• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a personalized tool for forming a dental restoration in a patient's mouth and includes a mold body to provide a personalized fit with at least one patient's tooth. The mold body includes a facial portion that forms a facial surface color-responding to a facial surface of the tooth, and a separate lingual portion that forms a lingual surface corresponding to a lingual surface of the tooth. The mold body is configured to match the patient's tooth to form a mold cavity that surrounds the missing tooth structure of the tooth.
    公开号:BR112017012380B1
    申请号:R112017012380-0
    申请日:2015-12-07
    公开日:2021-03-02
    发明作者:James D.Hansen；Joseph C. Dingeldein；Shannon D. Scott；Joshua K. Schroeder；Bruce R. Broyles；Mary C. Doruff
    申请人:3M Innovative Properties Company；
    IPC主号:
    专利说明:

    Technique field
    [001] This disclosure refers to dental restorations. Background of the invention
    [002] A dental restoration, or a filling, uses a dental restoration material, used to optimize the function, integrity and morphology of absent or irregular dental structure. For example, a dental restoration can be used to restore missing dental structure after external trauma or as part of a dental caries restoration or tooth decay treatment.
    [003] Restorative dental procedures traditionally consist of perforating the decay of an infected tooth (commonly referred to as “tooth preparation”) and then using simple tools and a high level of expertise to isolate, retract, fill and contour the finished restoration. . Quality insulation through a rubber barrier is impractical and is often omitted in exchange for less efficient insulation through cotton rolls - increasing the risk of contamination that reduces the longevity of the restoration. The retraction of soft and hard tissues includes the manipulation of cords, wedges and matrix bands, and an imperfect technique can result in contamination, residual burrs in the proximal areas and unsatisfactorily adapted contacts.
    [004] While “bulk fill” restorative materials and high intensity curing lamps facilitate relatively fast filling of deep cavities (eg 4 to 5 mm), many restorations are completed in a single shade, as professionals in the field may not be sure of the correct layer arrangement protocol for multiple shades or types of restorative material. Finally, with little geometric orientation available on a prepared tooth, the creation of the final filling level and occlusal surface geometry can include over-filling with dental restoration material, followed by an iterative process of dental sanding contact and contact verification and bite function in an anesthetized patient. This process can be the most time consuming for dental restorations and errors in this case can result in tooth sensitivity and return visits for adjustments. Summary of the invention
    [005] The present disclosure refers to dental restoration techniques incorporating the molding of dental restoration material directly onto a tooth located inside a patient's mouth. The techniques presented include methods for dental restoration, tools adapted for dental restoration and techniques for the production of tools adapted for dental restoration. The techniques presented include tools that provide customized mold cavities for an individual patient. In some examples, these adapted tools can be produced using 3D printing techniques.
    [006] In one example, this invention relates to a customized tool for forming a dental restoration in a patient's mouth. The mold body offers a personalized fit on at least one patient's tooth. The mold body includes a facial portion that forms a facial surface corresponding to a facial surface of the tooth, and additionally includes a separate lingual portion forming a lingual surface that corresponds to a lingual surface of the tooth. The mold body is configured to match the patient's tooth to form a mold cavity that surrounds the missing tooth structure of the tooth.
    [007] In a further example, the present invention relates to a kit that includes the customized tool and a dental restoration material.
    [008] In another example, the present disclosure relates to a method for forming a dental restoration in a patient's mouth that comprises positioning a mold over a portion of a patient's tooth. The mold combines with the tooth to form a mold cavity that surrounds the missing tooth structure of the tooth. The method additionally comprises injecting a dental restoration material into the mold cavity, allowing the dental restoration material to be cured within the mold cavity to reform the tooth, and removing the mold from the patient's tooth.
    [009] In a further example, the present invention relates to a method for forming a dental restoration in a patient's mouth, which comprises placing dental restoration material on a portion of a patient's tooth and positioning a mold over the tooth portion. The mold combines with the tooth to form a mold cavity that surrounds the missing tooth structure of the tooth. The method additionally includes allowing the dental restoration material to be cured within the mold cavity to reform the tooth, and removing the mold from the patient's tooth.
    [010] In another example, the present disclosure relates to a process for the production of a customized tool to form a dental restoration of a tooth inside a patient's mouth, the process comprising obtaining data from three-dimensional scanning of a patient's mouth, and the three-dimensional impression of a customized tool to form the dental restoration of the tooth based on the three-dimensional scanning data of the patient's mouth. The customized tool is configured to match the patient's tooth to form a mold cavity that surrounds the missing tooth structure.
    [011] Details of one or more examples of this description are presented in the attached drawings and in the description below. Other features, objectives and advantages of this disclosure will be apparent from the description and drawings of the claims. Brief description of the drawings showing some examples of the present disclosure
    [012] Figure 1 is a diagram of a system for detecting and defining the missing dental structure using a 3D digital model based on intraoral scans, impression scans, or model scans.
    [013] Figures 2 and 3 illustrate components of a customized tool to form a dental restoration in a patient's mouth with a mold body that includes a lingual portion and a facial portion that fit under pressure, and a sliding occlusal portion.
    [014] Figures 4 to 6 illustrate a customized tool to form a dental restoration in the mouth of a patient with a mold body that includes a lingual portion and a facial portion that fit under pressure, and an articulated occlusal portion.
    [015] Figures 7 to 10 illustrate a customized tool to form a dental restoration in the mouth of a patient with a mold body that includes a lingual portion and a facial portion that fit together under pressure and that combine to form an occlusal surface. of the mold.
    [016] Figures 11 to 14 illustrate a customized tool for forming dental restorations of two adjacent teeth in a patient's mouth with a mold body that includes a lingual portion and a facial portion that fit together under pressure and a sliding occlusal portion, the sliding occlusal portion includes injection ports for releasing dental restoration material into the mold cavities of the custom tool.
    [017] Figures 15 to 18 illustrate a customized tool for forming dental restorations of two adjacent teeth in a patient's mouth, configured to provide separation of adjacent teeth during restoration.
    [018] Figures 19 to 22 illustrate a customized tool to form a dental restoration in the mouth of a patient with a mold body that includes a lingual portion and a facial portion, clamps that hold the lingual and facial portions together, a sliding occlusal portion and a wedge to facilitate the separation of adjacent teeth during restoration.
    [019] Figure 23 is a flowchart illustrating an example of a technique for forming a dental restoration in a patient's mouth. Detailed Description
    [020] Although conventional dental restoration techniques often include iterative steps and benefits from the practitioner's significant skill and experience, this description includes techniques that can use custom molds to facilitate the formation of dental restorations in a patient's mouth more accurate and fast than in general would be possible with the use of conventional dental restoration techniques.
    [021] The techniques presented include capturing a patient's three-dimensional dentition with an intraoral tomograph. The custom tool for a dental restoration can include a mold based on the patient's three-dimensional (3D) dentition. The techniques presented can allow high quality dental restorations with reduced time and skill requirements, compared to conventional dental restoration techniques.
    [022] Figure 1 is a diagram of a system 10 for detecting and defining tooth structure using a 3D digital model based on 3D intraoral scans or 3D impression scans or teeth models. System 10 includes a processor 20 that receives 3D digital models of teeth (12) from intraoral scans or scans of tooth impressions. System 10 may also include an electronic display device 16, such as a liquid crystal display (LCD) device, for displaying indications of changes in tooth shape and an input device 18 for receiving user commands or other information. Systems for generating images or 3D digital models based on image sets from multiple views are disclosed in U.S. Patent Nos. 7,956,862 and 7,605,817, both of which are incorporated herein by reference in the present invention. These systems can use an intraoral tomograph to obtain digital images from multiple views of teeth or other intraoral structures, and these digital images are processed to generate a 3D digital model representing the scanned teeth. System 10 can be implemented, for example, with a desktop computer, notebook, or tablet. System 10 can receive 3D scans locally or remotely over a network, a local area network (LAN) and / or the internet.
    [023] Figures 2 and 3 illustrate components of a customized tool to form a dental restoration in a patient's mouth. The customized tool of Figures 2 and 3 comprises a mold body, including a lingual portion 30 and a facial portion 12 that fit together under pressure, as well as the sliding occlusal portion 50. More specifically, the lingual portion 30 forms recesses 38 that are configured to receive protrusions 24 from the facial portion 12 to create the snap fit connection between the facial portion 12 and the lingual portion 30. In addition, the facial portion 12 and the lingual portion 30 can be additionally joined by the sliding occlusal portion 50, including flaps 56, 57, or alternatively flap 56 and a hinge element (as shown in Figures 4 to 6).
    [024] The facial portion 12 and the lingual portion 30 are configured to surround a patient's tooth. In particular, the facial portion 12 forms a personalized facial surface 14 of the tooth, the lingual portion 30 forming the personalized lingual surface 32 of the tooth. In addition, the facial portion 12 and the lingual portion 30 form customized distal surfaces 18a and 18b, respectively, corresponding to tooth surfaces, as well as personalized medial surfaces 20a and 20b, respectively, corresponding to mesial surfaces of the tooth. Similarly, the occlusal portion 50 forms the occlusal surface 52, corresponding to occlusal surfaces of the tooth. The facial portion 12 and the lingual portion 30 also contain personalized gingival surfaces 22a and 22b, respectively, which seal the corresponding gingival surfaces inside the patient's mouth.
    [025] Mold body, which includes facial portion 12, 30 and occlusal portion 50 combines with the tooth portion, not shown, to form a mold cavity. The mold cavity includes missing tooth structure of the tooth, for example for the preparation of a tooth removed tooth structure to remove a lesion (or cavities) with cavities to form cavity 104 (Figure 4), suitable for receiving dental restoration material. By positioning the customized tool on the tooth, the dental restoration material can be positioned in the mold to assume the shape of the cavity structure 104 of the missing tooth.
    [026] The facial portion 12 and the lingual portion 30 each form upper surface portions 26 of the customized tool, as well as the inner side surface 28 and the inner receiving surface 25, which are configured to accept the sliding occlusal portion 50 of the mold body. The occlusal portion 50 forms a lower surface 58, which is configured to align with the internal receiving surface 25. The occlusal portion 50 also forms the flap 56, which is configured to align with the external surface 16 of the facial portion 12. , and the flap 57, which is configured to align with the outer surface 34 of the lingual portion 30. The occlusal portion 50, including the flaps 56 and 57, can serve to hold the facial portion 12 and the lingual portion 30 together, when the patient's tooth is encircled.
    [027] The facial portion 12 and the lingual portion 30 are also configured to align with the adjacent teeth inside the patient's mouth, thus facilitating precise positioning inside the patient's mouth. In particular, the facial portion 12 and the lingual portion 30 form personalized mesial surfaces 40a and 40b, respectively, corresponding to mesial surfaces of the distally adjacent tooth. The facial portion 12 and the lingual portion 30 also form personalized distal surfaces 42a and 42b, respectively, corresponding to distal surfaces of the mesially adjacent tooth.
    [028] Figures 4 to 6 illustrate the custom tool 10. The custom tool 10 is substantially similar to the custom tool in Figures 2 and 3, except that the occlusal portion 50 includes an articulated connection to the lingual portion 30, rather than a sliding connection. Briefly, the features already discussed with respect to the custom tool in Figures 2 and 3 are not repeated in detail with respect to the custom tool 10.
    [029] Figures 4 to 6 further illustrate the personalized tool 10 in combination with teeth 100, 106, 108 in a patient's mouth. The patient's mouth additionally includes gum 110. Tooth 100 includes crown 102 with cavity 104. As shown, cavity 104 can be a carious lesion on tooth 100 previously prepared by drilling or other preparation to remove dental material damaged. The facial portion 12 covers the facial surface 116 of tooth 100, while the lingual portion 30 covers the lingual surface 118 of tooth 100. The customized tool 10 facilitates restoration of tooth 100 including the restoration surrounding cavity 104.
    [030] The custom tool 10 can be formed based on a digital model of a patient's teeth and mouth, which can be produced through a 3D intraoral scan, such as a multi-channel tomograph (for example, the TRUE DEFINITION SCANNER, commercially available from 3M Company, Saint Paul, Minnesota, USA). Methods of capturing teething in a digital model include intraoral scanning or scanning a physical dental impression, or scanning a model emanating from a physical dental impression. Minimally, the scan comprises a target area of a tooth to be restored. The scan may additionally include one or more of the target area, the complete tooth to be restored, the adjacent teeth, the surrounding soft tissue, the opposite dentition and the bite record. The data can be captured during routine examinations, at the time when a cavity is diagnosed, or during the restoration procedure. The captured data can be modified by trimming, error correction and hole filling. Additional data set (s), such as opposite dentition, 2D and 3D X-ray data of internal or subgingival features and specific standard root data not related to patients can be used to increment the captured data.
    [031] In a particular example, the custom tool 10 can be designed digitally using CAD software, such as solid modeling software based on the digital model. For example, fixed, parametric or blank tool libraries can be created in CAD software (for example, SolidWorks, NX / Unigraphics, ProEngineer, etc.). These objects are typically exported to a separate 3D virtual work environment, capable of controlling point cloud or triangular mesh data, or performing Boolean operations (for example, Materialize Magics, SpaceClaim). Optionally, standard shapes are scaled to ensure an appropriate fit between the standard part and the patient's dentition. The patient data can then be subtracted in the standard way. As an alternative approach to Boolean subtraction, the design of the tool can be cut from a virtual shell built on the structure of the target tooth.
    [032] The custom tool 10 has been designed to fit over tooth 100, the tooth to be restored (a first molar), as well as over the portions of adjacent teeth 106, 108. The shape of the occlusal surface 52 can match the shape of the crown 102, prior to the preparation of cavity 104. In some other examples, the shape of the occlusal surface 52 may correspond to the contact surfaces of the opposite tooth to identify the missing tooth structure that corresponds to cavity 104 of the crown 102. In other examples, the occlusal surface shape 52 can be derived from a shape designed by smoothing or flattening the digital model of the surface adjacent to cavity 104. Alternatively or additionally, the occlusal surface can be derived from occlusal surfaces not subjected to restoration (for example, using the mirror image of the occlusal surface of the other first molar in the same arch or projecting based on the opposite dentition). Alternatively or additionally, the occlusal surface can be constructed in order to achieve the desired therapeutic benefit, such as opening the bite or optimizing the occlusion. Software useful in this project includes LavaDescription, available from 3M Company, Saint Paul, Minnesota, USA, 3Shape CAD Design, available from 3Shape, Copenhagen, Denmark, or exocad, available from Exocad GMBH, Darmstadt, Germany. In any case, to design the components of the custom tool 10, a virtual mold block can be created based on the digital model and segmented into the mold components, in this example, the facial portion 12, the lingual portion 30 and the occlusal portion 50 The precise location of one or more elements of the custom tool 10 can be selected based on the digital model to, for example, facilitate the assembly of the components inside the patient's mouth and / or to ensure access to a mold cavity with a injection port or breather. Such custom positioned elements can include a dividing line, an injection port, a breather, a door, and / or a contour line between the components. In this way, the mold components facilitate the eventual assembly of the customized tool 10 on the tooth 100 without geometric interference.
    [033] The design of tool 10 can be optionally tested and / or optimized in a virtual environment that simulates its function in the mouth, such as a virtual articulator. The tool or mold shape is segmented along dividing lines to mitigate undercuts when the material's compliance is insufficient for release, or to define volumes for creating variable material property transitions or gradients.
    [034] In the examples in Figures 4 to 6, the occlusal portion 50 is connected to the lingual portion 30 through an articulated connection. In contrast, in Figures 2 and 3, the occlusal portion 50 has been configured to be slidably received by the facial portion 12 and the lingual portion 30. In any case, the components in the CAD software can be converted into a dot mesh file in 3D or other format to facilitate production with a 3D printer, CNC machining (computer numerical control) or otherwise. The tool designs are then exported to a device capable of making 3D objects, such as a CNC machining device or a wide range of additive manufacturing / 3D printing equipment. Parts can be treated with agents to improve surface finish or release. The manufactured parts are then used in the dental procedure. They can be printed on the spot or can be shipped as part of a procedure kit that includes adhesives, dental restoration material and other consumables for the procedure. In some instances, dental restoration material is provided in the dental capsule that includes a cannula adapter for fitting with a custom tool port.
    [035] In some specific examples, the custom tool 10 components were printed on an Object Connex500 using VeroWhite, VeroBlack, Tango +, TangoBlack, as well as in measured mixes of VeroWhite Tango +. The objects could also be optionally printed using VeroClear, or on an SLA Viper si2 system from 3D Systems, using Accura 60 or Clearview. VeroBlack represents a rigid material and TangoBlack an elastomeric material, both of which block actinic radiation. Accura 60, Veroclear and VeroWhite represent rigid materials, and Tango + an elastomeric material, all of which transmit actinic radiation. Tango + can also be mixed with rigid materials from the “Vero family” to obtain intermediate durometers. The deformability of elastomeric materials allows for better compliance, as well as better release mechanics. The material can optionally be selected to facilitate the curing of a dental restoration material within a mold cavity of the custom tool 10.
    [036] Production can optionally include other steps such as curing, for example, in a UV chamber, cleaning, for example, in alcoholic solution, polishing, coating and / or assembly of various components, such as assembly of the portion articulated from the occlusal portion 50 to the lingual portion 30. The printed custom tool 10 can be pressed into the uncured dental restoration material to form the occlusal anatomy. Optionally, the constructed fracture lines can be included in the custom tool 10 to facilitate removal of the custom tool 10 from the patient's mouth.
    [037] The completed tool 10 can be used to perform dental restoration of tooth 100, including restoration of cavity 104. First, the lingual portion 30 and the facial (buccal) portion 12 can be inside a patient's mouth, so that these components that comprise the tooth 100 isolate, separate or retract the oral tissue, although the tool 100 can optionally be placed in combination with other equipment, such as a matrix band. In this example, cavity 104 can be filled with a dental restoration material, such as FILTEK Supreme Ultra Universal Restorative, available from 3M Saint Paul, Minnesota, with an amount slightly greater than the cavity volume of cavity 104. The occlusal portion 50 can be closed by rotating around the joint and fully seated, thus transferring the details of the occlusal surface 52 to the dental restoration material 105 (Figure 6) inside the cavity 104. In this way, the occlusal surface 52 of the occlusal portion 50 combines with tooth 100 to form a mold cavity that encompasses the missing tooth structure (corresponding to cavity 104) of tooth 100.
    [038] The excess of dental restoration material can be expressed through the dividing lines of the tool components by closing the joint. The dental restoration material can be cured by light using the tool, such as an XL 3000 curing lamp (photoactivator). For example, tool 10 can be formed from a material transmissive to actinic radiation. Alternatively, the molds can be filled with freshly mixed chemical cure dental restoration materials, such as 3M Concise Composite Restorative or 3M Ketac Molar glass ionomer filler, followed by sufficient incubation time in the mold to allow for complete cure. After curing, tool components can be removed from a patient's mouth, and burrs (excess) of dental restoration material can be removed with a dental scraper. Thus, the restored tooth 100 has an occlusal surface that corresponds to that of the occlusal surface 52 of the occlusal portion 50. In this way, complex surfaces can be easily formed during the repair of crown 102 of tooth 100.
    [039] In some examples, the facial portion 12, the lingual portion 30 and the occlusal portion 50 can be designed in such a way that their placement forces the separation of teeth 100, 106, and / or 108. For example, the facial portion 12, the lingual portion 30 and the occlusal portion 50 can be designed to precisely match the geometries of the teeth 100, 106, 108, except that the interproximal extensions of the gingival surfaces 22a and 22b (Figure 6) of the facial portion 12 and the lingual portion 30 may be slightly wider than the spaces between teeth 100 and 106 and between teeth 100 and 108. For example, the interproximal extensions of the gingival surfaces 22a and 22b (Figure 6) of the facial portion 12 and the lingual portion 30 can be increased in the mesial and distal directions, so that the placement of facial portion 12 and lingual portion 30 creates outward pressure on one of both teeth 106, 108 and / or pressure on tooth 100. In this way, the installation of facial portion 12 and li portion Equal 30 on teeth 100, 106, 108 can force the separation of the spaces between teeth 100 and 106 and between teeth 100 and 108.
    [040] Figures 7 to 10 illustrate a customized tool 210 for forming a dental restoration in a patient's mouth. The custom tool 210 includes a mold body with the facial portion 212 and the lingual portion 230. The facial portion 212 and the lingual portion 230 fit and combine to define the surfaces of the desired dental restoration. Figures 8 and 9 further illustrate the customized tool 210 in combination with teeth 120, 126, 128 inside a patient's mouth. The patient's mouth additionally includes gum 110. Tooth 120 includes a significant portion of missing tooth material, and may have been worn to remove deteriorated material, to facilitate dental restoration of the entire exposed surface of tooth 120. In some examples, a 3D image of the patient's mouth (or a dental impression) can be taken prior to the removal of the deteriorated material from tooth 120 as the shape of the deteriorated material can assist in the design of the custom tool 210. In the same examples or examples different, the shape of the contralateral tooth can be reflected in the software, or a design created in a crown design software, such as 3Shape CAD Design, available from 3Shape, Copenhagen, Denmark, or exocad, available from exocad GmbH, Darmstadt , Germany.
    [041] The facial portion 212 forms recesses 238 which are configured to receive protrusions 224 from the lingual portion 230 to create the snap fit connection between the facial portion 212 and the lingual portion 230.
    [042] Facial portion 212 and lingual portion 230 are configured to surround a patient's tooth. In particular, the facial portion 212 forms a personalized facial surface 214 of the tooth, the lingual portion 230 forming the personalized lingual surface 232 of the tooth. The custom facial surface 214 and the custom lingual surface 232 include custom proximal surfaces, corresponding to proximal surfaces of the tooth, as well as personalized incisal surfaces, corresponding to incisal surfaces of the tooth. The facial portion 212 and the lingual portion 230 also form personalized gingival surfaces 222a and 222b, respectively, corresponding to the gingival surfaces within the patient's mouth.
    [043] The mold body, which includes facial portion 212 and lingual portion 230, combines with tooth 120 to form a mold cavity. The mold cavity encompasses the missing tooth structure of tooth 120. By positioning the custom tool 210 on tooth 120, the dental restoration material can be positioned in the mold to assume the shape of tooth structure 120 of the missing tooth. In some examples, dental restoration material can be placed on tooth 120 prior to mounting the custom tool 210 on tooth 120. In the same or different examples, dental restoration material can be placed on surface 214 of the portion facial 212 and / or on the surface 232 of the lingual portion 230 of tooth 120 before mounting the custom tool 210 on the tooth 120. In another example, the custom tool 210 can be first mounted on tooth 120 and then the material dental restoration can be injected into the mold cavity. For example, one or both of the facial portion 212 and the lingual portion 230 may include a port configured to receive an injection of dental restoration material when the custom tool 210 is positioned over the tooth 120 to form the mold cavity.
    [044] The facial portion 212 and the lingual portion 230 are each also configured to align with the adjacent teeth inside the patient's mouth, thus facilitating precise positioning inside the patient's mouth. In particular, facial portion 212 and lingual portion 230 form personalized surfaces 240a and 240b, respectively, corresponding to the surfaces of adjacent tooth 126. Facial portion 212 and lingual portion 230 also form personalized surfaces 242a and 242b, respectively, which correspond to to the surfaces of the adjacent tooth 128. In this way, the facial portion 212 and the lingual portion 230 align with teeth 126, 128 to facilitate the precise positioning of the customized tool 210 inside the patient's mouth for the reconstruction of tooth 120.
    [045] The customized tool 210 facilitates the dental restoration of more than one tooth at the same time. As shown in Figure 8, like tooth 120, tooth 126 also includes missing tooth material over the crown of tooth 126. The custom tool 210 facilitates the reconstruction of tooth 126 coinciding with the reconstruction of tooth 120. The positioning of the tool 210 on tooth 120 and tooth 126 additionally forms a second mold cavity representing the missing tooth material on the crown of tooth 126. As described with respect to tooth 120, dental restoration material can be placed in the tooth cavity mold adjacent to tooth 126 to facilitate reconstruction of tooth 126. For example, the custom tool 210 may include a second port configured to receive an injection of dental restoration material when the custom tool 210 is positioned over tooth 120 to form the cavity mold adjacent to tooth 126. Figure 10 illustrates a repaired tooth 121 and teeth 126 and 128 inside the mouth of a tooth. aware after repair with the custom tool 210.
    [046] The custom tool 210 can be formed from a material similar to the one previously described with reference to the custom tool 10. In summary, the design and manufacturing aspects of the custom tool 210 that are already described in relation to the custom tool 10 do not are repeated in detail.
    [047] A crown preparation was cut in a patient that requires restoration of his lower right cusp, tooth 120. The prepared crown and the surrounding dentition were captured by a full arch fingerprint. The fingerprint was imported into CAD software and the image of the lower right cusp was reflected to form the target restoration format for the lower right cusp, tooth 120. The target restoration format was virtually placed in the preparation of the crown in the environment software to form the target project for the restored archway. A mold shape was digitally designed in the software to cover the shape of the lower right arch, including the lower right cusp that needs restoration, tooth 120, and adjacent teeth 126, 128. An optional filler port has been digitally subtracted from the cusp of the mold form, located in a section of the tooth to be filled in the restoration process. The filling port was located on the facial portion 212 and dimensioned to receive a tip of a compilation of commercially available dental restoration material, to allow the injection of dental restoration material into the mold cavity for tooth 120. A dividing line to divide the shape of the mold on the facial portion 212 (labial) and on the lingual portion 230 was determined and alignment features 224, 238 placed over the two portions 212, 230 to facilitate the precise and safe assembly of the physical components of the tool during the subsequent tooth restoration process.
    [048] The components in the CAD software, representing the facial portion 212 and the lingual portion 230, can be converted into a 3D point mesh file or other format to facilitate production with a 3D printer, CNC machining (computer numerical control) ), or otherwise. Production can optionally include other steps such as curing (for example, in a UV chamber), cleaning, for example, in an alcohol solution.
    [049] Figures 11 to 14 illustrate the customized tool 310 to form a dental restoration of two adjacent teeth 100, 101 in the mouth of a patient with a mold body. The impression body includes a lingual portion 312 and a facial portion 330 that fit by pressure and a sliding occlusal portion 350. The sliding occlusal portion 350 includes injection ports 354a, 354b for releasing dental restoration material into the mold cavities of the custom tool 310, which correspond to teeth 100, 101.
    [050] Figures 12 and 13 further illustrate personalized tool 310 in combination with teeth 100, 101, 106, 108 inside a patient's mouth. The patient's mouth additionally includes gum 110. Tooth 100 includes cavity 104 in the crown of tooth 100, and tooth 101 includes cavity 107 in the crown of tooth 101. As shown, cavities 104, 107 may have been previously prepared by drilling or other preparation to remove the damaged dental material to facilitate dental restoration using the 310 tool. In some examples, a 3D image of the patient's mouth can be taken before removing the deteriorated material from the teeth 100, 101, already that the shape of the damaged material can assist in the design of the custom tool 310.
    [051] The lingual portion 312 and the facial portion 330 are configured to surround the teeth 100, 101. In particular, the facial portion 312 forms personalized lingual surfaces 314, 315, with the facial portion 330 forming the personalized facial surfaces 332, 333. In addition, custom lingual surfaces, 314, 315 and custom facial surfaces 332, 333, include custom proximal surfaces that correspond to proximal surfaces of teeth 100, 101. Lingual portion 312 and facial portion 330 also form gingival surfaces 322a and 322b, respectively, which corresponds to gingival surfaces inside the patient's mouth.
    [052] Optionally, the lingual portion 312 and the facial portion 330 can be additionally configured to provide features, including custom gingival surfaces 322a and 322b representing an isolation matrix during dental restoration. In this way, the lingual portion 312 and the facial portion 330 may contain features that extend subgingivally or in the hidden interproximal space. The data for these extensions can be based on anatomical averages or patient X-ray data. The tool can incorporate elastomeric material that can be designed for an undersized fit to create an airtight seal against the variable real geometry of the patient's dentition. The materials used can also vary in their hydrophilic ability to keep water, saliva, and other fluids away from the dental structure that is being restored. Microfluidic channels, vacuum line connections and bite blocks can also be incorporated.
    [053] The occlusal portion 350 has customized occlusal surfaces 352, which correspond to occlusal surfaces of the teeth 100, 101. The lingual portion 312 and the facial portion 330 are configured to accept the sliding occlusal portion 350 of the mold body.
    [054] The lingual portion 312, facial portion 330 and occlusal portion 350 are also configured to align with adjacent teeth 106, 108, inside the patient's mouth to facilitate accurate positioning inside the patient's mouth. In particular, the lingual portion 312, the facial portion 330 and the occlusal portion 350 form the personalized proximal mesial surfaces 340a, 340b, 340c, respectively, which correspond to mesial surfaces of the distally adjacent tooth 108. The lingual portion 312, the facial portion 330 and the occlusal portion 350 also form personalized proximal mesial surfaces 342a, 342b (distal proximal surface of the occlusal portion 350, not shown), respectively, which correspond to distal surfaces of the mesially adjacent tooth 106.
    [055] The mold body, which includes the lingual portion 312, facial portion 330 and occlusal portion 350, combines with teeth 100, 101, to form two distinct mold cavities. The mold cavity surrounds the missing tooth structure of tooth 100, 101. By positioning the customized tool 310 on teeth 100, 101, the dental restoration material can be positioned in the mold cavities and take the shape of the missing tooth structure of the cavities 104, 107.
    [056] In particular, the occlusal portion 350 includes ports 354a, 354b configured to accept the injection of a dental restoration material into the mold cavities corresponding to the teeth 101, 100, respectively. After injecting the dental restoration material into the mold cavities of the custom tool 310, the press 370 can be positioned so that plugs 374a, 374b seal the filling ports 354a, 354b, respectively. Plugs 374a, 374b additionally include the bottom surfaces 372a, 372b providing defined shapes corresponding to the occlusal surfaces of the repaired teeth 101, 100. Plugs 374a, 374b have different shapes (square, round) to prevent misalignment of the press 370 with respect to the portion occlusal 350. The occlusal portion 350 additionally includes breather holes 355a, 355b to allow air and excess dental material to escape from the mold cavities as the material is injected through the filling ports 354a, 354b and as the press 370 is positioned so that plugs 374a, 374b seal filling ports 354a, 354b, respectively. Figure 14 illustrates teeth 101, 100 repaired, inside a patient's mouth, after repair with the custom tool 310.
    [057] The custom tool 310 can be formed from a material similar to the one previously described with reference to the custom tool 10 and the custom tool 210. In summary, the design and manufacturing aspects of the custom tool 310 that are already described with respect to to the custom tool 10 are not repeated in detail.
    [058] The customized tool 310 can be formed based on a digital model of a patient's teeth and mouth, which can be produced through a 3D intraoral scan, such as a multi-channel tomograph. In a particular example, the custom tool 310 can be designed digitally using CAD software, such as solid modeling software based on the digital model. The custom tool 310 is designed to fit over teeth 100, 101 (adjacent first and second molars) and over a portion of neighboring teeth 106, 108. Subsequently, the structure of teeth 100, 101, 106, 108 can be digitally subtracted from a mold block, as were the filling and vent ports (354a, 354b, 355a, 355b). Alternatively, the reverse of the dental structure can be inverted in the software to define the mold block. The doors can be located in regions of the occlusal section that correspond to regions of the teeth that would ultimately be removed in the preparation process, for example, adjacent to the mold cavities of the teeth 100, 101. The filling ports 354a, 354b can be sized to receive a tip of a compile of commercially available dental restoration material to allow injection of dental restoration material during filling. The vent ports 355a, 355b can be dimensioned with a smaller diameter than the filling ports.
    [059] The mold block design can be segmented into three sections (lingual portion 312, facial portion 330 and occlusal portion 350) to facilitate the eventual assembly of the tool components on the teeth without geometric interference. Alternatively, additional segments can be provided so that mold portions for teeth 100, 101 can be separated so that each of the lingual portion 312, facial portion 330 and occlusal portion 350 is divided into two or more components. The occlusal section was designed on the impression block, so that it was delimited on the mesial and distal sides to help align the occlusal section on the facial (buccal) - lingual assembly. Cable features (318) can be added in addition to the lingual portion 312 and the facial portion 330 to facilitate retention of the portions with a hemostat or cotton tweezers during placement of the tool.
    [060] The occlusal section may include tabs or sliding elements on the lingual and facial (buccal) side to provide precise alignment with the lingual and labial sections. An additional part, a cable section, is designed to fit with the occlusal section, as well as to seal the filling ports 354a, 354b, in such a way that the plug tip surfaces 372a, 372b can be in or in position slightly occlusal to the desired occlusal surface of the tooth restoration 100, 101.
    [061] The components in the CAD software can be converted into a 3D point mesh file or other format to facilitate production with a 3D printer, CNC machining (computer numerical control) or otherwise. Guidance marks (for example, a colored mark on the distal ends of each tool component) can be applied to the tool components to facilitate assembly. Production can optionally include other steps such as curing (for example, in a UV oven), cleaning, for example, in an alcohol solution and / or assembly of various components, polishing of dental surfaces, coating, as with a resin acrylic finish to improve the visibility of the restoration area during the injection of dental restoration material. In addition, tool component surfaces, which are expected to come into contact with dental restorative material, can optionally be coated with a release agent layer (for example, a thin layer of petroleum gel).
    [062] An example of a restoration process for teeth 100, 101, using the custom tool 310, is described below. Matrix bands were trimmed so that their occlusal-gingival heights were slightly above the height of the facial (buccal) and lingual portions after placement. The matrix bands were placed in the interproximal space in which the dental structure of the first and second molars, teeth 100, 101, had been removed. The lingual portion 312 and the facial portion 330 were mounted on teeth 100, 101 to aid isolation and to secure the matrix bands in the appropriate positions (and to help adapt the shape of the matrix bands to the contours of the teeth 100, 101 ). Due to the fact that dental preparations can be prepared at a depth greater than the maximum recommended curing depth, a base layer of dental restoration material can optionally be layered on the deep portions of the preparation and the dental restoration material photo-cured with an XL 3000 curing lamp. The occlusal portion 350 can be placed before adding a final increment of dental restoration material through ports 354a, 354b. The final increment of dental restoration material was then formed according to the desired anatomy, by injecting the dental restoration material through the tip of the compule through the filling ports 354a, 354b, while the filling process was visually monitored through the tool and on the breather ports 355a, 355b. After filling, the removable press 370 was combined with the occlusal portion 350. The final increment of the dental restoration material for both teeth 100, 101, can be photocured through tool 310, with the occlusal portion 350 and the removable press 370 at the place. After curing, tool 310 was removed from the patient's mouth and matrix bands removed to provide a molded restoration including well-formed contacts. If necessary, burrs (excess) of dental restoration material can be removed, for example, with a dental scraper.
    [063] Figures 15 to 18 illustrate a custom tool 410 for forming dental restorations of two adjacent teeth 100, 101 in a patient's mouth, configured to provide separation of adjacent teeth 100, 101, 106, 108 during restoration. The custom tool 410 includes a mold body with facial portion 430 and lingual portion 412 that fit under pressure, as well as a sliding occlusal portion 450. The sliding occlusal portion 450 includes injection ports 454a, 454b for releasing dental restoration material for the mold cavities of the custom tool 410, which correspond to teeth 100, 101.
    [064] The custom tool 410 is substantially similar to the custom tool 310, except that the geometries of lingual portion 312, facial portion 330 and occlusal portion 350 are designed to provide separation of adjacent teeth 100, 101, 106, 108 during restoration, instead of adapting exactly to the positions of teeth 100, 101, 106, 108 inside the patient's mouth. In this way, the custom tool 410 can facilitate tooth separation without the use of matrix bands or separate wedges, as described with reference to the custom tool 310 or as normally practiced in the conventional direct restoration process.
    [065] Figures 16 and 17 further illustrate personalized tool 410 in combination with teeth 100, 101, 106, 108 inside a patient's mouth. The patient's mouth additionally includes gum 110. Tooth 100 includes cavity 104 in the crown of tooth 100, and tooth 101 includes cavity 107 in the crown of tooth 101. As shown, cavities 104, 107 may have been previously prepared by drilling or other preparation to remove the damaged dental material to facilitate dental restoration using the 410 tool. In some examples, a 3D image of the patient's mouth can be made before removing the deteriorated material from the teeth 100, 101, already that the shape of the damaged material can assist in the design of the 410 custom tool.
    [066] The lingual portion 412 and the facial portion 430 are configured to surround the teeth 100, 101. In particular, the facial portion 412 forms personalized lingual surfaces 414, 415, with the facial portion 430 forming the personalized facial surfaces 432, 433. In addition, custom lingual surfaces, 414, 415 and custom facial surfaces 432, 433, include custom proximal surfaces that correspond to proximal surfaces of teeth 100, 101. The lingual portion 412 and the facial portion 430 also form surfaces. personalized gingival sections 422a and 422b, respectively, which correspond to gingival surfaces inside the patient's mouth.
    [067] Optionally, the lingual portion 412 and the facial portion 430 can be additionally configured to provide features, including custom gingival surfaces 422a and 422b representing an isolation matrix during dental restoration. In this way, the lingual portion 412 and the facial portion 430 may contain features that extend subgingivally or in the hidden interproximal space. The data for these extensions can be based on anatomical averages or patient X-ray data. An elastomeric component that can be designed for an undersized fit to create a hermetic seal against the variable real geometry of the patient's dentition. The materials used can also vary in terms of hydrophilic ability to keep water and saliva away from the dental structure being restored. Microfluidic channels, vacuum line connections and bite blocks can also be incorporated.
    [068] The occlusal portion 450 has customized occlusal surfaces 452, which correspond to occlusal surfaces of teeth 100, 101. The lingual portion 412 and the facial portion 430 are configured to accept the sliding occlusal portion 450 of the mold body.
    [069] The lingual portion 412, facial portion 430 and occlusal portion 450 are also configured to align with adjacent teeth 106, 108, inside the patient's mouth to facilitate accurate positioning inside the patient's mouth. In particular, the lingual portion 412, the facial portion 430 and the occlusal portion 450 form the personalized proximal mesial surfaces 440a, 440b, 440c, respectively, which correspond to mesial surfaces of the distally adjacent tooth 108. The lingual portion 412, the facial portion 430 and the occlusal portion 450 also form custom proximal distal surfaces 442a, 442b (distal proximal surface of the occlusal portion 450, not shown), respectively, which correspond to distal surfaces of the mesially adjacent tooth 106.
    [070] The mold body, which includes the lingual portion 412, facial portion 430 and occlusal portion 450, combines with teeth 100, 101, to form two distinct mold cavities. The mold cavity surrounds the missing tooth structure of tooth 100, 101. By positioning the custom tool 410 on teeth 100, 101, the dental restoration material can be positioned in the mold cavities and take the form of the missing tooth structure of the cavities 104, 107.
    [071] In particular, the occlusal portion 450 includes ports 454a, 454b configured to accept the injection of a dental restoration material into the mold cavities corresponding to the teeth 101, 100, respectively. After injecting the dental restoration material into the mold cavities of the custom tool 410, the press 470 can be positioned so that the plugs 474a, 474b seal the filling ports 454a, 454b, respectively. Plugs 474a, 474b additionally include the lower surfaces 472a, 472b providing defined shapes corresponding to the occlusal surfaces of the repaired teeth 101, 100. The occlusal portion 450 additionally includes vent holes 455a, 455b to allow air and excess dental material escape from the mold cavities as the material is injected through the filling ports 454a, 454b and as the press 470 is positioned so that the plugs 474a, 474b seal the filling ports 454a, 454b, respectively. Figure 18 illustrates teeth 101, 100 repaired, inside a patient's mouth, after repair with the custom tool 410.
    [072] The custom tool 410 can be formed from a material similar to the one previously described with reference to the custom tool 10 and the custom tool 210. In summary, the design and manufacturing aspects of the custom tool 410 that are already described with respect to custom tool 10 and custom tool 210 are not repeated in detail.
    [073] The customized tool 410 can be formed based on a digital model of a patient's teeth and mouth, which can be produced through a 3D intraoral scan, such as a multi-channel tomograph. In a particular example, the custom tool 410 can be designed digitally using CAD software, such as solid modeling software based on the digital model. The custom tool 410 is designed to fit over teeth 100, 101 (adjacent first and second molars) and over a portion of neighboring teeth 106, 108. Unlike the custom tool 310, the scan CAD model for the custom tool 410 it was digitally segmented in the proximal planes to be restored and the resulting segments were each displaced by 100 microns to produce a gap between the contacts of the teeth 100, 101, 106 and 108. Subsequently, the dental structure of the teeth 100, 101, 106, 108, as modified to include gaps between the teeth, can be digitally subtracted from a mold block, as were the filling and vent ports (454a, 454b, 455a, 455b). The doors can be located in regions of the occlusal section that correspond to regions of the teeth that would ultimately be removed in the preparation process, for example, adjacent to the mold cavities of the teeth 100, 101. The filling ports 454a, 454b can be sized to receive a tip of a compile of commercially available dental restoration material to allow injection of dental restoration material during filling. The vent ports 455a, 455b can be dimensioned with a smaller diameter than the filling ports.
    [074] The mold block design can be segmented into three sections (lingual portion 412, facial portion 430 and occlusal portion 450) to facilitate the eventual assembly of the tool components on the teeth. The dividing line between the lingual portion 412 and the facial portion 430 in the interproximal regions was projected at an angle to the arcade line. This allows that, when the "wedge" portions come into contact, they are overlapped in the contact area, reducing the risk of burrs during filling. As a secondary measure, the interproximal “wedge” portions of the lingual portion 412 and facial portion 430 have been digitally extended to create a 500-micron interference. Due to the finite resolution of the printing device used for manufacturing, there may be a loss of feature fidelity, as the sizes are reduced to zero (as in the case of a wedge, or knife edge). The extent of the "wedge" interproximal components can compensate for this "underprint" observed during physical production.
    [075] The occlusal section was designed on the impression block, so that it was delimited on the mesial and distal sides to help align the occlusal section on the facial (buccal) - lingual assembly. Cable features (418) can be added in addition to the lingual portion 412 and the facial portion 430 to facilitate retention of the portions with a hemostat or cotton tweezers during placement of the tool.
    [076] The occlusal section may include flaps or sliding elements on the lingual and facial (buccal) side to provide precise alignment with the lingual and labial sections. An additional part, a cable section, is designed to fit with the occlusal section, as well as to seal the filling ports 454a, 454b, such that the plug tip surfaces 472a, 472b can be in or in position slightly occlusal to the desired occlusal surface of the tooth restoration 100, 101.
    [077] The components in the CAD software can be converted into a 3D point mesh file or other format to facilitate production with a 3D printer, CNC machining (computer numerical control) or otherwise. Guidance marks (ie, a colored mark on the distal ends of each tool component) can be applied to the tool components to facilitate assembly. Production can optionally include other steps such as curing, for example, in a UV oven, cleaning, for example, in alcohol solution and / or assembly of various components, polishing of dental surfaces, coating, as with a resin acrylic finish to improve the visibility of the restoration area during the injection of dental restoration material. In addition, tool component surfaces, which are expected to come into contact with dental restorative material, can optionally be coated with a release agent layer (for example, a thin layer of petroleum gel).
    [078] An example of a restoration process for teeth 100, 101, using the custom tool 410, is described below. The lingual portion 412 and the facial portion 430 were mounted on the teeth 100, 101 to aid in isolation, to slightly separate the teeth, and to create a matrix between the teeth. Due to the fact that dental preparations can be prepared at a depth greater than the maximum recommended curing depth, a base layer of dental restoration material can optionally be layered on the deep portions of the preparation and the dental restoration material photo-cured with an XL 3000 curing lamp. The occlusal portion 450 can be placed before adding a final increment of dental restoration material through ports 454a, 454b. The final increment of the dental restoration material was then formed according to the desired anatomy, by injection of the dental restoration material through the tip of the compule through the filling ports 454a, 454b, while the filling process was visually monitored through the tool and on the vent ports 455a, 455b. After filling, the removable press 470 was combined with the occlusal portion 450. The final increment of the dental restoration material for both teeth 100, 101, can be photocured using tool 410, with the occlusal portion 450 and the press removable 470 in place. After curing, tool 410 was removed from the patient's mouth and matrix bands removed to provide a molded restoration including well-formed contacts. If necessary, burrs (excess) of dental restoration material can be removed, for example, with a dental scraper.
    [079] Figures 19 to 22 illustrate the customized tool 510 to form a dental restoration inside the mouth of a patient with a mold body that includes a facial portion 530, braces 580a, 580b that hold the lingual and facial portions together, a sliding occlusal portion 550 and a wedge 590 to facilitate separation of adjacent teeth during restoration. Figures 20 and 21 further illustrate the customized tool 510 in combination with teeth 100, 106, 108 inside a patient's mouth. Tooth 100 includes cavity 104 in the crown of tooth 100. As shown, cavity 104 can be a carious lesion on tooth 100 previously prepared through drilling or other preparation to remove damaged dental material and facilitate dental restoration with the use of tool 510. The patient's mouth additionally includes gum 110. The lingual portion 512 is configured to be attached to the facial portion 530 by means of clips 580a, 580b. The lingual portion 512 and the facial portion 530 are configured to surround tooth 100 within the patient's mouth. In particular, the lingual portion 512 forms a personalized facial surface 514 of the tooth, the facial portion 530 forming the personalized lingual surface 532 of the tooth.
    [080] In addition, the custom lingual surface 514 and the custom facial surface 532 include custom proximal surfaces that correspond to proximal surfaces of tooth 100. The lingual portion 512 and facial portion 530 also form personalized gingival surfaces 522a and 522b, respectively , which correspond to gingival surfaces 110 inside the patient's mouth. The occlusal portion 550 includes the customized occlusal surface 552, corresponding to occlusal surfaces of tooth 100.
    [081] The mold body including the lingual portion 512, the facial portion 530 and the occlusal portion 550 combines with tooth 100 to form a mold cavity. The mold cavity covers the cavity 104 in the crown of tooth 100. By positioning the customized tool 510 on tooth 100, the dental restoration material can be positioned in the mold and take the form of the missing tooth structure of cavity 104.
    [082] The lingual portion 512 and the facial portion 530 are also configured to align with adjacent teeth 106, 108 inside the patient's mouth to facilitate accurate positioning inside the patient's mouth. In particular, the lingual portion 512 and the facial portion 530 form personalized proximal mesial surfaces 540a and 540b, respectively, corresponding to mesially distal surfaces of the distally adjacent tooth 108. The lingual portion 512 and the facial portion 530 also form personalized proximal distal surfaces. 542a and 542b, respectively, corresponding to distal surfaces of the mesially adjacent tooth 106. Figure 22 illustrates the repaired tooth 100, as well as the tooth 101 inside a patient's mouth, after repair with the customized tool 510.
    [083] The customized tool 510 can be formed based on a digital model of a patient's teeth and mouth, which can be produced through a 3D intraoral scan, such as a multi-channel tomograph. In a particular example, the custom tool 510 can be designed digitally using CAD software, such as solid modeling software based on the digital model. The custom tool 510 has been designed to fit over tooth 100, the tooth to be restored (a first molar), as well as portions of adjacent teeth 106, 108. To design the components of the custom tool 510, a virtual mold block can be created based on the digital model and segmented into the mold components, in this example, the lingual portion 512, the facial portion 530 and the occlusal portion 550.
    [084] The components in the CAD software can be converted into a 3D point mesh file or other format to facilitate production with a 3D printer, CNC machining (computer numerical control) or otherwise. Production can optionally include other steps such as curing, cleaning, polishing, and / or coated with a finishing resin and / or release agent, as previously described.
    [085] The completed tool 510 can be used to perform dental restoration of tooth 100. First, a wedge 590 can be inserted into a custom channel to create space between teeth 100, 106, and / or teeth 100, 108, and, optionally, to assist in sealing the gingival portion of the matrix. Unlike standard matrix systems, the custom design of the 510 tool allows space creation and sealing aspects to be controlled independently. Optionally, the lingual portion 512 and the facial portion 530 can be designed with a custom-shaped slot that allows a metal sheet or plastic matrix to be inserted from the occlusal portion to ensure a personalized shape and a burr-free contact point between 100, 106, 108.
    [086] The base of the dental cavity can optionally be coated with liner / adhesive in increments to avoid layers that exceed the permissible thickness for the application of a dental restoration material. The last increment of material can be placed directly on the tooth, inside the customized tool 510, or alternatively placed injected into an entrance door after the customized tool 510 is positioned on tooth 100. The dental restoration material can then be healed. Removing the custom tool 510 can be facilitated by coating the custom tool 510 with a release agent (eg, petroleum gel, alcohol, silicone, lecithin, etc.) prior to placement by manufacturing main sections of the custom tool 510 with detachable or low surface energy materials and / or by creating tension concentrators in the customized tool 510 to allow it to be broken.
    [087] In another version of the concept, various materials (for example, shade, mechanical properties) are specified for placement within the cavity. The levels of the various materials are indicated on the customized tools with multiple lines or occlusal covers can be created to form or press each layer to its desired configuration. These functionalities allow any professional to create dental restorations with layers built to improve appearance and / or function.
    [088] In another version of the concept, the restoration design was modified from the initial scan data, so that some surfaces of the optimized design are positioned below the uncut dental surface. These positions are color-coded in the custom tool to indicate to the user in a test that these areas need to be excavated before filling the tooth.
    [089] Figure 23 is a flowchart illustrating an example of a technique for forming a dental restoration in a patient's mouth. First, a professional places a mold, such as mold 10, 210, 310, 410 or 510, on a portion of a patient's tooth (602). The mold combines with the tooth to form a mold cavity that surrounds the missing tooth structure of the tooth. Then, the professional injects a dental restoration material into the mold cavity (604). The practitioner allows the dental restoration material to cure within the mold cavity to reform the tooth, which may include the application of actinic radiation to cure the dental restoration material (606). Finally, the professional removes the impression of the patient's tooth, leaving the dental restoration with a shape defined by the mold cavity on the patient's tooth (608).
    [090] Several examples have been described. Modifications to the described examples can be made in the spirit of the description. For example, custom tools can be manufactured with the initial tooth geometry or digitally optimized tooth geometry (for example, traction data and scale from dental libraries, testing on a virtual articulator). Tools can be stamped or machined. The tools can be produced from a wide range of 3D printed materials (strength, flexibility, translucency, color). Tools can include features to indicate or define the level of filling of different restoration materials (shade, level of filling, physical properties). Mold tools / sections can interlock with each other or with standard components (matrix bands). The tools can be used inside or outside the mouth. The tools can be degradable (for example, solvent / heat) to release the restoration material or to allow for lowered geometries / to reduce dividing lines. The tools can be retractable (deflated, frangible, etc.). Kits can be created from patient-specific tools and associated products and quantities (for example, adhesives, filling and polishing materials selected according to the patient's needs, and / or dentist's preferences). The tool series are used in sequence in the direct filling process, in order to control the multi-layer geometries of a dental restoration on a tooth. Dental scans can be taken in the diagnostic consultation to facilitate the manufacture of the customized tool before an appointment to perform the filling. Tools can be manufactured on site or digital scan data can be routed to a remote location for production.
    [091] These and other examples are in the scope of the following claims.
    权利要求:
    Claims (20)
    [0001]
    1. Personalized tool (10, 210, 310, 410, 510) for the formation of a dental restoration in a patient's mouth, the personalized tool FEATURED by the fact that it comprises: a mold body that provides personalized adjustment with at least one the patient's particular tooth, the mold body including a facial portion (12, 212, 330, 430, 530) that forms a facial surface corresponding to a facial surface of the tooth in particular, a lingual portion (30, 230, 312, 412, 512) separated, forming a lingual surface that corresponds to a lingual surface of the tooth in particular, and a separate occlusal portion that forms an occlusal surface that corresponds to an occlusal surface of the tooth in particular, the mold body being it is configured to match the patient's particular tooth to form a mold cavity surrounding the missing tooth structure of the particular tooth.
    [0002]
    2. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) is separable from and interlocks with the portion lingual (30, 230, 312, 412, 512).
    [0003]
    3. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the personalized tool (10, 210, 310, 410, 510) forms a proximal surface that corresponds to a proximal surface of an adjacent first tooth.
    [0004]
    4. Customized tool (10, 210, 310, 410, 510), according to claim 3, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) forms the proximal surface, on which the proximal surface corresponds to the proximal surface of the first adjacent tooth.
    [0005]
    5. Customized tool (10, 210, 310, 410, 510), according to claim 3, CHARACTERIZED by the fact that the lingual portion (30, 230, 312, 412, 512) forms the proximal surface, on which the proximal surface corresponds to a second adjacent tooth.
    [0006]
    6. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530), lingual portion (30, 230, 312, 412, 512), and the occlusal portion (50, 350, 450, 550) are all customized to fit around the particular tooth.
    [0007]
    7. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530), lingual portion (30, 230, 312, 412, 512), and occlusal portion (50, 350, 450, 550) are based on three-dimensional scanning data of the patient's mouth.
    [0008]
    8. Customized tool (10, 210, 310, 410, 510), according to claim 7, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530), lingual portion (30, 230, 312, 412, 512), and occlusal portion (50, 350, 450, 550) are produced by three-dimensional printing.
    [0009]
    9. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial surface and the lingual surface together form an internal surface that corresponds to an external surface of the tooth in before restoration.
    [0010]
    10. Customized tool (10, 210, 310, 410, 510), according to king-vindication 1, CHARACTERIZED by the fact that it also comprises a dental restoration material located inside the mold cavity.
    [0011]
    11. Personalized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the personalized tool forms a gingival surface that corresponds to the gingiva around the particular tooth.
    [0012]
    12. Customized tool (10, 210, 310, 410, 510), according to claim 11, CHARACTERIZED by the fact that the customized tool retracts the gum of the particular tooth for a particular tooth restoration.
    [0013]
    13. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) and the lingual portion (30, 230 , 312, 412, 512) assist in the separation of a first adjacent tooth and a second adjacent tooth from the particular tooth.
    [0014]
    14. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) and the lingual portion (30, 230 , 312, 412, 512) isolate the tooth in particular from blood or saliva.
    [0015]
    15. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) and the lingual portion (30, 230 , 312, 412, 512), are produced by CAD / CAM milling processes.
    [0016]
    16. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that it additionally includes a filling level indicator of dental restoration material for the particular tooth.
    [0017]
    17. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial surface and the lingual surface correspond to external surfaces of the tooth in particular before the restoration of the particular tooth .
    [0018]
    18. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the facial portion (12, 212, 330, 430, 530) surrounds and develops along an arc mesial and distal of the patient's mouth.
    [0019]
    19. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that it additionally comprises an element, the location of the element being selected based on the optical scanning data, the selected element a group comprising: a separation line, an injection port, an opening, a gate; a boundary line.
    [0020]
    20. Customized tool (10, 210, 310, 410, 510), according to claim 1, CHARACTERIZED by the fact that the occlusal portion (50, 350, 450, 550) is configured to detachably couple the facial portion (12, 212, 330, 430, 530) and the lingual portion (30, 230, 312, 412, 512).
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    同族专利:
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    法律状态:
    2020-05-05| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-08| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: A61C 13/107 , A61C 5/10 , A61C 13/00 , A61C 13/20 Ipc: A61C 13/00 (2006.01), A61C 13/09 (2006.01), A61C 1 |
    2020-12-22| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-02| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/12/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462089731P| true| 2014-12-09|2014-12-09|
    US62/089,731|2014-12-09|
    US201562128889P| true| 2015-03-05|2015-03-05|
    US62/128,889|2015-03-05|
    PCT/US2015/064195|WO2016094272A1|2014-12-09|2015-12-07|Dental restoration molding techniques|
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