• 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 invention relates to a two-part dental implant, consisting of an implant body (2) and a connectable to the implant body abutment member (3), each of ceramic material, wherein between the mounting member and the implant body, a connecting element (12) for releasably fixing the structural member to the implant body is provided and for receiving and fixing the connecting element within the implant body, a blind hole is provided with a thread. According to the invention, it is provided that the implant body (2) is designed to be solid after a length L> = 3 mm apical to the nominal bone level (CN). The structural element (3) has on its base side facing the implant body (2) a base (B) which can be introduced into a connection region (15) forming a recess (10) in the implant body (2). The base is at least partially conical, with the cone (17) tapering in the apical direction.
    公开号:CH709257B1
    申请号:CH00827/15
    申请日:2013-11-26
    公开日:2018-02-15
    发明作者:Ulrich Volz Dr
    申请人:Ribaxx Ag；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD The invention relates to a dental implant according to the preamble of claim 1.
    Background of the Invention The invention relates to a two-part dental implant made of a ceramic material, such as zirconia.
    Basically, a distinction is made between one and two-part dental implants. The one-piece dental implants are constructed such that the apical end and the cervical end of the implant, namely the coronal part, are integrally connected together. On the other hand, in the case of two-part implants, both an implant body and a structural element (abutment) are provided which can be connected to one another. The implant body of the two-part implant is first used with appropriate application in the jawbone of the patient. There, this time has to heal, because the implant can grow without any stress. In a further step, the application of the construction element takes place, in which the structural element is connected to the implant body by a connecting element.
    A variety of two-part implants are made of metallic materials, such as titanium. The reason for this is that in particular the connection between the coronal part and the implant body is simple to design, since undercuts are provided in the connection area, which prevent twisting of the coronal part of the structural element relative to the implant body. In addition, screws can be provided as connecting elements, which extend far into the implant body. Despite the small wall thickness, caused by the inner bore for receiving the connecting element in the implant body, the necessary breaking strength according to EN ISO 14 801: 2007 (D) is given.
    According to EN ISO 14 801: 2007 (D), the implant must be clamped in a holder at a defined angle to a vertical impact load, such that the clamping point is located at a distance of 3 mm apically from the defined nominal bone level , In the following, this position is described as test point, test point or test level. The nominal bone level - or as it is defined in the regulation as the nominal bone margin - is usually given by the manufacturers in each case. In many dental implants, it is known that the bone margin regresses apically to a static level after implantation of the implant. The distance of 3 mm was therefore set to represent a typical case of bone loss and thus an extreme burden on the implant.
    If the nominal bone level is not specified by the manufacturer, according to EN ISO 14 801: 2007 (D) the most unfavorable case is to be assumed. The most unfavorable case is then to be simulated in such a way that the implant body is clamped in the place where it is most likely that the bone will reform in the case of an inserted implant.
    The nominal bone level is an indication on the implant, which is preferably to bring in the inserted state congruent with the actual bone level. It is a suggestion of the manufacturer, how deep the user should put the implant in the bone. As a rule, the nominal bone level is to be set at the point where the fine or micro-thread begins and extends in the apical direction and at the same time the point or plane at which the bone of the jaw should begin when inserted.
    In a dental implant made of ceramic other requirements in terms of production and also the implementation are given. In particular, the wall thicknesses can not be made sufficiently thin, since the fracture stability is no longer present.
    Therefore, for example, from DE 10 2008 020 818 A1 describes a two-part dental implant, which consists of ceramic material. In this case, the implant body of the implant on a post-like training, via which a screw-in torque is transferable. This insertion torque is therefore necessary to screw the implant body into the jawbone of a patient. The abutment is designed to receive this post. For this purpose, a corresponding recess is provided in the direction of the implant body in the structural element, which receives the structural element in a form-fitting manner. Construction element and implant body are connected by a pin. The pin is preferably cylindrical and is glued to both the structural element and the implant body.
    From WO 2009/149 881 A1 an implant is known which also has a two-part design. The implant body of the implant is designed such that it has a thread in the apical area, whereas a fine or micro thread is provided in the cervical area. The thread in the apical area is intended for cooperation with the bone, whereas the fine and micro threads have little or no compression effect and are therefore designed for interaction in the soft tissue area. On its cervical side in the coronal region, the implant body has a shaped element which serves to receive a structural element. For this purpose, the structural element has a correspondingly shaped recess in order to be able to be placed on the structural element. For a fixed connection, it is necessary that the structural element is fixed on the implant body. For this purpose, in the implant body is provided centrally with respect to its longitudinal extent from the cervical side a blind hole, which serves to receive a connecting element for the structural element. The connecting element, usually a screw, extends from the structural element through the structural element into the implant body and is fixed there by the blind bore and a thread provided in the blind hole. The forces, in particular chewing forces, are thereby transmitted from the structural element via the connecting element into the implant body. For these reasons, it is imperative that the connection of the structural element with the implant body and thus with the connecting element is stable. To achieve this, a necessary over a longer distance recording of the connecting element is expedient, so that a good force is present in the implant body. As a rule, the bore for receiving the connecting element extends far beyond the nominal bone level deep into the region of the implant body in which the apical thread is already arranged.
    Also WO 2013/118 101 A1 shows a two-part implant with a micro- and a large thread (compared to the micro-thread greater thread depth), which also includes a connecting element for fixing and fixing an attachable to an implant body of the implant construction element. In this case, a connecting element is proposed which attaches centrically and screw-like connecting the structural element with the implant body. The connecting element extends into the implant body via a centrally arranged blind bore and ends in the region in which the micro-thread is arranged.
    From WO 2012/161 356 A1 a two-part dental implant is known which comprises an implant body which is suitable for receiving a structural element. The implant body has a continuous external thread, over the endostral length of which a constant pitch is provided. In addition, a receiving area for receiving the building element is provided at the coronal end, wherein a blind hole is provided centrally within the implant body at the bottom of the receiving area. This blind hole is suitable for receiving a connecting element connected to the construction element. To produce the two-part implant, the structural element is guided as a whole in the receiving area and then screwed there by a rotary motion.
    From WO 2006/035 011 A1, a two-part dental implant is known, the implant body has both a micro-as well as a suitable for screwing into the bone thread. In addition, a receiving area for a structural element is provided. The receiving area has at its base extending in the apical direction on a blind hole, which serves to receive a connecting element, which in turn serves to secure the introduced into the receiving area structural element.
    DISADVANTAGES OF THE PRIOR ART One of the major disadvantages of the prior art in ceramic embodiments of two-part dental implants is that the connection of the structural element and the implant body is not reversible. As already explained in the prior art, the structural element and implant body are glued together in many embodiments, so that a non-detachable connection between the two elements is formed. Alternatives which have also already been described in the prior art have as a connecting element a screw element in such a way that the connecting element extends through the structural element into the implant body and thus provides a detachable connection between the structural element and the implant body.
    Another major disadvantage of the prior art is that the connection between the structural element and the implant body must absorb forces, since the structural design of the connection region between the implant body and the structural element forwards forces to the connecting element. As connection connecting elements, for example in training of screws or pins are proposed, which centrally penetrate the structural element and are fixed in the implant body. As a result, it is necessary for the connection element to protrude far into the implant body. As a result, it is again necessary, in particular in the case of ceramic embodiments of the implant body, for the wall thickness of the implant body to be sufficiently designed to prevent an unwanted breakage. As a result, the production of the implant body is complicated. For design reasons, it is therefore necessary for the bore required for the connecting element to extend beyond the nominal bone level provided for in EN DIN ISO 14 801: 2007 (D) plus 3 mm (test point). This means that all two-part implants, which have a pin or screw connection, at the test site, ie in the fracture-prone area, have an internal cavity and thus already constitute a latent risk of breakage due to the smaller wall thickness and the associated lack of stability.
    To reduce the latter, it is provided in the implants, in these areas in which the implant body is hollow to set a small thread depth, so that a further weakening of the walls is avoided. However, this is not wanted, since in itself, due to the bone compression to be applied, a large thread depth would have to be necessary.
    In addition, an increased risk of breakage is always given. In case of appropriate breakage, explantation is the inevitable consequence due to the non-re-solvability of the connection between the structural element and the implant body.
    Object of the invention The object of the invention is to form a two-part dental implant of predominantly ceramic material such that a Wiederlösbarkeit between the structural element and the implant body of the dental implant is possible and that the risk of breakage is reduced in the mounted state compared to the prior art , Solution to the Problem The object is achieved by a two-part dental implant according to claim 1.
    ADVANTAGES OF THE INVENTION The basic idea of the invention is to design the implant body in such a way that, starting from the nominal bone level predetermined by the manufacturer, it is made solid in the apical direction after a length greater than or equal to 3 mm. This site also complies with the test site according to EN ISO 14 801: 2007 (D) for testing the breaking strength of implants. This means that the implant is maximally solid at the test point of the highest risk of breakage defined by the standard. Massive means that the cross-section at this point or the area has no cavity.
    If no nominal bone level is specified, appropriate assumptions can be made in accordance with EN ISO 14 801: 2007 (D). If it is still not possible to define an exact nominal bone level, the depth of the blind bore for receiving the connecting element will be used in the present case as a substitute. This is designed such that it extends from the receiving region of the structural element apically in the implant body. In embodiments known from the prior art, the blind bore is elongated and extends over several millimeters, even beyond the region of the implant body which is at risk of fracture. Therefore, this is at least reduced in cross-section, not solid and thus formed at least partially hollow in this area. The embodiment according to the invention provides that the blind hole for receiving and fixing the connecting element does not extend into the fracture-endangered area. It is advantageously very short and takes up the connecting element with few threads. Advantageously, the blind hole is so long and thus suitable to receive four threads of the connecting element. In itself, 2.5 threads are sufficient to provide the necessary stability, as only deduction forces acting on the mounting element, must be recorded.
    Regardless of whether the number of threads and thus the dimensioning of the blind hole for receiving the connecting element or the test limit of EN ISO 14801: 2007 (D) is used, is achieved by the solution that the implant in the fracture-prone area formed solid is and has no cavity at this point.
    Advantageously, at the test site, i. 3 mm apically below the nominal bone level (CN) the core diameter 3.72 mm or the outer diameter 3.8 mm of the implant body. This area may for example have a micro-thread, the thread depth is small, for example, 0.01 mm. Micro threads can have a thread depth up to 0.1 mm. An advantageous development provides that the core diameter is 3 mm apically below the nominal bone level at least 3.5 mm.
    Another essential advantage of the invention is that the connecting element between the structural element and the implant body is formed such that a detachable connection of the two elements, namely the structural element and the implant body is possible. This is achieved in that the construction element consists of ceramic and thus has an extremely high modulus of elasticity with correspondingly high hardness. If a high accuracy of fit is provided, the result is a "hard-in-hard" connection, so that the forces occurring on the structural element are transferred directly to the implant body, without the corresponding connecting element is mechanically heavily loaded. This makes it possible for the connecting element to be short and detachable. The connecting element, usually in the form of a screw, has the function of fixing the structural element to the implant body.
    In order to avoid loosening of the connecting element within the arrangement, may preferably be provided to form the screw formed as a connecting element incongruent to the thread within the implant body. This is particularly possible if the connecting element consists of plastic. The incongruence leads to a cold weld being produced between the screw and the implant body in addition to the cutting into the connecting element (the implant body and its thread are harder), so that a firm fit of the connecting element is ensured.
    In order to solve such a connection, it is necessary to drill out the existing plastic connecting element. In order not to damage the bore with the thread of the implant body and therefore to avoid explantation, a Ausbohrhilfe is provided which can be placed in place of the structural element and serves as a guide and stop. Thus, the connecting element can be easily drilled out and then a new connecting element can be provided. The drill is preferably dimensioned smaller in diameter than the diameter of the
    Connecting element. This causes the core of the connection element to be drilled out and the threads, which are formed in themselves and partially cold-welded, then fall out of the thread depths of the implant body.
    Alternatively, a connecting element can be selected, which also consists of ceramic. For this purpose, it is necessary that the threads are formed congruent. Alternatively, it is also possible to choose a connecting element whose thread is congruent with that within the implant body.
    In order to enable a better fit between the structural element and the implant body, it is provided that the base of the structural element can be inserted into a corresponding recess in the implant body, such that the base has a corresponding anti-rotation. It is conical, with the cone tapering in the direction of the implant body. Corresponding inner wall design in the implant body is also provided to ensure a fit accuracy.
    In conjunction with the anti-rotation and the cone arises in this embodiment, an optimal force distribution of the implant, such that the compound can absorb forces even without screw, pin or other fasteners. A friction between the structural element and the implant body is thus no longer given. It is therefore sufficient for the connecting element to extend preferably between 0.5 mm and 1.2 mm long into the ceramic thread of the implant body, since only the withdrawal forces, which are very small in the mouth, have to be compensated. Pressure, leverage and shear forces are completely compensated by the connection between the structural element and the implant body. Alternatively, the connecting element may have a length of up to 5 mm.
    This embodiment works better compared to titanium implants because titanium implants always show a certain mobility when force is introduced through the titanium or ceramic superstructure, whereby stresses on the connecting element, resulting in fractures of the connecting element or in loosening can express accordingly. Therefore, in titanium implants, the fastener is made as thick as possible (limited by the outer diameter of the implant) relative to the diameter and formed as long as possible (long here means in terms of extension in the depth in the apical direction of the implant body).
    Another disadvantage is that of Zipprich et. al. (University of Frankfurt) proven pumping effect, which presses the saliva-bacteria mixture in the gap with each Zubeissen or each load from the gap in the surrounding tissue and there leads to inflammation (peri-implantitis).
    The fixation of the structural element in the implant body can be sealed by the use of a bactericidal, fungicidal or antiviral silicone. In view of this, however, there is no need, since no "pumping out" of the bacterial saliva mixture from the gap, since the connection between the structural element and the implant body "hard-in-hard" is formed. As a result, no friction or elasticity is present, which can normally perform the movements. The implant is also designed such that the base of the structural element sits exclusively on the upper edge of the receiving area for the base on the implant body.
    To be able to deflect the forces even better or to be able to transfer them to the implant body, the base of the structural element is conical. The base is designed conical so that it rests at least at the top of the coronal side pointing. Whereas in the apical direction a concern is avoided. The aim here is that the construction element rests on the topmost area to the coronal side pointing, so that outward no gap or the like remains in the saliva mixtures or leftovers can get.
    To achieve this, it is advantageously provided to make the cone incongruent with respect to the conical design of the implant body in the apical direction, in which the cone of the structural element tapers faster than the cone of the implant body. In addition, the anti-rotation device provided in the apical direction is designed in such a way that it does not touch the implant body. This ensures that the cone on the upper edge of the implant body very certainly comes to rest, so that any gap formation is avoided.
    The conical training is not mandatory. Alternatively, a cylindrical design can also take place with a conical approach, with the approach coming to bear against the upper edge of the implant body.
    The rotation lock itself can be designed, for example, in plan view as Torx silhouette or other wave-like configuration. The rotation can also be designed differently, so that a rotation about its own axis is not possible. Due to the configuration, an insertion of the structural element in different positions is possible, whereas at the same time a corresponding rotation is given.
    Due to lack of movement between the mounting element and the implant body and no Verbindungselement- or screw loosening can be done because no load on the connecting element.
    Due to the extremely short connecting element, the implant is solid 3 mm below the nominal bone level in the apical direction. At the test site, the diameter in the core is at least 3.5 mm, preferably approximately 3.72 mm to 3.80 mm in size, so that the implant body in the endangered area is massive and thus the risk of fracture is very low.
    Due to the design "hard-in-hard", it is possible to form the connecting element as described above, short. As fasteners, for example, screw, pin or similar equivalent connec tion elements can be provided. The length of the connecting element can be between 0.5 mm and 5 mm. The shorter the connecting element, the more massive the implant body, the higher the internal stability of the implant body and the lower the fracture risk.
    Further advantageous embodiments will become apparent from the following description, the drawings and claims.
    Drawings [0041] It shows:
    1 shows a section through the two-part implant with the connecting element.
    FIG. 2 shows a side view of the implant according to FIG. 1 partly in section; FIG.
    Fig. 3 is a plan view of the base of the building element;
    4 shows a side view of an embodiment of the construction element according to the invention;
    Fig. 5 is a perspective view of the inventive metal-free connection element for a two-part dental implant.
    Description A two-part implant 1 is shown in FIG. The two-part implant 1 consists of an implant body 2 and a placement on the implant body 3, which is also called abutment. Both the implant body 2 and the structural element 3 may consist of a ceramic material, for example zirconium oxide.
    The implant body 2 has at its apical end a thread 4 which extends in the cervical direction. It extends from the apical direction starting in cervical (in the illustrated embodiment about 5.5 mm long) and is designed such that the thread depth 5 of the thread 4 in the cervical direction - starting from an extremum decreases. To the extremum, the thread depth increases from the apical tip.
    The implant body 2 has a core body 7 which has a conical shape 8 in the apical direction. At the apical tip of the implant body 2 has a diameter of about 0.8 mm, whereas in the cervical direction at a distance of 5.5 mm 3 mm has a core diameter.
    The largest diameter of the implant body 2 is in the embodiment shown here preferably up to 3.8 mm, in particular at the point 3 mm measured from the predetermined by the manufacturer nominal bone level KN in the apical direction of the core diameter of the implant body 2 up to 3.7 mm is. In the cervical direction, the implant body 2 continues to increase in relation to its diameter. This has the advantage that a sufficient recess 10 can be provided, with a corresponding wall thickness 11 in order to be able to absorb the structural element 3 in a fracture-proof manner with a corresponding connecting element 12. In this case, the connecting element 12 extends a maximum of 3-4 mm, starting from the coronal end of the implant body. 2
    A preferred and particular embodiment provides that the implant body 2, starting from the nominal bone level KN L mm in the apical direction is fully solid and has no cavity. L corresponds to a length of greater and / or equal to 3 mm. In particular, the implant body 2 is solid at the point according to DIN EN ISO 14801, namely 3 mm below the nominal bone level KN.
    The structural element 3 is divided into two regions (shown for example in Fig. 4), namely a base B and a framework G. The base B occurs in connection with the implant body 2 via a corresponding connection region 15. The connection region 15 is as Recess formed within the implant body 2, such that it can accommodate the base B at least partially.
    The base B itself is initially formed conically from a projection 16 in the apical direction and has a conical shape 17. This conical shape is transformed into a cylindrical shape 18, which in turn merges into a rotation prevention device 19. The cone shape 17 is designed such that it rests on a conical shape 21 in the recess 15 of the implant body. Since the conical shape 17 tapers faster to the structural element 3 in the apical direction than the conical shape 21 of the implant body 2 or the connecting area 15, the structural element 3 rests against the upper edge 22 of the implant body 2, so that a gap formation between the structural element 3 and the implant body 2 or its connection region 15 is prevented.
    An anti-rotation device 19 is shown in Fig. 3 as a plan view. Starting from the core diameter 23, different regions 24 are reduced in core diameter. This creates a torx-like design that does not allow twisting in and against the direction of arrow 25. Alternatively, however, the rotation 19 can be designed differently. It is not limited to the embodiment shown in FIGS. 2 and 3, respectively.
    By the embodiment or configuration of the structural element with an implant body to a ceramic two-part implant is given the opportunity to provide a reversibly releasable fixation for the connecting element, without increasing the corresponding fracture risk of the implant.
    Particular embodiments such as anti-rotation, but also cone-like formations with respect to the seating of the structural element on the implant body contribute to the fact that a two-part dental implant is provided which can also use a short connecting element, such as a screw or a pin, without To provide a massive cavity formation of the implant body to have to absorb the connecting element over a corresponding length.
    4, a structural element 3 is shown. It consists of a base body 42, wherein the base body 42 is divided into two areas, namely a base B and gantry G. The base B serves to cooperate in the connecting region 15 with an implant body (Figs. 1 and 2), such that the Base B is fixed there. The base B itself has a cone 17 and an anti-rotation 19. The cone 17 runs apically and ends in anti-rotation device 19. The anti-rotation 19 has rosette-like configurations, so that a rotation of the structural element 3 in or against the direction of arrow 25 within the not shown Implant body is not possible. Between the base B and the main body G, a projection 16 is arranged. The diameter of the projection 16 is greater than that of the cone and also larger than the diameter of the framework G. This causes the underside of the projection 16 can rest on the edge of the implant body 2 pointing in the coronal direction.
    According to the invention it is now provided that the base and the framework G are made of ceramic. Zirconia or other high-strength ceramic materials can be provided as ceramic materials.
    Thus, a structural element in the construction of a structural element is provided, which makes it possible to provide a metal-free dental implant.
    In Fig. 5 the inventive metal-free connecting element 12 is shown. The connecting element 12 consists of a base body 52 which has a thread 53 on its outer circumference. At the coronal end 54, the receptacle of a tool is provided, so that a screwing of the connecting element 12 against the arrow 55 in an anchoring element or an implant body 2 is possible. The connecting element 12 is metal-free.
    As an alternative to the connecting element shown in Fig. 4 as a screw member may also be provided a pin-like element.
    The thread 53 shown in Fig. 5 is incongruent with the thread 9 (Fig. 2). The thread 9 is formed in the provided blind hole in the implant body 2 and adapted to receive the connecting element 12. The depth of the blind hole is dimensioned such that it does not extend beyond the fracture-prone area. In addition, it is designed such that it preferably has only 4 threads. More are not required for attachment of the structural element in these embodiments of the implants 1. As a rule, only 2.5 threads are sufficient.
    When screwing the connecting element 12 in the direction of arrow 55 is due to the incongruence, a solidification of the connecting element 12, so that a detachment by Schottel or Rüttelbewegung is not possible. The reason for this is that deformation or even cold welding of the connecting element results during the screwing process. An almost permanent connection is created between the implant body 2 and the structural element 3.
    LIST OF REFERENCE NUMBERS
    Two-piece ceramic implant 1 two-part implant 2 implant body 3 construction element 4 thread 5 thread depth 6 7 core body 8 conical shape
    权利要求:
    Claims (8)
    [1]
    9 thread 10 recess 11 wall thickness 12 connecting element 15 connecting area 16 shoulder 17 conical shape 18 cylindrical shape 19 anti-twist 21 conical shape / cone shape 22 upper edge 23 core diameter 24 different areas 25 arrow 42 base 52 base 53 thread 54 coronal end 55 arrow direction B base G framework KN bone level claims
    1. Two-part dental implant, consisting of an implant body and a connectable to the implant body assembly element, each of ceramic material, wherein a. between the structural element (3) and the implant body (2) a connecting element (12) for fixing and re-releasability of the structural element (3) on the implant body (2) is provided and for receiving and fixing the connecting element (12) within the implant body (2) a blind hole with a thread (9) is provided, wherein b. the implant body (2), starting from the nominal bone level (CN), is made solid in the apical direction by a length (L) greater than or equal to 3 mm, wherein c. the structural element (3) has on its base side facing the implant body (2) a base (B) which can be inserted into a connection region (15) forming a recess (10) in the implant body (2) and the base (B) of the structural element (3) is at least partially conical, in the way that the cone (17) tapers in the apical direction.
    [2]
    2. Dental implant according to claim 1, characterized in that 3 mm below the nominal bone level (CN) of the solid implant body (2) of the core diameter of the thread (9) at least 3.5 mm and / or the outer diameter of the thread (9) at least 3.7 mm is.
    [3]
    3. Dental implant according to claim 1, characterized in that the connecting element (12) on its base body (52) has a thread (53) which in the thread (9) of the implant body (2) can be screwed.
    [4]
    4. Dental implant according to claim 3, characterized in that the thread (53) of the connecting element (12) is incongruent with the thread (9) of the implant body (2).
    [5]
    5. Dental implant according to one of the preceding claims, characterized in that the connecting element (12) has a length from the value range of 0.5 mm to 5 mm.
    [6]
    6. Dental implant according to claim 1, characterized in that in the apical direction at the free end of the base (B) of the structural element (3) an anti-rotation (19) is arranged to a rotation of the structural element (3) within the implant body (6) prevent.
    [7]
    7. Dental implant according to claim 6, characterized in that the rotation lock (19) is formed in a plan view wave-like circular formation.
    [8]
    8. Dental implant according to claim 1, characterized in that in the connection region (15) of the implant body (2) a conical shape (21) for receiving the base (B) of the structural element (3) is provided, wherein the conical shape (21) within the connecting region (15) is tapered less rapidly in the apical direction than the cone (17) of the base (B) of the structural element (3).
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    同族专利:
    公开号 | 公开日
    WO2014091346A2|2014-06-19|
    WO2014091346A3|2014-10-30|
    DE212013000248U1|2015-08-12|
    WO2014091346A9|2019-01-03|
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    ITGE20080054A1|2008-06-11|2009-12-12|Alberto Rebaudi|PLANT FOR FIXING DENTAL PROSTHESES|
    CN103547233A|2011-05-23|2014-01-29|金煐载|Implant fixture|
    ITTO20120104A1|2012-02-08|2013-08-09|Twocare S R L|DENTAL PLANT OR BONE|CH711169A1|2015-06-08|2016-12-15|Dentalpoint Ag|Dentures system.|
    CH712894A2|2016-09-08|2018-03-15|Dentalpoint Ag|Dentures system.|
    US20200030062A1|2017-03-20|2020-01-30|Straumann Holding Ag|Implant system|
    法律状态:
    2021-03-15| PUE| Assignment|Owner name: UNAC HOLDING AG, CH Free format text: FORMER OWNER: RIBAXX AG, LI |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012112050|2012-12-10|
    DE102012112049|2012-12-10|
    DE102012112047|2012-12-10|
    PCT/IB2013/060419|WO2014091346A2|2012-12-10|2013-11-26|Two-piece ceramic implant|
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