请人:3Shape A/S； IPC主号:
专利说明:
Technical Field [0001] The present invention generally relates to methods, systems, computer program products and digital environments for deriving tooth condition information for a patient's teeth and for filling dental charts with the condition information of the tooth. More particularly, the invention relates to methods, systems, computer program products and digital environments where individual teeth are identified from a digital 3D representation of the patient's teeth and the derived tooth condition information is correlated with the teeth. individual. Background [0002] Dental practice management systems often use dental charts to store information regarding the patient's dental situation. Such dental charts are known as an efficient tool for visualizing information regarding the condition of a patient's teeth. [0003] Standard dental charts often show regions that represent the surfaces of individual teeth normally found in a patient's mouth. Different colors, geometric figures or other visual representations are used to visualize, for example, caries, dental restoration work, root problems, etc. on the dental chart. [0004] Digital dental charts are also known, for example, from US 8,416,984 in which a method for generating a digital dental chart from a scan of a patient's teeth and filling in the digital dental chart generated with tooth condition information, are described. [0005] In the prior art, tooth condition information derived from systems is manually annotated/mapped/transferred to the standardized/schematic representation of the patient's teeth used in dental practice management systems. This is time-consuming and poses risks of human error, for example, the information being annotated on the wrong part of the tooth or even on the wrong tooth. [0006] It lacks to provide a digital method and tools to derive tooth condition information for a patient's teeth and to populate a digital dental chart with such information that has fewer manual steps and, accordingly, has less chance of human error . Digital tools can, for example, be a computer system, a computer program product or a digital environment. summary [0007] A method for deriving tooth condition information for a patient's teeth is described, where the method comprises: - obtaining a 3D digital representation of the patient's teeth; - the identification of individual teeth in the 3D digital representation; - the segmentation of individual teeth from the digital 3D representation; - obtaining diagnostic data for one or more of the teeth; - deriving tooth condition information from diagnostic data; and - the correlation of the derived tooth condition information with the individual teeth. [0008] The segmentation and identification of teeth in the digital 3D representation ensures that the parts of the digital 3D representation that refer to the patient's individual teeth are known. The arrangement of the individual teeth in the 3D digital representation is therefore also known. When the spatial correlation between the diagnostic data and the digital 3D representation is also known, the segmentation and identification of teeth in the digital 3D representation ensure that the diagnostic data can be correlated with individual teeth. That is, it can be determined for which tooth the diagnostic data is written. The spatial correlation between diagnostic data and the digital 3D representation is known, for example, when the diagnostic data is comprised in the digital 3D representation or when the spatial correlation is determined by aligning parts of the diagnostic data with corresponding parts of the representation 3D digital. When the diagnostic data is spatially correlated with the digital 3D representation, the spatial correlation between the individual teeth of the digital 3D representation and the tooth condition information derived from the diagnostic data will often also be known. [0009] Accordingly, the segmentation and identification of teeth ensure that the derived tooth information can be linked to the patient's individual teeth, that is, it can be determined for which tooth a given tooth condition information is derived. [00010] In some embodiments, the correlation of the derived tooth information with the identified and segmented teeth comprises determining the location of the tooth condition in the tooth. The tooth condition information can then be mapped to the correct position in the region of the dental chart. [00011] As explained above, tooth condition information can be viewed on a digital dental chart. Accordingly, a method for filling a digital dental chart with tooth condition information is also described here, where the method comprises: - deriving tooth condition information for one or more of the teeth by using the method, system , computer program product and/or digital environment, according to any of the modalities; - obtaining a digital dental chart comprising regions that represent the surfaces of the patient's teeth; - the correlation of individual teeth with the corresponding regions of the digital dental chart; and - adding a representation of the derived tooth condition information to the corresponding region or regions of the digital dental chart. [00012] That is, the method, the computer program product, the digital environment, and the system can be configured to populate a digital dental chart with tooth condition information for a patient's individual teeth. [00013] A standardized digital dental chart often has regions that represent the surfaces of individual teeth normally found in a patient's mouth. In such graphics there is usually a specific region for each specific tooth surface. The segmentation and identification of individual teeth in a digital 3D representation ensures that these tooth parts from the 3D digital representation can be connected to corresponding regions of the digital dental chart. [00014] Knowledge of the spatial correlation between the 3D digital representation and the diagnostic data ensures that it is known to which tooth the derived tooth condition information refers. The representation of the derived tooth condition information can thus be added to the correct region of the dental chart that represents the tooth surface for which the tooth condition information was derived. [00015] When the derived tooth condition information is added to a digital dental chart, the digital dental chart expresses the current condition of at least one tooth with respect to at least one dental condition, such as the presence of, for example , cavities, cracks on the tooth surface or dental restorations. [00016] In some cases, the digital dental chart is populated and viewed in a dental practice management system. Also described here is a method of generating an electronic data record configured for use in a dental practice management system, where the electronic data record comprises tooth condition information for a patient's individual teeth, where the method comprises: - deriving tooth condition information for one or more of the teeth by using the method, system, computer program product and/or digital environment, in accordance with any one of the modalities; and - storing tooth condition information for the teeth identified in the electronic data record. [00017] A method is described, comprising: - obtaining a 3D digital representation of a patient's teeth; - obtaining diagnostic data for one or more of the teeth; - identification of individual teeth from the digital 3D representation; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of the derived tooth information with the identified individual teeth. [00018] A digital environment configured to assist an operator in carrying out the steps of the described method is described. [00019] A computer program product comprising computer readable instructions that when executed by an electronic data processing device provides a digital environment for carrying out the steps of the described method is described. [00020] A system comprising: - an electronic data processing device; and - a non-transient computer readable medium encoded with the described computer program product. [00021] In some embodiments, the method, computer program product, digital environment, or system serves to derive tooth condition information for a patient's individual teeth. [00022] In some embodiments, the method, computer program product, digital environment, or system serves to populate a digital dental chart with tooth condition information for a patient's individual teeth. The method then comprises a step of filling in the digital dental chart with the derived tooth condition information. [00023] In some embodiments, the method, computer program product, digital environment, or system serves to generate an electronic data record configured for use in a dental practice management system, where the electronic data record comprises tooth condition information for a patient's individual teeth. The method then comprises storing the derived tooth condition information for the teeth identified in the electronic data record. [00024] In some modalities, the method comprises the segmentation of individual teeth from the digital 3D representation. [00025] The segmentation and identification of individual teeth in a digital 3D representation ensures that the teeth parts of the digital 3D representation can be connected to corresponding regions of the digital dental chart. This ensures a more efficient and faster procedure that is less prone to human error. [00026] A digital environment is described, comprising: - a digital upload tool to upload a digital 3D representation of the patient's teeth and diagnostic data for one or more of the teeth in the digital environment; - a digital workspace adapted to visualize the digital 3D representation and/or diagnostic data; - a digital identification tool to identify the individual teeth of the 3D digital representation; - a digital derivation tool for deriving tooth condition information from diagnostic data; and - a digital correlation tool to correlate the derived tooth information with the identified individual teeth. [00027] In some modalities, the digital environment comprises a digital segmentation tool to segment individual teeth from the digital 3D representation. [00028] In some embodiments, the digital environment comprises a digital filling tool to fill a digital dental chart with information about the derived tooth condition. [00029] A digital environment comprising a digital workspace is described, where the digital environment is configured to: - obtain a digital 3D representation of the patient's teeth and display the digital 3D representation in the digital workspace; - obtain diagnostic data for one or more of the teeth; and - assisting an operator in carrying out the steps of a method comprising: - identifying individual teeth in the 3D digital representation; the segmentation of individual teeth from the digital 3D representation; deriving information about the condition of the tooth from the diagnostic data; and the correlation of derived tooth information with individual teeth. [00030] A user interface configured to derive tooth condition information for a patient's teeth is described, where the user interface is configured to: - obtain a 3D digital representation of the patient's teeth; - the identification of individual teeth in the 3D digital representation; - the segmentation of individual teeth from the digital 3D representation; - obtaining diagnostic data for one or more of the teeth; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of the derived tooth information with the individual teeth. [00031] A system for deriving tooth condition information for a patient's teeth is described, the system comprising: - an electronic data processing device; and - a non-transient computer readable medium encoded with a computer program product comprising computer readable instructions which when executed by the electronic data processing device provides a digital environment for deriving tooth condition information for the teeth by a method comprising: i. obtaining a 3D digital representation of the patient's teeth; ii. obtaining diagnostic data for one or more of the teeth; iii. identification of individual teeth in 3D digital representation; iv. segmentation of individual teeth from digital 3D representation; v. deriving tooth condition information from diagnostic data; and vi. correlation of derived tooth information with individual teeth. [00032] A user interface configured to populate a digital dental chart with information about the tooth condition for a patient's teeth is described, where the user interface is configured to: - obtain a digital 3D representation of the patient's teeth ; - identify individual teeth in 3D digital representation; - segment individual teeth from the digital 3D representation; - obtain diagnostic data for one or more of the teeth; - derive information about the condition of the tooth from the diagnostic data; - correlate the derived tooth information with the individual teeth; - obtain a digital dental chart comprising regions representing tooth surfaces; - correlate the individual teeth with the corresponding regions of the digital dental chart; and - add a representation of the derived tooth condition information for the corresponding regions of the digital dental chart. [00033] Digital 3D representation comprises shape data expressing the topography of one or more of the patient's teeth. The segmentation and identification of teeth is preferably based, at least partially, on this shape data. In some cases, the 3D digital representation also comprises format data for the patient's gums. The information about the condition of the gum can then be derived independently or as part of the information about the condition of the tooth. [00034] The 3D digital representation can be obtained by intraoral scanning, by scanning an impression of the patient's teeth or a physical model of the teeth formed using such an impression. [00035] Some scanning technologies are able to measure both the shape of the tooth surface and the internal structures within the tooth. This is, for example, the case for X-ray-based scanners, such as scanners for Cone Beam Computed Tomography, and scanners for optical coherence tomography. Such digitizers can provide a 3D digital representation that contains both the shape data for the topography of the tooth plus data pertaining to the internal structure and subsurface damage in the tooth and the presence of dental restoration caries. [00036] In some embodiments, at least part of the diagnostic data is constituted in the 3D digital representation. An advantage of this modality is that diagnostic data and tooth parts segmented from the digital 3D representation have already been correlated. When the diagnostic data is constituted in the 3D digital representation, it is often aligned with the shape data, expressing the topography of the segmented teeth. For example, tooth shadow data can be recorded simultaneously with shape data, so that in the obtained digital 3D representation, shadow data and shape data for the teeth are accurately correlated. [00037] There is therefore no need for an additional diagnostic data alignment step with the format data of the digital 3D representation to provide or determine the spatial correlation between the two. In this case, obtaining the digital 3D representation and obtaining diagnostic data are obtained in the same method step. The diagnostic data can also be format data from the 3D digital representation, such as when the tooth condition refers to, for example, tooth wear or gum retraction, where the condition can be determined from analysis of the data. Format. [00038] In some embodiments, the digital 3D representation comprises shape data, color or shadow data, and fluorescence data. Such a digital 3D representation may comprise data in the form of (x, y, z, color data, fluorescence intensity data). Here (x, y, z) represents the coordinates in space for a point on the tooth surface, color data and fluorescence intensity data provide information regarding the color and fluorescence of the tooth, respectively, measured from the point (x, y, z) of the tooth surface. Color data can, for example, be given in coordinates (RGB). The 3D digital representation then comprises data in the form of (x, y, z, R, G, B, fluorescence intensity). [00039] In some embodiments, diagnostic data and the digital 3D representation of the patient's teeth are recorded using different devices so that the diagnostic data is not initially part of the digital 3D representation. This may, for example, be the case when the digital 3D representation is recorded using an intraoral digitizer providing a surface digitization of the teeth while the diagnostic data is X-ray data, such as data recorded using a digitizer CBCT. [00040] In some embodiments, at least part of the diagnostic data is comprised in a set of diagnostic data obtained in addition to the 3D digital representation of the patient's teeth. At least part of the information about the tooth's condition can then be derived from this diagnostic dataset. Such a set of diagnostic data can be used, for example, when diagnostic data is extracted from scanners that do not record data sufficiently accurately or detailed for the tooth surface, or when diagnostic data is provided in the form of images. 2D. Other examples of diagnostic data that can be obtained from a diagnostic dataset are CBCT data, separately obtained fluorescence data and IR data. [00041] In such cases, it may be advantageous to determine the spatial correlation between the digital 3D representations and the diagnostic data, that is, the spatial correlation between the digital 3D representation and the diagnostic data from the diagnostic dataset. Correlation can, for example, be expressed as a transformation bringing the digital 3D representation and diagnostic data into a common coordinate system with the correct relative arrangement. Determining this correlation can ensure that the spatial relationship between the tooth and/or gum condition information derived from the diagnostic data and the format data of the 3D digital representation is also determined. This is advantageous, for example, when using a computer program product to map information about the condition of the tooth and/or gum on the digital dental chart. [00042] Spatial correlation can, for example, be determined based on alignment parts of the digital 3D representation and diagnostic data referring to the same surface based on fiducial markers, landmark identification or surface alignment using, for example, a Interactive Nearest Point algorithm. [00043] In some embodiments, the digital 3D representation is formed from a first digital 3D representation comprising shape data for the teeth and a second digital 3D representation comprising the diagnostic data. When the spatial correlation between the first and second digital 3D representations has been determined, a digital 3D representation can be formed, containing both the format data from the first digital 3D representation and the diagnostic data from the second digital 3D representation. [00044] The correlation between the derived tooth condition information and the individual teeth identified from the digital 3D representation can be based on the spatial relationship determined between the digital 3D representation and the diagnostic dataset. [00045] Segmentation of the teeth from the 3D digital representation preferably isolates the parts of the 3D digital representation corresponding to the individual teeth from the remaining part of the 3D digital representation. That is, the 3D digital representation data referring to individual teeth is isolated from each other and from other parts of the digital 3D representation, such as parts referring to the patient's gums. [00046] The segmentation step can be performed before or after the teeth have been identified. If performed earlier, identification can be based on segmented teeth. If performed later, the identification of the segmentation can be based on knowing which of the teeth the particular part of the digital 3D representation refers to. [00047] Segmentation can be performed with and without user interaction. If the 3D digital representation is viewed on a monitor such as a computer screen, an operator can use a pointer as well, such as a computer mouse to mark the boundaries of individual teeth in the 3D digital representation. The segmentation of teeth from the 3D digital representation can then be based on marked boundaries. Computer-based algorithms can also be applied to identify, for example, the transition from tooth surface to gingiva and the boundary of a tooth as it contacts neighboring teeth so that segmentation can be performed with or without the limited user interaction. [00048] When diagnostic data comprises texture data such as color data, segmentation can also be based, at least partially, on diagnostic data. For example, the tooth edge in the gum can be detected from the difference in the color of the teeth and gum. [00049] In some embodiments, tooth condition information for a tooth is derived from variations in diagnostic data through the segmented tooth portion of the 3D digital representation. [00050] When the diagnostic data is comprised in the 3D representation, the diagnostic data is inherently linked to the shape data for the teeth. In some cases, such as when the tooth condition is the presence of caries in a particular part of a tooth derived from a local variation in the fluorescence emitted from that tooth, the derived tooth condition information is already correlated with the part of the tooth. tooth of the 3D digital representation. [00051] In some embodiments, diagnostic data represents an intensity of a signal recorded from the teeth and variations in intensity across tooth surfaces indicate the presence of, for example, caries or an existing dental filling. The presence of a tooth condition may be indicated by an increase or decrease in signal strength at the location of the condition. [00052] When healthy teeth are illuminated by light with a wavelength around 405 mm, the teeth fluoresce with a broad emission at 550 nm, which is typical of natural enamel. In areas infected with tooth decay, additional peaks are often observed at 635 nm and 680 nm due to emission from porphyrin compounds in oral bacteria. That is, the presence of caries can be detected by measuring whether the fluorescence signal at 635 nm and 680 nm recorded from a particular area of a tooth is stronger than other (healthy) parts of the tooth. The increased intensity of the fluorescence signal then provides a direct representation of caries in a tooth. [00053] A reduction in natural fluorescence emitted at 500 nm from teeth illuminated by light at a wavelength of, for example, 405 nm, can be caused by scattering in a region with caries. The detection of a lower fluorescence signal (around 500 nm) can therefore be an indication of the presence of caries in this area of the tooth. [00054] Diagnostic data can express a spatial distribution of the tooth condition. This may be the case when the diagnostic data is fluorescence data illustrating that a tooth has been attacked by caries in a specific region of the tooth, for example, in a particular region on the occlusal surface. [00055] In some embodiments, the information about the condition of the tooth comprises the location of the condition in the tooth. The derived information thus describes the condition and which part of the tooth is affected by the condition. In the case of caries, information about the condition of the tooth can then comprise information describing which caries are present in the tooth and which, for example, are located on the occlusal surface of the tooth. [00056] When the digital 3D representation and/or diagnostic data comprise data for the patient's gums, the method can comprise the derivation of information regarding the condition of the gums, such as its shape, color, spatial relationship with the teeth, or the depth of the gingival pockets. Monitoring the shape of the gingiva and its spatial relationship to the teeth over time provides a means of detecting gingiva retraction and deepening of the gingival pockets. [00057] In some embodiments, the identification of individual teeth comprises the comparison of segmented teeth with digital template teeth from a tooth database. This is possible as different teeth have different shapes (for example, an anterior tooth does not have the same shape as a posterior tooth). Whether a given molar tooth belongs to the left or right side of the patient's mouth can, for example, be determined from the location of the corresponding data in the 3D digital representation of the patient's teeth. [00058] Once teeth have been identified, the identification result can be viewed on a user interface allowing an operator to confirm that the identification is correct. [00059] In some modalities, teeth are manually identified by an operator using, for example, a tool to point in a visualization of the set of teeth in a user interface. The dentist or operator often sees a visualization of teeth during a procedure and manual identification of individual teeth can be accomplished using a pointing tool against a visualization of teeth on a monitor. [00060] In some modalities, the identification of teeth in the obtained digital 3D representation is based on an identification created for a digital 3D representation obtained from the patient's teeth. This previously obtained digital 3D representation may have been analyzed while applying the method during a previous visit to the dentist. The above analysis provides insight into the actual shape of the teeth for this particular patient so that the parts of the teeth in the digital 3D representation obtained during the current visit can be compared to the actual shape. Such a comparison is potentially easier and more accurate than a comparison with the template teeth from a tooth database. [00061] In some modalities, the shapes of the identified teeth are stored in the electronic data record. This provides the advantage that the identification of teeth during a subsequent use of the method, such as during a subsequent visit to the dentist, can be based on the actual shape of the patient's set of teeth. Such identification is potentially faster and requires less computing power compared to when, for example, teeth are identified based on a comparison to standard tooth shapes. [00062] In some embodiments, diagnostic data comprises data selected from the group consisting of texture data, such as tooth color data or tooth shape data, fluorescence data, infrared data, ray data X, optical coherence tomography data, ultrasound data, laser spot images, or data representing occlusal contacts between antagonist teeth. In principle, any type of data suitable for diagnostic purposes and to express the condition of the teeth can be used. [00063] In the context of the present description, the phrase "fluorescence data" refers to data acquired by a measurement of fluorescence detecting a fluorescent signal emitted from the tooth in response to illumination by a probe beam comprising light at wavelengths able to remove fluorescent material from or on teeth. Excitation can, for example, use blue or green light depending on which material is to be excited. [00064] In the context of the present description, the phrase "infrared data" refers to data acquired by an infrared measurement, for example, by an infrared scanner, where the transmission or variations in the transmission of light at wavelengths of infrared through the analyzed tooth or teeth are detected. Variations in the intensity of infrared light transmitted through a tooth can, for example, be due to dental fillings, cracks on the tooth surface or cavities. [00065] Occlusal contacts with antagonist teeth can, for example, be determined using a virtual articulator that reproduces the relative movement of the teeth during bite. Occlusal contacts can also be recorded using articulating paper that leaves colored markings on the teeth. If the digital 3D representation of the teeth is acquired using an intraoral scan recording, both the shape of the teeth and the color of the contact points can be derived from the 3D digital representation. Derived occlusal contact can then be mapped onto the digital dental chart. [00066] The X-ray data can, for example, be in the form of cone beam computed tomography image or 2D X-ray images. [00067] In some modalities, derived tooth condition information refers to information selected from the group consisting of tooth shadow, tooth wear, caries, presence of cariogenic bacteria, presence of fillings from previous dental work, damage caused by acid erosion, damage induced by bruxism, tooth disposition, malocclusion or gum retraction. [00068] Tooth disposition can be derived as part of an orthodontic treatment in which changes in the disposition of the patient's teeth are monitored. Storing information about the condition of the tooth, ie the disposition of the tooth, derived from the patient's teeth during treatment, then provides a strong tool for the orthodontist to visualize progress and to confirm that the treatment is progressing as planned. . [00069] Damage caused by acid erosion or bruxism can be detected from laser spot images providing information on the microstructure of the enamel. Such damage can also be detected to monitor the change in the shape of the patient's teeth over time. [00070] The presence of cariogenic bacteria or fractures on a microstructure scale can be indicators of the development of caries in the tooth. [00071] Information can be derived for several teeth and with respect to several different dental conditions. [00072] In some modalities, the operator will manually note the derived tooth condition information on the digital dental chart. [00073] In some embodiments, the method comprises obtaining a digital dental chart comprising regions representing the surfaces of the patient's teeth and adding a representation of the tooth condition information derived for the region or regions of the digital dental chart corresponding to the tooth or teeth for which information about the dental condition is derived. [00074] In some modalities, the digital dental chart comprises regions representing tooth surfaces, that is, for each of the teeth normally found in a set of the patient's teeth, the digital dental chart has one or more regions representing the tooth surfaces . For anterior teeth, the digital dental chart may comprise a region representing the labial surface and a region representing the lingual surface of each tooth. For each of the posterior teeth, the digital dental chart comprises a region representing the buccal surface, a region representing the lingual surface and a region representing the occlusal surface. For example, if cavities are detected in one of the canines, a representation showing the dentist that cavities are present in that tooth is added to the regions of the dental chart representing that tooth. [00075] In some embodiments, the digital dental chart comprises a 2D dental chart with regions representing the different surfaces of the teeth. Diagnostic data or tooth condition information derived for a segmented tooth can then be projected onto the corresponding region on the digital tooth chart. The region can, for example, represent a buccal/labial, occlusal or lingual surface of the teeth on the digital dental chart. [00076] The digital dental chart can be in the form of a standard dental chart where the regions representing the different teeth are generalized. [00077] In some embodiments, regions are formed based on the corresponding surfaces of the teeth so that the digital dental chart is a custom dental chart in which the regions of the dental chart are formatted and/or colored and/or arranged according to the actual situation in the patient's mouth. [00078] In some embodiments, adding the derived tooth condition information to the digital dental chart comprises mapping a representation of the derived information to the digital dental chart. Information about the condition of the tooth is then displayed in the correct region on the digital dental chart. [00079] In some embodiments, diagnostic data is mapped onto the digital dental chart. For example, illustrative shadow data or fluorescence data can be mapped to regions of the digital dental chart so that the digital dental chart illustrates the tooth surface representations with the diagnostic data projected into the regions. [00080] In some embodiments, diagnostic data comprises texture data and a representation of the texture data is projected onto regions of the digital dental chart representing tooth surfaces. [00081] Derived information regarding the condition of the patient's gums can also be added to the digital dental chart. Gum condition information can be mapped onto the digital dental chart. [00082] Manually derived tooth condition information, such as from separate X-ray images, can be manually annotated on the digital dental chart. [00083] In some embodiments, information about the condition of the tooth is represented on the digital dental chart using a color coding, geometric or text symbols, a vector map, or one or more arrows. Such arrows can, for example, be used to indicate movement since the last chart update when the digital dental chart is used to monitor an orthodontic treatment. Completing the digital dental chart can thus comprise the projection of a symbol for the information in the corresponding region of the digital dental chart. [00084] In some modalities, the digital dental chart is formed at least partially from the 3D digital representation. This provides an advantage when diagnostic data is comprised in the digital 3D representation of teeth as the correlation between the digital dental chart and the digital 3D representation established or used when forming the digital dental chart can also be used for mapping the information about the condition of the derived tooth or the diagnostic data on the digital dental chart. [00085] In some embodiments, the digital dental chart is obtained by loading a dental chart template into a computer system configured to execute the instructions of a computer program product that provides steps of the described methods. [00086] A method for deriving tooth condition information for a patient's teeth is described, where the method comprises: - loading a digital 3D representation of the patient's teeth and diagnostic data for one or more of the teeth into an electronic data processing device; and - executing a computer program product using said electronic data processing device, wherein the computer program product comprises computer readable instructions for: - identifying individual teeth in the digital 3D representation; - segment individual teeth from the digital 3D representation; - derive information about the condition of the tooth from the diagnostic data; and - correlating the derived tooth information with the identified individual teeth. [00087] A method for deriving tooth condition information for a patient's teeth is described, where the method comprises: - loading a digital 3D representation of the patient's teeth and diagnostic data for one or more of the teeth in a digital environment; and - in the digital environment, carry out the steps of: - identification of individual teeth in the digital 3D representation; - the segmentation of individual teeth from the digital 3D representation; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of the derived tooth information with the identified individual teeth. [00088] A computer program product comprising computer readable instructions for: - obtaining a digital 3D representation of the patient's teeth is described; - obtain diagnostic data for one or more of the teeth; and - deriving tooth condition information for the patient's teeth by a procedure comprising: - identifying individual teeth in the 3D digital representation; - the segmentation of individual teeth from the digital 3D representation; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of information about the derived tooth with the identified individual teeth. [00089] A computer program product comprising computer readable instructions which when executed by an electronic data processing device provides a digital environment for deriving tooth condition information for a patient's teeth by a method comprising : - loading a 3D digital representation of the patient's teeth in the digital environment; - the identification of individual teeth in the 3D digital representation; - the segmentation of individual teeth from the digital 3D representation; - loading diagnostic data for one or more teeth in the digital environment; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of the derived tooth information with the identified individual teeth. [00090] In some embodiments, the computer-readable instructions perform one or more of the method steps when executed, such as the steps of identification, segmentation, derivation and correlation. [00091] A computer program product comprising computer readable instructions for providing a virtual environment comprising a user interface is described, where the virtual environment is configured to: - obtain a digital 3D representation of the patient's teeth and display the 3D representation digital in the user interface; - obtain diagnostic data for one or more of the teeth; and - assisting a user in deriving tooth condition information for the patient's teeth by a procedure comprising: i. the identification of individual teeth in the 3D digital representation; ii. the segmentation of individual teeth from the digital 3D representation; iii. deriving information about the condition of the tooth from the diagnostic data; and iv. the correlation of the derived tooth information with the individual identified teeth. [00092] In some embodiments, the virtual environment is configured to display diagnostic data or a digital diagnostic data file containing diagnostic data on the user interface. [00093] A non-transient computer readable medium encoded with the described computer program product is described. [00094] In some embodiments, the electronic data record is configured to be uploaded into a dental practice management system. The dental practice management system can then preferably read information about the condition of the tooth from the electronic data record, so that the dental practice management system, for example, can view the information about the condition of the tooth. Derived tooth on a digital dental chart. The dental practice management system can also be configured to compare tooth condition information and/or gum condition information from the uploaded electronic data record with information derived from previously obtained diagnostic data. The digital dental chart can, for example, be viewed in a dental practice management system user interface. [00095] In some embodiments, the user interface is configured to switch between displaying the digital dental chart and displaying the digital 3D representation of the teeth. The digital dental chart can, for example, comprise a 2D dental chart with regions visualizing the visible surfaces of the patient's teeth where derived information is mapped to these regions, while the digital 3D representation illustrates both the shape and, for example, shading data or fluorescence obtained from the teeth. This provides the advantage that the operator, like a dentist, can easily switch between different views and thus have easier access to the different knowledge provided by the different views. Switching between the different views can, for example, be provided when a virtual push button is pressed or activated in any other suitable way. [00096] In some embodiments, the user interface is configured to switch between displaying the digital dental chart with the derived tooth information displayed in the corresponding regions and displaying the digital dental chart with the derived tooth information hidden. This can be advantageous when texture data, such as tooth color or shading, is visualized on the digital dental chart. The switch then allows one view to be with the 3D digital representation with, for example, shadow data clearly visible without interfering with the tooth condition information and another view providing the tooth condition information. [00097] In some modalities, a visualization of the dental chart comprises the digital 3D representation with only format data and with information about the tooth condition mapped in the regions of the digital 3D representation. This provides the advantage that the tooth condition information is viewed in a digital 3D view of the teeth, but without any texture data interfering with the tooth condition information. [00098] In some embodiments, the digital 3D representation is recorded while a biting tab is disposed on the patient's teeth and the method comprises recording a digital model of the biting tab with the 3D digital representation to derive the tab information for biting in relation to the patient's teeth. [00099] The described modality can be used to add information about the tooth and gum condition to a clean digital dental chart or to update an existing digital dental chart for the patient. That is, the digital dental chart obtained can be a clean template digital dental chart or a pre-populated digital dental chart already comprising the diagnostic data or tooth condition information for the patient's teeth, so that the generation of the digital dental chart provide an up-to-date digital dental chart for the patient's teeth. [000100] A method for deriving information about the tooth condition for a patient's teeth is described, where the method comprises: - obtaining a digital representation of the patient's teeth; - the identification of individual teeth in the digital representation; - the segmentation of individual teeth from the digital representation; - obtaining diagnostic data for one or more of the teeth; - the derivation of information about the condition of the tooth from the diagnostic data; and - the correlation of the information about the derived teeth with the individual teeth. [000101] In some embodiments, the digital representation of the teeth comprises a 2D digital representation or a 3D digital representation of the teeth. [000102] Additionally, the description refers to a computer program product comprising computer readable instructions for making a data processing system perform the method, according to any of the modalities, when said computer readable instructions are performed in the data processing system, and a computer program product, comprising a computer-readable medium having stored computer-readable instructions thereon. [000103] A non-transient computer-readable medium storing therein a computer program is described, wherein said computer program is configured to cause computer-assisted derivation of tooth condition information for a patient's teeth, where the derivation comprises identifying the patient's individual teeth into and segmenting the individual teeth from a 3D digital representation obtained from the patient's teeth, and deriving tooth condition information for the individual teeth from the diagnostic data obtained for one or more of the teeth. [000104] The present invention relates to different aspects including the method, computer program products, systems, digital environments and user interfaces described above and below, and methods, computer program products, systems and/or interfaces of corresponding users, each resulting in one or more of the benefits or advantages described with respect to the first mentioned aspect, and each having one or more modalities corresponding to the modalities described with respect to the first mentioned aspect and/or described in the appended claims . Modalities [000105] 1. Method of filling in a digital dental chart with information about the condition of the tooth, where the method comprises: - deriving information about the condition of the tooth for one or more of the teeth by using the method, according to any of the described modalities; - obtaining a digital dental chart comprising regions representing tooth surfaces; - the correlation of identified and segmented teeth with the corresponding regions of the digital dental chart; and - adding a representation of the derived tooth condition information for the corresponding region or regions of the digital dental chart. [000106] 2. Method, according to modality 1, in which the addition of the derived tooth condition information to the digital dental chart comprises the mapping of the representation of the derived information in the digital dental chart. [000107] 3. Method, according to modality 1 or 2, in which information about the condition of the tooth is represented on the digital dental chart using a color code, geometric or text symbols, a vector map, or a or more arrows. [000108] 4. Method, according to any one of the modalities 1 to 3, in which the digital dental chart is formed at least partially from the digital 3D representation. [000109] 5. Method according to any one of embodiments 1 to 4, in which the diagnostic data comprises texture data and a representation of the texture data is projected on the regions of the digital dental chart representing the surfaces of the teeth. [000110] 6. Method, according to modality 5, in which the digital dental chart comprises a 2D dental chart with regions representing the different surfaces of the teeth and where diagnostic data or information on the condition of the tooth is derived for a Segmented tooth are projected in the corresponding region on the digital dental chart. [000111] 7. Method of generating an electronic data record configured to use a dental practice management system, where the electronic data record comprises tooth condition information for individual teeth of a patient, where the method comprises : - the derivation of information about the tooth condition for one or more of the teeth by using the method according to any of the described modalities; and - storing tooth condition information for the teeth identified in the electronic data record. [000112] 8. Method, according to modality 7, in which the shape data for the segmented and identified teeth are stored in the electronic data record. [000113] 9. Method, according to modality 7 or 8, in which the electronic data record is configured to be loaded into a dental practice management system. [000114] 10. Virtual environment configured to derive information about the tooth condition for a patient's teeth, where the virtual environment is configured to: - obtain a digital 3D representation of the patient's teeth; - identify individual teeth in 3D digital representation; - segment individual teeth from the digital 3D representation; - obtain diagnostic data for one or more of the teeth; - derive tooth condition information from diagnostic data; and - correlating the derived tooth information with the individual teeth. [000115] 11. Virtual environment, according to modality 19, in which the tooth condition information is displayed on the digital dental chart using a color code, geometric or text symbols, a vector map, or one or more arrows. [000116] 12. Virtual environment, according to mode 20, in which the virtual environment is configured to switch between the display of the digital dental chart and the display of the digital 3D representation. [000117] 13. Virtual environment, according to modality 20 or 21, in which the virtual environment is configured to switch between the display of the digital dental chart with the derived tooth information displayed in the corresponding regions and the display of the digital dental chart with the derived information hidden. Brief Description of Drawings [000118] The above and/or additional objectives, characteristics and advantages of the present invention will be further elucidated by the illustrative and non-limiting detailed description, below, of the embodiments of the present invention, with reference to the appended claims, where: Figure 1 illustrates a dental chart used to record information about the condition of the tooth; Figure 2 illustrates a schematic of a flowchart; Figure 3 illustrates stages of an modality; Figure 4 illustrates a system according to an embodiment; Figure 5 illustrates a user interface system according to an embodiment. Detailed Description [000119] In the following description, reference is made to the attached figures, which illustrate, by way of illustration, how the invention can be practiced. [000120] Figure 1 illustrates a dental chart used to record information about the condition of the tooth. This dental chart 100 has patterned regions representing the surfaces and root of each tooth. For example, dental chart 100 has regions 101, 102, and 103 representing the lingual, occlusal, and buccal surfaces, respectively, of tooth No. 32, while region 104 represents the roots of that tooth. The regions representing the tooth surfaces can be shaped to resemble the teeth even more than that seen in Figure 1 or more schematically. Most dental charts have regions for all teeth normally found in the mouth of a human being as also seen in the chart shown in Figure 1. [000121] Different symbols can be used to display tooth condition information derived for the patient's teeth. In the dental chart of Figure 1, there is, among other things, a composite filling on tooth 11 symbolized by a ring filled with dots 105. [000122] Such dental charts have been known for decades in paper form and are also part of the many digital dental practice management systems where a digital dental chart is used. [000123] Figure 2 illustrates a schematic of a flowchart 210 for a modality. [000124] In step 211, the digital 3D representation of the patient's teeth with the shape data describing the topography of the teeth is obtained. The 3D digital representation can be recorded using an intraoral digitizer such as the TRIOS intraoral digitizer produced by 3shape A/S or by digitizing an impression of the teeth or a physical model if the teeth are fabricated from the impression. [000125] The digital 3D representation is loaded into a data processing system having a non-transient computer readable medium encoded with a computer program product having computer readable instructions for identifying and segmenting individual teeth from the remaining parts of the 3D digital representation (step 212). These operations ensure that the digital models of the individual teeth are obtained and receive the corresponding tooth number. Tooth identification can be handled by tooth recognition algorithms run by the data processing system where, for example, digital models of individual teeth are compared with CAD models of teeth standardized for the different types of teeth normally found in the mouth of A person. Identification can also be based on symmetry across the medial plane of the patient which provides a reference for tooth numbering. [000126] In step 213, diagnostic data for the teeth is obtained. Diagnostic data can, for example, be color data, shadow data, fluorescence data, infrared data, cone beam computed tomography (CBCT) data, and occlusal contact data. Figure 2 illustrates obtaining the digital 3D representation 211 and diagnostic data 213 as separate steps. However, this is not necessarily the case as some diagnostic data can be obtained as part of the digital 3D representation, that is, so that actions from steps 211 and 213 are performed in a single step. If, for example, an intraoral digitizer is configured to register color, such as the TRIOS 3 intraoral digitizer, diagnostic data in the form of color or shadow data can be registered simultaneously with the format data of the digital 3D representation. The obtained digital 3D representation then comprises both the shape data and the diagnostic data for the teeth. [000127] The diagnostic data is already loaded in the data processing system and in step 214 the information about the tooth condition is derived from the obtained diagnostic data. The analysis for deriving information about the condition of the tooth depends on the character of the diagnostic data and the information being derived. [000128] In case the diagnostic data is fluorescence data, the derived information can refer, for example, to the presence of caries or cariogenic bacteria in a part of the patient's tooth or the presence of fillings or dental restorations. Cariogenic bacteria produce porphyrin compounds that emit a fluorescent signal at wavelengths above 600 nm in response to excitation by a probe light at a wavelength of 405 nm. If porphyrin compounds are present on the tooth surface part, there will still be a stronger fluorescent signal from that part of the tooth surface and cariogenic bacteria is detected from the local increase in fluorescence intensity. [000129] Fluorescence data can be recorded as part of the 3D digital representation using a digitizer that detects the shape data based on the probe light reflected from the tooth surfaces and simultaneously records the wavelength fluorescent signal bigger. This can be accomplished if the probe light is provided by a blue LED or laser emitting light at a wavelength of 405 nm and the scanner's detector applies a Bayer filter to distinguish between the reflected light and the fluorescent signal. In this case, the fluorescence data can be recorded simultaneously with the reflected light and the recorded digital 3D representation comprises both the format data and the fluorescence data. [000130] Analysis of diagnostic data can be performed by an operator based on a view of the diagnostic data, for example, on a user interface configured to assist the operator in carrying out method steps. For example, diagnostic data in the form of infrared data for the patient's teeth can be presented in the user interface and the operator can identify tooth sections by scattering infrared light such as caries or fractures in tooth enamel . [000131] The analysis can also be performed by a computer program product having instructions for detecting variations, for example, in the intensity of diagnostic data on the tooth. For example, the scattering of infrared light through an enamel fracture will cause a locally lower intensity of transmitted infrared light. The presence and position of such a local intensity minimum can be derived by the product of a computer program where information about the condition of the tooth is derived from the analyzed diagnostic data. [000132] In step 215, the digital dental chart is obtained. This can be obtained from a dental practice management system database and can be a clean template for recording information about the tooth's condition on a patient's first visit to the clinic or it can be a digital dental chart already. filled in with such information on one or more previous visits to the clinic. The digital dental chart can have standardized representations of the patient's teeth as illustrated in Figure 1. [000133] In step 216, the obtained digital dental chart is filled with the information about the condition of the derived tooth. When information is derived from the diagnostic data that is spatially correlated with the digital 3D representation, that is, the spatial correlation of the diagnostic data and format data from the digital 3D representation is known, the derived information can be immediately projected into the corresponding regions. of digital dental chart. If this spatial correlation is not established, it is also possible for the operator to manually record the derived information on the digital dental chart, for example, using a computer mouse to indicate where in a tooth region of the dental chart the information about the condition of the tooth must be added. If gum condition information, such as the presence of inflammation or pocket depth, has been derived from diagnostic data, that information can also be added to the digital dental chart. [000134] Steps 211 to 214 alone refer to a method for deriving tooth condition information, while steps 211 to 216 refer to a method for deriving tooth condition information and filling a Digital dental chart with the derived information. [000135] The steps can be performed by a system having a non-transient computer-readable medium, capable of receiving and storing the digital 3D representation of the patient's teeth, the diagnostic data for one or more of the teeth, and the digital dental chart . A computer program product is also stored in the medium where the computer program product has instructions to derive tooth condition information and to populate the digital dental chart with the derived tooth condition information. The graphical representation of the filled digital dental chart can be displayed on a display unit of the system. Such a system described with respect to figure 4. [000136] Figure 3 illustrates the steps to derive tooth condition information and fill a digital dental chart with the derived information. [000137] Figure 3A illustrates a schematic of a 3D digital representation obtained 320. The 3D digital representation can be viewed in a digital workspace presented to the operator on a monitor such as a computer screen. Digital 3D representation 320 has shape data for the surfaces of the gingiva portion 321 and the six anterior teeth of the patient's upper jaw, ie teeth No. 6 to No. 11 in the universal tooth numbering system. In addition to shape data expressing the topography of the teeth, the 3D digital representation 320 also provides diagnostic data in the form of fluorescence data. The fluorescence data have significantly higher intensities in two sections 322 in the patient's maxillary central incisor 324 and maxillary lateral incisor 325. The fluorescence data can, for example, come from the fluorescence emitted at wavelengths above 600 nm from porphyrin compounds when they are excited by light at 405 nm. As described above, porphyrin compounds indicate that cariogenic bacteria are present. [000138] Digital 3D representation can be obtained by an interoral digitizer using a blue LED to illuminate the patient's teeth. The topography of teeth can be derived from blue light reflected from the surface of the teeth while tooth condition information is derived from the red light emitted by fluorescent materials in the infected regions 322 in response to blue light. This ensures that the fluorescence data, i.e. diagnostic data, is obtained simultaneously with the shape data and that the fluorescence data is part of the digital 3D representation and accordingly, is spatially correlated with the shape data for the teeth. [000139] Figure 3B illustrates the 3D digital representation obtained 320 with the maxillary central incisor segmented from the 3D digital representation. The segmented portion forms a digital model 327 of the maxillary central incisor (tooth #8) shown as a dotted line in the figure. The segmentation of teeth from the digital 3D representation involves a detection of the surface boundaries for each tooth. The edge in the gingiva can be detected based on the shape data from the 3D digital representation or on the color data from the 3D digital representation. Segmentation can be performed by a computer program product having instructions stored therein for detecting limits in the 3D digital representation or by an operator marking the limits in the 3D digital representation. The limits detected by the computer algorithm can also be viewed in a digital workspace so the operator can verify that the detected limits are correct. [000140] The individual teeth are identified using a computer program product configured to carry out the identification from the digital 3D representation. This can be done based on an analysis of the shape of the segmented teeth and/or a comparison with template teeth describing the standard shapes and relative sizes of the teeth. If the 3D digital representation has shape data for the central incisors, these can be detected based on their symmetry and the remaining teeth identified based on their natural position relative to the central incisors. In Figure 3B, the segmented tooth is identified as tooth #8 using the universal tooth numbering system. Instead of using a computer program product, the operator can identify each tooth using, for example, a pointing tool with respect to the digital workspace. [000141] When the fluorescence data is obtained as part of the 3D digital representation, the spatial correlation between the fluorescence data and the format data is known. If analysis of the fluorescence data concludes that the fluorescent signal recorded from some sections of the teeth, such as sections 322 at the incision edges of maxillary central incisor 324 and maxillary lateral incisor 325, is significantly stronger than the fluorescent signal from other parts of the teeth, it will be concluded that there is a risk of cariogenic bacteria being present in these sections. That is, based on the fluorescence data, the system or operator derives information about the condition of the tooth from which caries are likely to be present or developing in sections 322 in maxillary central incisor 324 and maxillary lateral incisor 325. The derived information is displayed using a symbol 330 on the digital model of the segmented tooth 327 as illustrated in Figure 3C. [000142] Figure 3D illustrates symbols 330, 331 for tooth condition derived for the maxillary central and lateral incisors projected in the corresponding regions of a digital dental chart 332 as described in figure 1. The digital dental chart filled in this way can be stored and examined, for example, at the next visit to a dental clinic to determine what has changed since the last visit. [000143] Figure 4 illustrates a scheme of a system according to a modality. The system 440 comprises a computer device 441 comprising a computer readable medium 442 and an electronic data processing device in the form of a microprocessor 443. The system further comprises a visual display unit 444, and at least one access device and /or interface that allows the operator to use the functionality of the computer system. The access device and/or interface may include, but is not limited to, a keyboard, mouse, touch screen, pen, joystick, light pen, trackball, voice interactive function, three-dimensional glove, solid three-dimensional mouse ball, computer interface. graphical user (GUI), display screen, printer, and other known input or output devices and interfaces. In Figure 4, the access devices are a computer keyboard 445 and a computer mouse 446 for logging data and activating virtual buttons of a user interface displayed on the visual display unit 444. The visual display unit 444 can, for example , be a computer screen. Computer device 441 can obtain a digital 3D representation of the patient's teeth and diagnostic data that can be stored on computer readable medium 442 and loaded into microprocessor 443 for processing. Digital 3D representation can be obtained from a 3D color digitizer 450, such as the TRIOS 3 intraoral digitizer manufactured by 3Shape TRIOS A/S, which is capable of recording both the shape and color of teeth. [000144] The computer system guarantees the execution of the method steps by which the acquired digital 3D representation can be manipulated, automatically or in response to operator commands. The computer can be a general purpose computer capable of running a wide variety of different software applications or a specialized device limited to particular functions. In some embodiments, the computer is a network or other configuration of computing devices. The computer can include any type, number, shape or configuration of processors, system memory, computer readable media, peripheral devices and operating systems. In one embodiment, the computer includes a personal computer (PC), which can be in the form of a desktop computer, laptop, tablet PC, or other known forms of personal computers. [000145] Diagnostic data can be recorded using different types of 451 diagnostic devices, such as an infrared digitizer and a CBCT digitizer to record infrared data and CBCT data, respectively. The recorded data is loaded onto the computer readable medium 442 and analyzed using the microprocessor 443 to derive tooth condition information for the patient's teeth. [000146] A digital dental chart containing pre-recorded data for the patient is stored on computer readable medium 442 from where it can be loaded onto the microprocessor 443 and viewed on the display monitor unit 444 so that the dentist can recall the dental history of the patient. [000147] The 441 system is configured to allow an operator to arrange the 3D digital representation and diagnostic data according to the spatial arrangement that best reflects the correct anatomical arrangement. This is relevant when the spatial correlation between the digital 3D representation and diagnostic data is needed but not known. This may, for example, be the case when the diagnostic data is CBCT data that has been recorded independently of the digital 3D representation. The digital 3D representation and diagnostic data can be moved relative to each other in three dimensions using, for example, a computer mouse to drag or rotate the views of the digital 3D representation and diagnostic data on the visual display unit 444 When the operator is satisfied with the relative arrangement, he activates a virtual push button on the user interface and the spatial relationship is stored on the computer readable medium 442. [000148] Stored in computer readable medium 442 is also a computer program product having instructions for analyzing diagnostic data to derive tooth condition information for the patient's teeth. [000149] The computer readable medium 442 additionally stores a computer program product for segmenting teeth from the digital 3D representation and identifying the individual teeth. When applied to the 3D digital representation, the result is digital models of the individual teeth where the corresponding tooth numbers are known. These digital models of individual teeth can be stored along with the digital dental chart on the patient's electronic joint on the computer-readable medium 442 and be reused at the next visit to identify individual teeth in a digital 3D representation recorded at the next visit. [000150] When the spatial correlation between the 3D digital representation and the diagnostic data is known, it is also known for which tooth or teeth an information about the tooth condition is determined. Once the tooth condition information is derived, it can thus be projected onto the digital dental chart viewed on the visual display unit 444. This way, the dentist will have a useful tool to assess the patient's dental status and to determine which treatments can be applied to correct any problems. [000151] Figure 5 illustrates a schematic of a digital workspace of a digital environment according to a modality. [000152] In a first part 557 of the digital workspace 555, a segmented tooth 527 of a 3D digital representation is illustrated. Information on the condition of tooth 530 was derived from the diagnostic data obtained and is displayed on the segmented tooth. A digital dental chart 560 is also noted in the first part 557 of the digital workspace 555. When the operator confirms the derived tooth condition information, a symbol for the information can be projected onto the digital dental chart 560 by activating the button. virtual pressure 561. The virtual pressure button can, for example, be activated to adjust the position of the symbol in the region of the digital dental chart representing the tooth if the operator wishes to do so. [000153] The second part 558 of the digital workspace comprises data logging sections 562, 563, for example, to record the dentist's comments regarding the patient's dental status, to select which diagnostic data to analyze and to choose the graph digital dental system in which information about the tooth condition must be recorded. [000154] The digital workspace can be viewed on a visual display unit, such as a computer screen being part of a system configured to implement the described method. [000155] The digital environment and the workspace illustrated in figure 5 comprise one or more digital tools that can be displayed in the digital workspace. These digital tools allow the operator to interact with the digital environment, for example, by recording data and to be part of at least one of the identification, segmentation, derivation and correlation steps. In Figure 5, one of these tools is embodied as virtual pushbutton 561. When activated, the virtual pushbutton causes the execution of instructions for filling the digital dental chart with information about the derived tooth condition. Digital tools for segmentation and identification of individual teeth from the digital 3D representation can be embodied by instructions from a computer program product allowing for automatic segmentation and identification of teeth. [000156] Although some embodiments have been described and illustrated in detail, the invention is not restricted to this, but may also be embodied in other ways within the scope of the present matter defined in the following claims. In particular, it should be understood that other modalities can be used and structural and functional modifications can be made without departing from the scope of the present invention. [000157] In the device, the claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The mere fact that certain measurements are mentioned in mutually different pending claims or described in different modalities does not indicate that a combination of these measurements can be used to advantage. [000158] A claim may refer to any one of the preceding claims and "any" is understood to mean "any one or more" of the preceding claims. [000159] It should be emphasized that the term "comprises/comprising" when used in this specification specifies the presence of mentioned features, integers, steps or components, but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. [000160] The characteristics of the method described above and below can be implemented in software and performed in a data processing system or other processing means caused by the execution of computer-executable instructions. Instructions can be means of program code loaded into memory, such as RAM, from a storage medium or from another computer over a computing network. Alternatively, the features described can be implemented by wired circuitry instead of software or in combination with software.
权利要求:
Claims (19) [0001] 1. Method for filling a digital dental chart with dental condition information for a patient's teeth, characterized by the fact that it comprises the steps of: obtaining a three-dimensional (3D) digital representation of the patient's teeth; identification of individual teeth in 3D digital representation (212); segmenting individual teeth from the 3D digital representation (212), wherein the segmentation comprises isolating portions of the 3D digital representation corresponding to the individual teeth from the remainder of the 3D representation; obtaining diagnostic data for one or more of the patient's teeth; deriving dental condition information about specific locations of one or more teeth from diagnostic data (214); correlate the derived tooth information with the specific locations of individual teeth; obtain a digital dental chart comprising regions that represent surfaces of the patient's teeth; correlate the individual teeth with the corresponding regions of the digital dental chart; and add a representation of the dental condition information derived from specific locations in the corresponding region or regions of the digital dental chart. [0002] 2. Method according to claim 1, characterized in that at least part of the diagnostic data is comprised in the digital 3D representation. [0003] 3. Method according to claim 2, characterized in that the information about the tooth condition for a tooth is derived from variations in diagnostic data through the segmented tooth part of the digital 3D representation. [0004] 4. Method according to any one of claims 1 to 3, characterized in that at least part of the diagnostic data is comprised in a set of diagnostic data obtained in addition to the digital 3D representation of the patient's teeth. [0005] 5. Method according to claim 4, characterized in that it comprises the determination of a spatial correlation between the digital 3D representation and the diagnostic data of the diagnostic data set. [0006] 6. Method according to claim 5, characterized in that the spatial correlation between the digital 3D representation and the diagnostic data is determined by the alignment of the corresponding parts of the digital 3D representation and the diagnostic dataset. [0007] 7. Method according to any one of claims 1 to 6, characterized in that the alignment of corresponding parts of the 3D digital representation and the diagnostic data are based on one or more of the fiducial markers, reference point identification or surface alignment using an Interactive Nearest Point algorithm. [0008] 8. Method according to claim 1, characterized in that the tooth condition information comprises the location of the condition in the identified tooth. [0009] 9. Method according to claim 4, characterized in that the correlation of the derived tooth information with the identified teeth comprises determining the location of the tooth condition in the tooth. [0010] 10. Method according to claim 1, characterized in that the identification of individual teeth comprises the comparison of segmented teeth with digital template teeth from a tooth database. [0011] 11. Method according to any one of claims 1 to 10, characterized in that the identification of teeth in the obtained digital 3D representation is based on an identification performed by a digital 3D representation previously obtained from the patient's teeth. [0012] 12. Method according to any one of claims 1 to 11, characterized in that the diagnostic data comprises data selected from the group consisting of texture data, fluorescence data, infrared data, X-ray data, optical coherence tomography data, ultrasound data, laser spot images, or data representing occlusal contact between antagonist teeth. [0013] 13. Method according to any one of claims 1 to 12, characterized in that the information on the condition of the derived tooth refers to information selected from the group consisting of tooth shadow, tooth wear, caries, presence of cariogenic bacteria, presence of fillings from previous dental work, damage caused by acid erosion, damage induced by bruxism, tooth disposition, malocclusion or gum retraction. [0014] 14. Method according to claim 1, characterized in that the diagnostic data comprises tooth color data or tooth shade data. [0015] 15. Method according to claim 1, characterized in that the correlation includes graphically correlating the derived tooth information with the specific locations of the individual teeth. [0016] 16. Method according to claim 1, characterized in that the correlation is expressed as a transform configured to bring the digital 3D representation and diagnostic data into a common coordinate system with a correct relative arrangement. [0017] 17. Method according to claim 1, characterized in that the digital dental chart comprises regions representing different surfaces of the teeth and the method further comprises projecting the derived diagnostic data or tooth condition information for a segmented tooth in the corresponding region representing the different surfaces of the teeth on the digital dental chart. [0018] 18. Method according to claim 1, characterized in that the regions of the teeth in the digital dental chart are based on the corresponding surfaces of the teeth of the digital 3D representation so that the regions of the dental chart are molded and/or colored and /or arranged according to the patient's teeth. [0019] 19. Method according to claim 1, characterized in that the addition step includes mapping the derived dental condition information about specific locations to the corresponding region or regions of the digital dental chart.
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公开号 | 公开日 CN108601636B|2021-04-27| US20210106229A1|2021-04-15| CN108601636A|2018-09-28| BR112018011227A2|2018-11-21| WO2017093563A1|2017-06-08| EP3383311A1|2018-10-10| KR20180090308A|2018-08-10| JP2019500095A|2019-01-10| US10902595B2|2021-01-26| US20180357766A1|2018-12-13|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US5356294A|1993-07-30|1994-10-18|Wataru Odomo|Dental diagnostic and instructional apparatus| US7068825B2|1999-03-08|2006-06-27|Orametrix, Inc.|Scanning system and calibration method for capturing precise three-dimensional information of objects| DE19709500C1|1997-03-07|1998-07-23|Kaltenbach & Voigt|Method and device for determining caries on teeth| US7717708B2|2001-04-13|2010-05-18|Orametrix, Inc.|Method and system for integrated orthodontic treatment planning using unified workstation| US6582225B1|2000-10-11|2003-06-24|Earl O. Bergersen|Dental diagnosis and dispensing apparatus and a system and a method for providing same| WO2002091279A2|2001-05-03|2002-11-14|University Of Florida|Method and system for recording carious lesions| US8013853B1|2002-03-06|2011-09-06|Regents Of The University Of Minnesota|Virtual dental patient| US7341450B2|2003-10-03|2008-03-11|Shade Analyzing Technologies, Inc.|Tooth shade scan system and method| US8126726B2|2004-02-27|2012-02-28|Align Technology, Inc.|System and method for facilitating automated dental measurements and diagnostics| US20060069591A1|2004-09-29|2006-03-30|Razzano Michael R|Dental image charting system and method| US7596253B2|2005-10-31|2009-09-29|Carestream Health, Inc.|Method and apparatus for detection of caries| US7577284B2|2006-04-21|2009-08-18|Carestream Health, Inc.|Optical detection of dental caries| CN101579263B|2008-05-12|2013-05-08|徐步光|Digital management system for dental clinic| US9710603B2|2008-11-12|2017-07-18|Softech, Inc.|Dental charting system| US8896592B2|2009-08-21|2014-11-25|Align Technology, Inc.|Digital dental modeling| US8416984B2|2011-01-20|2013-04-09|Carestream Health, Inc.|Automatic tooth charting using digital images| KR101911567B1|2011-03-21|2018-10-24|케어스트림 덴탈 테크놀로지 톱코 리미티드|A method for tooth surface classification| US10617489B2|2012-12-19|2020-04-14|Align Technology, Inc.|Creating a digital dental model of a patient's teeth using interproximal information| US9158889B2|2013-04-26|2015-10-13|Oral4D Systems Ltd.|Electronic dental charting| US20150294066A1|2014-04-09|2015-10-15|Douglas A. Golay|Combination dental imaging system and dental practice management and charting system with a bi-directional communication interface| US9510757B2|2014-05-07|2016-12-06|Align Technology, Inc.|Identification of areas of interest during intraoral scans|US10129448B2|2016-07-20|2018-11-13|Dental Imaging Technologies Corporation|Optical coherence tomography imaging system| WO2021058643A1|2019-09-27|2021-04-01|3Shape A/S|A method for digitally designing a denture using an existing denture| US20210264600A1|2018-06-21|2021-08-26|3Shape A/S|Method, device and system for correlating at least one additional 2d-image to a 3d-representation of at least a part of tooth| KR102309052B1|2018-08-01|2021-10-05|연세대학교 산학협력단|Method for predicting dental caries area and device for predicting dental caries area using the same| KR102132369B1|2018-08-23|2020-07-09|주식회사 쓰리디산업영상|Tooth segmentation system and method| US10991091B2|2018-10-30|2021-04-27|Diagnocat Inc.|System and method for an automated parsing pipeline for anatomical localization and condition classification| KR102142336B1|2018-11-14|2020-08-07|오스템임플란트 주식회사|Method, Apparatus and Recording For Providing Of Tooth Image| KR102056480B1|2018-12-10|2020-01-22|이치중|Method and system for managing digital dental care data| KR102163226B1|2018-12-12|2020-10-08|주식회사 아이오바이오|Dental imaging apparatus and method for imaging teeth using the same| CN109584986A|2018-12-14|2019-04-05|深圳市倍康美医疗电子商务有限公司|Tooth-planting visualizes physical examination report-generating method, terminal and storage medium| CN109730646A|2019-02-01|2019-05-10|温州大学|3-D scanning imaging method in a kind of mouth| WO2020161301A1|2019-02-07|2020-08-13|Trophy Sas|Method and apparatus for training automatic tooth charting systems| KR102197111B1|2019-05-08|2020-12-30|경북대학교 산학협력단|Measurement System and Method of Remained Adhesive Quantity on The Tooth Surface| KR102267197B1|2019-07-08|2021-06-21|서울대학교치과병원|Method and apparatus for recording and displaying dental care data on a digital dental image| WO2021113501A1|2019-12-04|2021-06-10|Carestream Dental Llc|Intraoral 3d scanning with automatic charting| WO2021235764A1|2020-05-22|2021-11-25|오스템임플란트 주식회사|Method for displaying dental formula for orthodontics and device for displaying dental formula for orthodontics| KR102356001B1|2020-05-22|2022-01-27|오스템임플란트 주식회사|Method and Apparatus Of Displaying To Dental Formula Symbol, and Recording Medium|
法律状态:
2020-05-19| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]| 2021-03-23| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]| 2021-06-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]| 2021-07-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/12/2016, OBSERVADAS AS CONDICOES LEGAIS. |
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申请号 | 申请日 | 专利标题 DKPA201570803|2015-12-04| DKPA201570803|2015-12-04| PCT/EP2016/079749|WO2017093563A1|2015-12-04|2016-12-05|Deriving tooth condition information for populating digital dental charts| 相关专利
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