DENTAL IMPLANT SYSTEM

Abstract

A dental implant system including an implant, a prosthetics component, and a fastener. The implant and the prosthetics component are configured to assume a first taper connection and a second taper connection with one another. The implant has a male connection portion of the first taper connection. The prosthetics component is placed upon the implant and when the prosthetics component is not fastened to the implant by the fastener, a tolerance region is formed between the implant and the prosthetics component. The tolerance region is configured such that on fastening with the fastener, mating connection portions of the taper connections can be pushed further into one another.

Claims

1. A dental implant system, comprising an implant for anchoring in bone tissue, a prosthetics component, which is configured to be placed onto the implant, and a fastener, which is suitable for fastening the prosthetics component to the implant, wherein the implant and the prosthetics component are configured to assume a first taper connection and a second taper connection with one another, wherein the implant comprises the male connection portion of the first taper connection, and wherein when the prosthetics component is placed onto the implant and when the prosthetics component is not fastened to the implant by the fastener, a tolerance region is formed between the implant and the prosthetics component, said tolerance region being configured such that on fastening with the fastener, mating connection portions of the taper connections can be pushed further into one another.

2. The dental implant system according to claim 1, wherein an implant-side connection portion of the first taper connection and/or an implant-side connection portion of the second taper connection is arranged at the coronal end of the implant.

3. The dental implant system according to claim 1, wherein an implant-side connection portion of the second taper connection is designed as a female connection portion, and wherein the implant-side connection portion of the second taper connection is designed as part of an implant recess.

4. The dental implant system according to claim 1, wherein an implant-side connection portion of the second taper connection is designed as a male connection portion, and wherein an implant-side connection portion of the first taper connection is arranged at the coronal end of the implant, and the implant-side connection portion of the second taper connection is arranged on a surface of the implant, which is distal to the implant axis, and wherein the implant-side connection portion of the second taper connection is arranged apically of the implant-side connection portion of the first taper connection.

5. The dental implant system according to claim 1, wherein an angle of the clamping surfaces of the first taper connection and/or of the second taper connection to the implant axis is 8 or less than 8.

6. The dental implant system according to claim 1, wherein a length of a projection of a clamping surface of the implant onto an implant axis is 1 mm at the most.

7. The dental implant system according to claim 1, wherein a tolerance region in the non-fastened state is designed as a distance between the implant and the prosthetics component in a coronal-apical direction, wherein the distance between the implant and the prosthetics component in the coronal-apical direction is at least 100 m in the non-fastened state.

8. The dental implant system according to claim 1, wherein the fastener comprises a thread, and wherein the fastener is designed as a screw.

9. The dental implant system according to claim 1, wherein the implant and/or the prosthetics component comprises structure elements that are designed as an orientation aid, a positioning aid and/or a twist protection.

10. The dental implant system according to claim 9, wherein the structure elements are designed as notches and corresponding projections, and wherein the notches and projections are designed at least essentially box-shaped, and wherein the notches and projections taper in the coronal and/or apical direction.

11. The dental implant system according to claim 9, wherein a structure element is arranged in a connection portion and/or apically of the connection portion.

12. The dental implant system according to claim 1, wherein the prosthetics component is designed as an abutment, crown or outer sleeve.

13. A method for fastening a dental implant system comprising: an implant for anchoring in the bone tissue, a prosthetics component, which is configured to be placed onto the implant, and a fastener, which is suitable for fastening the prosthetics component to the implant, wherein the implant and the prosthetics component are configured to assume a first taper connection and a second taper connection with one another, wherein the implant comprises a male connection portion of the first taper connection, and wherein when the prosthetics component is placed upon the implant and when the prosthetics component is not fastened to the implant by the fastener, a tolerance region is formed between the implant and the prosthetics component, said tolerance region being configured such that on fastening with the fastener, the male connection portion and female connection portion of the taper connections can be pushed further into one another in the fastening force direction, wherein a) the prosthetics component is placed onto the implant; and b) the prosthetics component is subsequently fastened to the implant by the fastener, wherein the male connection portions and female connection portions of the taper connections are pushed further into one another on fastening.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0140] The subject-matter of the invention is explained hereinafter in more detail by way of preferred embodiment examples which are represented in the accompanying drawings. There are shown schematically in (and not necessarily true to scale):

[0141] FIG. 1 a detail of a cross section of an implant with two taper connection portions;

[0142] FIG. 2 a detail of a cross section of an implant with a long, inner taper connection portion;

[0143] FIG. 3 a detail of a cross section of an implant and of a prosthetics component, which is placed thereon, with two taper connections and tolerance regions;

[0144] FIG. 4 a detail as in FIG. 3, wherein the prosthetics component is fastened on the implant by way of a fastening means and the tolerance regions are reduced in size;

[0145] FIG. 5 an enlarged detail of a cross section of an implant and of a prosthetics component, with a tolerance region situated therebetween,

[0146] FIG. 6 an enlarged detail of a cross section of an implant and a prosthetics component, with a tolerance region located therebetween, wherein the prosthetics component at the outside includes a long connection portion;

[0147] FIG. 7 a detail of a cross section of a dental implant system with a cemented crown;

[0148] FIG. 8 a detail of a cross section of a dental implant system with a veneered prosthetics component which is designed as an abutment, wherein the abutment includes a jacket;

[0149] FIG. 9 a cross section of an implanted dental implant system with a bone-level implant,

[0150] FIG. 10 a cross section of an implanted dental implant system with a monotype configuration;

[0151] FIG. 11 a cross section of an implanted dental implant system with a tissue-level implant with a cylindrical neck;

[0152] FIG. 12 a cross section of a further implanted dental implant system with a tissue-level implant with a tulip-shaped neck;

[0153] FIG. 13 a cross section of an implanted dental implant system with an external connection;

[0154] FIG. 14 a cross section of a further implanted dental implant system with a bone-level implant;

[0155] FIG. 15 a plan view onto an implant with structure elements, from the coronal direction;

[0156] FIG. 16 a plan view onto an implant with tapering structure elements, from the coronal direction;

[0157] FIG. 17 various box-shaped structure elements;

[0158] FIG. 18 a detail of a perspective view onto an implant recess with structure elements in a clamping surface;

[0159] FIG. 19 a detail of a cross section of an implant with a notch and a prosthetics component with a groove.

DETAILED DESCRIPTION OF THE INVENTION

[0160] FIG. 1 shows a cross section through an oral implant 10 of a dental implant system 1. The implant 10 is configured such that a prosthetics component (not shown) can be placed onto the implant 10 and be fastened to the implant 10 by a fastening means (not shown).

[0161] The implant 10, which is represented in FIG. 1, includes an implant recess 16 at a coronal end 14. The implant recess 16 includes a fastening means recess 31 for receiving a fastening means 30. The fastening means recess 31 can be designed, for example, as a thread, in order to receive a fastening means 30, which is designed as a screw.

[0162] The shown implant 10 is configured to assume a first taper connection and a second taper connection, with a prosthetics component 20. A taper connection is a clamping connection on clamping surfaces 45 with steep tapers. A known example of a taper connection is the so-called Morse taper connection. The clamping surfaces 45 can be designed, for example, essentially as lateral surfaces of general cones, thus, for example, general cylinders that taper in one direction. For example, the clamping surfaces 45 can be designed essentially as rotationally symmetrical truncated cones. A symmetrical shape of a clamping surface 45 can be interrupted for example by way of structure elements (not shown) such as notches (not shown) and projections (not shown), the elements being able to function as an orientation aid, positioning aid and/or twist (rotation) protection and are described in more detail hereinafter.

[0163] In the represented example, the implant 10 includes a connection portion 41 for a first taper connection and a connection portion 51 for a second taper connection, thus in total two steep clamping surfaces 45. In the shown example, the two clamping surfaces 45 are arranged at the coronal end 14 of the implant 10. The angle of a clamping surface 45 to the implant axis 19 can be for example 8 or less.

[0164] In the shown example, the clamping surface 45 of the implant-side connection portion 41 of the first taper connection is arranged on the implant 10 at the outside, thus on an edge of the implant 10, which is situated distally seen from the implant axis 19. In the shown cross section, this clamping surface 45 is represented as a bevelling of the coronal end 14 of the implant 10 at the upper left as well as upper right edge of FIG. 1. The clamping surface 45 can be designed, for example, as a surface of a truncated cone about the implant axis 19, the clamping surface moreover being able to include structure elements (not recognisable in the shown cross section).

[0165] In the shown example, the clamping surface 45 of the implant-side (belonging to the implant) connection portion 41 of the first taper connection is designed as a male connection portion. A male connection portion is configured to be received by a female connection portion. A male connection portion tapers in the connection direction; whereas a female connection portion widens in the connection direction. The female connection portion can exert inwardly directed forces onto the male connection portion, and therefore increase the mechanical stability of the male connection portion and/or of the parts which are adjacent thereto.

[0166] In the shown example, the clamping surface 45 of the implant-side connection portion 51 of the second taper connection is arranged on the implant 10 at the inside. Expressed more precisely, this clamping surface 45 is arranged in the implant recess 16 and forms its coronal end. In the shown cross section, this clamping surface 45 is represented as bevellings at the coronal end of the implant recess 16. This clamping surface 45 can also be designed, for example, as a surface of a truncated cone, out of which optionally notches (not recognisable in the shown cross section) can be recessed and/or onto which the projections (not recognisable in the shown cross section) can be placed.

[0167] In the shown example, the clamping surface 45 of the implant-side connection portions 51 of the second taper connection 50 are designed as a female connection portion, thus widens in the connection direction.

[0168] FIG. 2 shows a cross section similar to that of FIG. 1. In this example, the clamping surface 45 of the implant-side connection portion 51 of the second taper connection 50 is, however, lengthened on comparison to FIG. 1. In particular, the projection of the cross section of the clamping surface 45 onto the implant axis 19 is lengthened. By way of this, the surface of the clamping surfaces can be enlarged and the taper connection therefore strengthened, by which means a surface of the clamping surfaces, which is reduced by structure elements (not shown) of an orientation aid, of a positioning aid and/or of a twist (rotation) protection can be compensated.

[0169] FIG. 3 shows the cross section of the implant 10 similarly to that of FIG. 1 or FIG. 2 as well as of a prosthetics component 20, which is placed upon this. In the shown example, the prosthetics component 20 is designed as an abutment. Alternatively, the prosthetics component can be designed, for example, as a crown or outer sleeve (e.g., for a bar restoration) as can be the case, for example, with monotype implants, as is shown, for example, in FIG. 10. Very small lateral gaps 21, which are designed as vertical slots, are arranged in the implant recess 16 between the implant 10 and the abutment 20. These can be dimensioned such that the abutment 20 can be pushed into the implant 10 without a large friction resistance and the abutment 20 despite this is stable and can be inserted in the implant 10 essentially without play.

[0170] The abutment 20 includes a connection portion 42 for the first taper connection as well as a connection portion 52 for the second taper connection. A connection portion 42, 52 of the abutment can be designed in a manner corresponding to a corresponding connection portion 41, 51 of the implant 10, for example shaped at least partly as its negative.

[0171] In the shown example, the abutment-side (belonging to the abutment) connection portion 42 of the first taper connection 40, which is situated at the outside, is designed as a female connection portion and is configured to receive the implant-side connection portion 41, which is designed male. In contrast to this, the abutment-side connection portion 52 of the inner-lying second taper connection 50 is designed as a male connection portion and is received by the implant-side connection portion 51 which is designed female.

[0172] In the shown placed-on state, two tolerance distances 60 are formed between the implant 10 and the abutment 20.

[0173] One of the shown tolerance distances 60 is arranged at the coronal end 14 of the implant 10. In the cross section of FIG. 3, this tolerance distance 60 is represented as two-dimensional gaps between the lateral portions of the abutment 20 and the coronal end 14 of the implant 10, but consists of a single three-dimensional gap between the abutment 20 and the implant 10.

[0174] A further represented tolerance distance 60 is arranged at the apical end of the abutment 20.

[0175] FIG. 4 shows a dental implant system 1, including an implant 10 and a prosthetics component 20 that is designed as an abutment, similarly to those of FIG. 3, as well as fastening means 30, by way of which the abutment 20 is fastened to the implant 10. In the shown example, the fastening means 30 is designed as a screw, which engages into a fastening means recess 31 of the implant 10, which is designed as a screw thread.

[0176] The tolerance regions 60 which, similarly to the example of FIG. 3, were arranged at the coronal end of the first and second taper connection 40, 50 as well as at the apical end of the second taper connection 50 between the implant 10 and the abutment 20 have made it possible for the mating connection portions of the taper connections 40, 50 to be inserted further into one another on fastening with the fastening means 30, by which means the tolerance regions 60 have been reducedas is represented in FIG. 4. The connection between the implant 10 and the abutment 20 can be strengthened and/or the mechanical stability of the implant increased due to the arising barrel-ring effect.

[0177] By way of the combination of taper connections 40, 50 and tolerance regions 60, gaps between the implant 10 and the prosthetics component 20, in particular gaps between the clamping surfaces 45 of a taper connection 40, 50 can be reduced in size, in particular minimised. By way of this, a precise marginal seal between the implant 10 and the prosthetics component 20 and/or or a precise fit between the implant 10 and the prosthetics component 20 can be achieved.

[0178] The fastening means 30, which are designed as a screw in this example, and the prosthetics component 20as is shown in this examplecan be configured to assume a taper connection with one another. In the shown example, the prosthetics component 20 includes the female connection portion and the screw 30 the male connection portion of this connection. As is shown in this example, the apical end of the head of the screw can be designed as the male connection portion of the connection, which can be designed for example as a truncated cone which tapers in the apical direction.

[0179] FIG. 5 shows a detail of a cross section of an implant 10 and of a prosthetics component 20, which is put onto this and which is designed as an abutment, in the placed-on but non-fastened state. A tolerance distance 60 is arranged between the abutment 20 and the implant. A first taper connection 40 is arranged at the outer edge of the coronal end 14 of the implant 10. The abutment-side connection portion 42 of this first taper connection is designed in a relatively short manner: the clamping surface 45 of the abutment 20 is shorter in the connection direction than the clamping surface 45 of the implant 10. In the shown example, the connection portion 42 of the abutment 20 can be designed as a thin stabilisation ring that, for example, can be less than 1 mm wide. A shortened form of the abutment-side connection portion 42 can be used, for example, for bone-level implants. By way of this, an interference, for example between the abutment 20 and the bone (not shown), can be prevented.

[0180] FIG. 6 similarly to FIG. 5 shows a detail of a cross section of an implant 10 and of a prosthetics component 20, which is placed onto this and is designed as an abutment, in the placed-on, but non-fastened state. A tolerance distance 60 is arranged between the abutment 20 and the implant. In comparison to FIG. 5, the abutment-side connection portion 42 of this first taper connection 40 is designed in a relatively long manner: the clamping surface 45 of the abutment 20 is longer in the connection direction than the clamping surface 45 of the implant 10. The two clamping surfaces 45 can also be designed equally long. The abutment-side clamping surface 45, which is lengthened in comparison to FIG. 5, leads to an enlarged contact surface of the connection 40 and therefore improves the connection between the implant 10 and the prosthetics component 20.

[0181] FIG. 7 shows a dental implant system with an implant 10 and with a prosthetics component 20, which is placed upon this and which is designed as an abutment, in a fastened state, which has been realised by a fastening means 30. In the shown fastened state of this example, tolerance distances 60 are reduced compared to a placed-on, but non-fastened state (not shown), and by way of this the implant 10 and the abutment 20 are pushed further into one another on the two taper connections 40, 50.

[0182] Furthermore, a crown 80, which can be placed over the abutment and which serves as a denture, is shown in FIG. 7. The dental implant system can be configured for the crown 80 to be bonded oras shown in FIG. 7cemented with cement 81.

[0183] FIG. 8 shows a further example of a dental implant system in the fastened state with a crown 80. In this example too, the tolerance distances 60 are reduced compared to a placed-on, but non-fastened state (not shown). The prosthetics component 20, which is designed as an abutment in this example, includes a so-called jacket, thus an apically extending region that encompasses the implant 10 from the outside. In the shown example, the jacket extends over the implant in the apical direction from the abutment-side clamping surface 45 of the first taper connection 40. Such a jacket can be used in order to precisely define the gap between the implant 10 and the abutment 20 and to define the extent of the capping.

[0184] FIGS. 9 to 14 show examples of dental implant systems with an implant 10 that is anchored in a jawbone 4 and on which a prosthetics component 20 is fastened by way of a fastening means 30. In the shown examples, the tolerance distances 60 are reduced in size compared to a placed-on, but non-fastened state (not shown). In particular, drawn in the figures are: [0185] the enossal region 11 of the implant 10, thus that region of the implant 10 that is configured to be sunk into the jawbone 4 and to ingrow with this; [0186] the transmucosal region 12 of the implant 10 (inasmuch as existent), thus that region of the implant 10 that is configured to remain on the other side of the jawbone 4 and to be surrounded by soft tissue (not shown); [0187] the bone boundary 111 of the jawbone 4; as well as [0188] the soft tissue boundary 112 of the soft tissue (not shown).

[0189] The implant 10, which is shown in FIG. 9 is designed as a so-called bone-level implant, is therefore configured to terminate roughly level with the jawbone 4 at the bone boundary 111.

[0190] A first taper connection 40 is arranged on the implant 10 at the outside; the implant-side connection portion 41 of this first taper connection 40 is designed male. A second taper connection 50 is arranged in the implant recess 16; the implant-side connection portion 51 of this second taper connection 50 is female and is designed as a coronal end of the implant recess 16.

[0191] The implant 10 that is show in FIG. 10 is designed as a so-called monotype implant and is configured to terminate significantly beyond the soft tissue boundary 112. The shown prosthetics component 20 can be designed, for example, as a crown or outer sleeve.

[0192] A first taper connection 40 is arranged on the implant 10 at the outside; the implant-side connection portion 41 of this first taper connection 40 is designed male. The clamping surfaces 45 of this first taper connectionas is shown in FIG. 10can be designed relatively long and extend, e.g., up to the soft tissue level or even into the submucosal region. A second taper connection 50 is arranged in the implant recess 16; the implant-side connection portion 51 of this second taper connection 50 is female and is designed as the coronal end of the implant recess 16.

[0193] The implant 10 that is shown in FIG. 11 is designed as a so-called tissue-level implant and is therefore configured to terminate roughly level with the soft tissue at the soft tissue boundary 112.

[0194] A first taper connection 40 is arranged on the implant 10 at the outside; the implant-side connection portion of this first taper-connection 40 is designed male. The clamping surfaces 45 of this first taper connection 40as is represented in FIG. 11can be designed relatively short and be present in the form of a bevelling of the coronal implant end 14. The height of the bevelling, thus the length of the projection of the bevelling onto the implant axis 19 can be 1 mm at the most. The male connection portion of an implant 10 can be distanced to the enossal part, for example as shown in FIG. 11 by a flat support shoulder 18. The support shoulder 18 in the shown cross section is represented as two edges, which are parallel to the implant axis 19 and can be designed, for example, essentially as a circular cylinder. Due to the spacing, for example concerning a tissue-level implant, the advantage of an outer taper connection can be utilised and at the same time it can be ensured that the prosthetics component 20 ends at a biologically appropriate distance to the bone 4.

[0195] A second taper connection 50 is arranged in the implant recess 16; the implant-side connection portion 51 of this second taper connection 50 is female and is designed as the coronal end of the implant recess 16. As is shown in the shown example, the clamping surface 45 of a female second taper connection 50, which is arranged in a coronal end of the implant recess 16, can be designed longer in the connection direction than the clamping surface 45 of a male first taper connection 40, which is arranged at the outside.

[0196] The implant 10 that is shown in FIG. 12 is designed as a so-called tissue-level implant, thus is configured to terminate roughly level with the gums. Concerning the example, which is shown in FIG. 12, the transmucosal region 11 of the implant 10 is widened compared to the enossal region 12; this shape is also called tulip. The taper connections 40 of the example, which is shown in FIG. 12, are similar to those of the example shown in FIG. 11. As is also shown in this example, concerning tissue level implants, the outer clamping surfaces 45 can be distanced to the jawbone 4.

[0197] The implant 10 that is shown in FIG. 13 is configured to terminate essentially level with the jawbone 4 at a shoulder. Set back from the shoulder, a prominence 17 of the implant 10 is formed and this is configured to project into the mucosal region. The shown prominence 17 is also denoted as an external head for an external connection.

[0198] A dental implant system can include two taper connections 40, 50, whose implant-side connection portions 41, 51 are both designed male. An example of this is shown in FIG. 13: The second taper connection 50 is arranged on the coronal end of the prominence 17, which forms the coronal end 14 of the implant 10. The first taper connection 50 is arranged on a surface of the implant 10 that is distal (seen from the implant axis 19). In the shown example, this part of the distal surface is arranged roughly at the height of the bone boundary 111 after the implantation of the implant 10. The implant-side connection portions 41, 51 of the two shown taper connections 40, 50 are designed male and are each configured to be received by female counter-portions 42, 52 of the prosthetics component 20.

[0199] In the shown example, yet a third taper connection (not shown), which at the implant side (concerning the implant) could be designed, e.g., female could be arranged within the implant recess 16. Generally, two or more, in particular three or more, in particular four or more taper connections can be arranged between the implant 10 and the prosthetics component 20.

[0200] A dental implant system can include two taper connections 40, 50, of which one is arranged coronally of the other. FIG. 13 shows such an example: the first taper connection 50 in the implanted state is arranged essentially at the height of the jawbone 4; the second taper connection 40 is arranged on the coronal end of the prominence 17 that projects into the mucosal region.

[0201] The implant 10 that is shown in FIG. 14similarly to the example in FIG. 9is designed as a tissue-level implant. The first taper connection 40 is arranged at the outside on the coronal end 14 of the implant 10 and at the implant side is designed male. The second taper connection 50 is arranged at the inside in an implant recess 16 and at the implant side is designed female. In contrast to the example of FIG. 9, the lengths of the clamping surfaces 45 in the respective connection directions are essentially equal in the shown embodiment example.

[0202] FIG. 15 shows an example of an implant from a coronal view which, in FIGS. 1-14, corresponds to a view from above. The coronal surface 14 of the implant 10 is delimited at the outside by a clamping surface 45 of a connection portion 41 for a first taper connection and from the inside by a clamping surface 45 of a connection portion 51 for a second taper connection.

[0203] In the shown example, the implant-side clamping surface 45 of the outer, first taper connection 40 is designed as a truncated cone. The clamping surface 45 of the second taper connection 50 is arranged in an implant recess 16 and is designed as a truncated cone with structure elements 70.

[0204] Structure elements 70 are geometric particularities that can function as an orientation aid, positioning aid and/or twist (rotation) protection for placing and/or fastening the prosthetics component on/onto the implant 10.

[0205] In an embodiment, an implant 10 can include structure elements 70 and a prosthetics component can include structure elements 70 that match with these. For example, the implant 10 can include notches 71 and the prosthetics component 20 can include projections (not shown) that match with these. Of course the notches and projections can also be arranged the outer way round or mixed. A structure element 70 of the implant 10 and a structure element 70 of the prosthetics component 20 can be adapted to one another, in particular designed at least partly as a negative shape of the other.

[0206] In the shown example, structure elements 70 are formed by recesses, thus notches 71, in the clamping surface 45 of the implant-side connection portion 51 of the second taper connection. As a whole, four such structure elements 70 are represented in the shown cross section and theseas shown in the examplecan be arranged rotationally symmetrically and offset to one another by 90.

[0207] Structure elements 70 can, for example, include a box-like geometry, thus be designed locally as a section of a cuboid, which possibly tapers in one or more directions and which is with a steep clamping surface 45 and/or other parts of the implant 10 or of the prosthetics component 20. The structure elements 70, which are shown in FIG. 15, are designed as a section of a cuboid with the clamping surface 45 and accordingly manifest themselves as a rectangle in the represented cross section, with regard to which one of the sides is arcuate according to the curvature of the clamping surface 45. Other sides can also be arcuate.

[0208] Structure elements 70 can be arranged at least partly in a clamping surface 45 of a taper connection, but also coronally and/or apically of a clamping surface 45 and even arranged distanced to a clamping surface.

[0209] FIG. 16 shows an example of an implant 10 from the coronal view similarly to FIG. 15. In contrast to the example of FIG. 15, the structure elements 70 do however taper in the apical direction. In a cross section, which is perpendicular to the shown cross-section, the structure elements 70 can have, for example, a trapezoidal shape.

[0210] A tapering of a structure element 70 can be, e.g., 8 or less than 8 (relative to the implant axis 19) and for its part can again function as a clamping surface 45, by which means the total surface of the clamping surfaces between the implant 10 and the prosthetics component 20 can be enlarged.

[0211] FIG. 17 shows five examples of box-like structure elements 70, which are designed as notches 71. The notches 71 can be arranged in an implant 10 and/or in a prosthetics component 20, e.g., within a clamping surface.

[0212] FIG. 17a shows a structure element 70 designed as a section of a cuboid with a steep clamping surface, with regard to which the front edgescorresponding to the shape of the steep clamping surfacecan differ from the perpendicular by a few degrees.

[0213] FIG. 17b shows a structure element 70 designed as a section of a cuboid that tapers in width and is with a steep clamping surface. Steep clamping surfaces can again arise due to the tapering.

[0214] FIG. 17c shows a structure element designed as a section of cuboid that tapers in width and in depth and which is with a steep clamping surface. The structure element therefore tapers in two different dimensions. In the shown example, three steep clamping surfaces arise on account of this.

[0215] FIG. 17d shows a structure element 70 as a section of a cuboid tapering at a wall. In the shown example, this is the right wall.

[0216] FIG. 17e shows a structure element 70 as a section of a cuboid, the cuboid tapering in two different dimensions. In the shown example, the right wall as well as the rear wall taper.

[0217] Concerning box-like structure elements 70, such as, e.g., those which are shown in FIGS. 17a to 17e, one or more straight edges can be designed as semi-circular arches or other shapes.

[0218] FIG. 18 shows a detail of a perspective view of an implant 10. The implant 10 at its coronal end 14 includes an implant recess 16 with a fastening means recess 31. The coronal end of the inner wall of the implant recess 16 is designed as a clamping surface 45 of a female connection portion 51 for a taper connection. The clamping surface 45 is designed as a truncated cone with four structure elements 70 in the form of box-like notches 71. The four notches 71 are arranged in the clamping surface 45 offset to one another by 90.

[0219] FIG. 19 shows a detail of a cross section of an implant 10 as well as of a prosthetics component 20, wherein the cross-sectional plane contains the coronal-apical direction. As can be recognised on the left side of the Figure, the implant 10 at the outside includes a clamping surface 45 of a male connection portion 41. It can be recognised on the right side of the figure that the implant 10 at the inside includes a clamping surface 45 of a male connection portion 51.

[0220] The clamping surface 45 of the inner, female connection portion 51 of the implant includes a structure element 70, which is designed as a notch 71 and which is formed at the apical end of the clamping surface 45. The corresponding male connection portion 52 of the prosthetics component 20 includes a structure element, which is arranged and designed in a manner corresponding to this, in the form of a projection 72. The projection 72 is designed essentially as a negative of the notch 71 and is configured to commonly assume a positive fit together with the notch 71. In the shown example, the two shown structure elements 70 are each designed as a step.

[0221] The show example includes two tolerance regions between the implant 10 and the prosthetics component 20. A first tolerance region is arranged coronally of the coronal end 14 of the implant 10 and is adjacent to the two shown taper connections 40, 50. A second tolerance region is arranged at the apical end of the second, inner connection 50, at the apical end of the two shown structure elements 70. On fastening, the prosthetics component 20 can be pushed further into the implant 10 due to the two shown tolerance regions 60 and in particular the respective gap at the respective connections 40, 50 can therefore be reduced, in particular minimised.