Abutment, implant and implant system
Patent Information
- Application Number
- EP2023808713
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-11-14
- Filing Date
- 2023-11-14
- Publication Date
- 2025-09-24
AI Technical Summary
Existing dental implant systems face challenges with complex and costly production, poor handling, and inadequate bacterial sealing, posing risks to patients.
A dental implant system with a structure featuring a threading section for axial guidance, an anti-rotation section with inclined anti-rotation structures to prevent rotation, and a conical sealing section to minimize bacterial penetration, designed for ease of handling and reduced patient burden.
The system simplifies handling, enhances mechanical load capacity, and provides a high sealing effect against bacterial penetration, ensuring a stable and safe dental implant solution with reduced manufacturing complexity.
Smart Images
Figure 1.1
Abstract
Description
[0001] Structure, implant and implant system
[0002] The invention relates to a structure for an implant system, an implant and an implant system, in particular for the dental field.
[0003] Abutments for implant systems, implants, and implant systems in the dental field are already known from the state of the art. Dental implant systems serve to anchor dental crowns or similar dental prostheses in a jaw. The implant systems known from the state of the art include, among other things, an implant and an abutment, with the implant serving to anchor the dental prosthesis in the jaw, and the abutment serving to support the dental prosthesis and position it relative to the implant.
[0004] To prevent relative rotation between the abutment and the implant, these two elements each have complementary, positive-locking rotation locks in an anti-rotation section. Additionally, it is also known to provide the abutment and the implant with complementary conical sections to minimize the penetration of bacteria into the space between the implant and the abutment. However, the problem with these known abutments is their poor handling, which represents an additional burden and a source of danger for the patient. Furthermore, the manufacture of these abutments is complex and costly.
[0005] It is therefore an object of the present invention to provide a structure for an implant system, an implant and an implant system, in particular for the dental field, which are easy to handle and represent only a low burden and risk for the patient, have a high sealing effect against the penetration of bacteria and meet all requirements, in particular with regard to continuous loading, with a minimal diameter.
[0006] This object is achieved with a structure according to claim 1, with an implant according to claim 13, by an implant system according to claim 14 and by using an implant and / or a structure according to claim 15. Further advantages, features and embodiments emerge from the subclaims, the description and the figures.
[0007] According to one aspect of the invention, a structure, in particular a dental implant structure, for an implant system, wherein the structure extends in a longitudinal direction, wherein the structure has a threading section, a rotation-preventing section and a sealing section, wherein the threading section has a cylindrical section at least in sections in the longitudinal direction, wherein the threading section is designed to contact an implant, in particular a dental implant, wherein the cylindrical section of the threading section has a first diameter, wherein the structure is delimited in the longitudinal direction by a base surface of the threading section in the longitudinal direction, wherein the base surface is flat, wherein the base surface in particular has a normal which is parallel to the longitudinal direction, wherein the threading section has a length in the direction of the longitudinal direction, wherein the threading section has a first tapering region,which is arranged in the longitudinal direction between the cylindrical section and the base surface of the threading section, wherein the first tapered region encloses a first angle with the base surface, wherein the anti-rotation section is designed to contact at least partially with the implant, in particular the dental implant, wherein the anti-rotation section in particular has a second diameter, wherein the anti-rotation section has anti-rotation structures, wherein the anti-rotation structures are designed such that they prevent or can prevent a rotation of the structure about the longitudinal direction relative to the implant in a form-fitting manner, wherein the outwardly pointing normals of the anti-rotation structures form an included angle with the longitudinal direction, wherein the anti-rotation section at an end facing the threading section, in particular in the longitudinal direction,a second tapered region, wherein the anti-rotation section has a widening section at an end facing away from the threading section, in particular in the longitudinal direction, wherein the widening section widens in the direction of the end facing away from the threading section, and has a third diameter at the end facing away from the threading section, in particular in the longitudinal direction, and wherein the widening section has a curvature with a radius of curvature in a sectional plane which is also spanned by the longitudinal direction, wherein the sealing section is designed to contact the implant, wherein the sealing section has an end facing the anti-rotation section, wherein the sealing section has the third diameter at the end facing the anti-rotation section, wherein the sealing section is conical,and wherein the cone has a cone angle. The structure according to the invention is advantageously part of an implant system, in particular a dental implant system, wherein such an implant system can contain, in addition to a structure, an implant, a connecting element, in particular a connecting threaded pin, and / or a dental crown. The dental implant system serves to anchor a dental crown or a dental prosthesis in a jaw. The implant serves to be arranged in human tissue, in particular in a human jaw. The structure, on the other hand, serves to receive the dental crown or dental prosthesis and to contact it with the implant. In other words, the structure serves to connect the dental crown or dental prosthesis to the implant in an implant system. The structure according to the invention extends along a longitudinal direction. This longitudinal direction is in particular the directionin which the length of the abutment is determined. In other words, this can mean that the longitudinal direction is the direction in which the implant has its longest main extension. In order to create a connection to a dental implant of an implant system, the abutment has a threading section. The threading section extends in the longitudinal direction. The threading section is designed to contact an implant, in particular a dental implant, and during threading, in particular, ensures that a preliminary rough alignment of the implant in relation to the abutment can be achieved. The threading section has a cylindrical section, at least in sections in the longitudinal direction. The cylindrical section of the threading section is designed to enable axial guidance of the abutment in the implant.especially during assembly. This allows axial guidance of the abutment during assembly or when arranging the abutment relative to the implant, making it much easier to handle the abutment in a patient's mouth. Furthermore, the cylindrical section can be used as a force transmission surface for radial and tangential forces, so that the provision of a cylindrical section can increase mechanical load-bearing capacity. The cylindrical section of the threading section has a first diameter. Advantageously, the first diameter is smaller than the second diameter, which in turn is or can be smaller than the third diameter. The implant is delimited, in particular in the longitudinal direction, by a base surface of the threading section. The base surface of the threading section is flat. The base surface has, in particular, a normal,which extends parallel to the longitudinal direction. The threading section has a length in the longitudinal direction. The length is the distance from the end of the threading section facing away from the base surface to the base surface of the threading section, in other words, the height of the cylinder of the cylindrical section of the threading section and the height of the first tapered region. The threading section has a first tapered region, which is arranged in the longitudinal direction between the cylindrical section and the base surface of the threading section. In other words, the threading section has, at least in sections in the longitudinal direction, a non-cylindrical region in which the diameter of the threading section tapers.In particular, this region is designed as a conical region. The first tapered region of the threading section forms a first angle with the base surface of the threading section. The first tapered region serves to increase the freedom of movement of the threading section when inserting the abutment into the implant and to simplify handling of the abutment, particularly in the patient's mouth. In order to prevent or hinder rotation of the abutment about the longitudinal direction, which can also be referred to as the longitudinal extension direction, relative to the implant, the abutment has an anti-twist section. The anti-twist section is designed to contact the implant at least in sections. The anti-twist section has a second diameter. The second diameter is the diameterwhich has the smallest possible circle in a plane perpendicular to the longitudinal direction of extension that can just surround the anti-rotation structures. Alternatively, the second diameter can also be the diameter of the circle that has the largest possible circle in a plane perpendicular to the longitudinal direction of extension that can just be surrounded by the anti-rotation structures, in particular without penetrating them or (virtually) projecting beyond them. Alternatively or additionally, the second diameter can also be the distance between two opposite anti-rotation structures. The second diameter can be variable along the extension of the anti-rotation section. The anti-rotation section has - as already explained - anti-rotation structures. These anti-rotation structures are designed and / or constructed in such a way thatthat they positively prevent or can prevent a rotation of the structure around the longitudinal direction relative to the implant. In other words, the anti-rotation structures arranged on the outside of the anti-rotation section are designed such that they interact and / or can be brought into engagement with complementary anti-rotation structures of an implant in a positively locking manner, so that a rotation around the longitudinal direction between the structure and the implant is or can be prevented by them. The anti-rotation structures in the anti-rotation section enable a rotation of the structure, and thus a rotation of the dental implant or a dental prosthesis,relative to the implant. The outwardly pointing normals of the anti-rotation structures form an included angle with the longitudinal direction. In other words, the anti-rotation structures are inclined relative to the longitudinal direction (or longitudinal axis of the structure), i.e., the anti-rotation structures do not extend parallel to the radial direction, but rather enclose an angle with it, which is also referred to as the included angle. This angle can also be negligible, so that the anti-rotation structures extend parallel to the longitudinal direction. In particular, the included angle lies in a range from 80° to 89.99°, preferably in a range from 84° to 89.97°, and particularly preferably in a range from 89.1° to 89.3°. In particular, the outwardly pointing normals of the anti-rotation structures lie in a plane,which are spanned by the longitudinal direction and a radial direction. The radial direction points radially away from the longitudinal direction. Advantageously, the longitudinal direction runs through the center of gravity of the structure. The anti-twist section has a second tapered region at an end facing the threading section in the longitudinal direction. The second tapered region is designed such that the anti-twist section tapers towards the end facing the threading section. The second tapered region serves to increase the freedom of movement of the anti-twist section when inserting the structure into the implant and to simplify handling of the structure, in particular in the patient's mouth. The anti-twist section has a second tapered region at an end facing away from the threading section, in particular in the longitudinal direction.a widening section. The widening section widens towards the end facing away from the threading section. At the end facing away from the threading section, in particular in the longitudinal direction, the threading section has, in particular, a third diameter. The widening section has a curvature with a radius of curvature in a sectional plane that is also spanned by the longitudinal direction and, in particular, the radial direction. The second diameter is, in particular, also the diameter of the anti-rotation section outside the second tapered region at the end facing the threading section. In other words, the second diameter is the diameter in the region of the anti-rotation section that is closest to the threading section but is not part of the second tapered region. In order to minimize the penetration of bacteria into the space between the abutment and the implant,The abutment has a sealing section. The sealing section is designed to contact the implant. The sealing section has a third diameter at an end facing the anti-rotation section. The sealing section is conical and has a cone angle. In other words, the sealing section is designed such that it tapers towards the end facing the anti-rotation section. The third diameter can therefore be the smallest diameter of the conical section of the sealing section. The primary function of the sealing section is to reliably prevent or hinder the penetration of bacteria between the abutment and the implant. In other words, the sealing section serves to seal the space between the abutment and the implant.especially to prevent bacterial penetration. The conical shape of the sealing section allows for a particularly well-sealed connection between the implant and the abutment against bacteria.
[0008] According to a first embodiment, the structure has the following dimensions: A1 : 0.70 mm
[0009] A2: 0.08 mm
[0010] A3: 2.15 mm
[0011] A4: 3.34 mm
[0012] A5: 3.54 mm
[0013] A6: 1.45 mm
[0014] A7: 2.64 mm
[0015] D1 : 2.17 mm
[0016] D2: 2.24 mm
[0017] D3: 2.63 mm
[0018] D4: 3.18 mm
[0019] D5: 3.10 mm
[0020] W1: 45° W2: 22.4000° W3: 89.2° W4: 120° W5: 60° W6: 0.8000° R: 0.15 mm
[0021] The first tapered region V1 has a height of 0.1 mm. According to a second embodiment, the structure has the following dimensions:
[0022] A1: 1.20 mm
[0023] A2: 0.08 mm
[0024] A3: 2.65 mm
[0025] A4: 3.84 mm
[0026] A5: 4.04 mm
[0027] A6: 1.45 mm
[0028] A7: 2.64 mm
[0029] D1 : 2.17 mm
[0030] D2: 2.24 mm
[0031] D3: 2.63 mm
[0032] D4: 3.18 mm
[0033] D5: 3.10 mm
[0034] W1 : 45°
[0035] W2: 22.4000°
[0036] W3: 89.2°
[0037] W4: 120°
[0038] W5: 60°
[0039] W6: 0.8000°
[0040] R: 0.15 mm
[0041] The first tapered area V1 has a height of 0.1 mm.
[0042] According to a third embodiment, the structure has the following dimensions: D2: 2.45 mm
[0043] W6: 0° (or 180°)
[0044] The dimensions of the distances A1 to A7, the diameters D1, D3, D4, D5, the angles W1 to W5 and the radius of curvature R correspond to the dimensions mentioned in the first embodiment.
[0045] According to a fourth embodiment, the structure has the following dimensions:
[0046] D2: 2.45 mm
[0047] W6: 0° (or 180°) The dimensions of the distances A1 to A7, the diameters D1, D3, D4, D5, the angles W1 to W5 and the radius of curvature R correspond to the dimensions mentioned in the second embodiment.
[0048] The tolerance of the dimensions in the above-mentioned examples is calculated according to the general tolerance ISO 2768-fH and is ± 0.05 mm or ± 0.05°.
[0049] Advantageously, the anti-rotation structures extend exclusively within the anti-rotation section. In other words, this can mean that the anti-rotation structures are formed or present only within the anti-rotation section. This allows for a particularly simple to manufacture abutment, since extensive machining of the abutment only needs to be performed within the anti-rotation section. Furthermore, a abutment whose anti-rotation structures extend only within the anti-rotation section allows for easy handling of the abutment in the patient's mouth.
[0050] Alternatively or additionally, the anti-rotation structures preferably extend beyond the anti-rotation section. In other words, this can mean that the anti-rotation structures extend beyond the anti-rotation section, in particular in the longitudinal direction. Therefore, it is in principle possible for the anti-rotation structures to also be present in the adjacent section(s) to the anti-rotation section or to extend into these areas. The anti-rotation structures can extend, in particular, into the sealing section and / or the threading section of the structure. This makes it possible to achieve a particularly strong, mechanically resilient, positive-lock anti-rotation device, since this increases, in particular, the available anti-rotation surface, so that the surface pressures that occur can be reduced.
[0051] According to one embodiment, the ratio of the length of the threading section to the cone angle is in a range from 0.022 mm / ° to 0.041 mm / °, preferably from 0.027 mm / ° to 0.036 mm / °, and particularly preferably from 0.029 mm / ° to 0.034 mm / °. A ratio of 0.022 mm / ° to 0.041 mm / ° results in a particularly easy-to-manufacture abutment. A ratio in a range from 0.027 mm / ° to 0.036 mm / ° results in a abutment that is particularly well suited for use in short implants or short implant systems and is therefore suitable for people with small jaws or people with little jawbone volume. The abutment contributes significantly to the fact that bone augmentation can be dispensed with, while at the same time achieving a stable and mechanically resilient implant system.If the ratio is in a range of 0.029 mm / ° to 0.034 mm / °, a particularly easy-to-handle abutment can be achieved, so that the placement of the abutment, especially in a patient's mouth, can be simplified.
[0052] According to a further embodiment, the ratio of the length of the threading section to the cone angle is in a range from 0.044 mm / ° to 0.063 mm / °, preferably from 0.049 mm / ° to 0.058 mm / °, and particularly preferably from 0.051 mm / ° to 0.056 mm / °. A ratio in a range from 0.044 mm / ° to 0.063 mm / ° results in a particularly stable and mechanically resilient structure. A ratio of 0.049 mm / ° to 0.058 mm / ° results in a structure that is particularly well suited for use in long implants or long implant systems and thus for people with large jaws or people with high jawbone volume. If, on the other hand, the ratio is in a range of 0.051 mm / ° to 0.056 mm / °, the result is a structure which can fix the implant particularly well and in which it can be particularly well ensured that the longitudinal direction of the structure is and remains aligned parallel to the implant (in its longitudinal direction).In other words, tipping or inclination of the structure is avoided.
[0053] The ratio of the radius of curvature to the included angle is expediently in a range from 0.00056 mm / ° to 0.00281 mm / °, and preferably from 0.00112 mm / ° to 0.00224 mm / °. A ratio of 0.00056 mm / ° to 0.00281 mm / ° results in a particularly easy-to-manufacture abutment. A ratio in a range from 0.00112 mm / ° to 0.00224 mm / ° results in a abutment that surprisingly enables a particularly firm, positive fixation of the implant and particularly reliably prevents relative rotation between the abutment and the implant.
[0054] The anti-rotation structures are expediently inclined relative to the longitudinal direction such that an effective circumference of the anti-rotation section (i.e., the circumference of the anti-rotation section including the anti-rotation structures) tapers toward the end of the anti-rotation section facing the threading section. In other words, the anti-rotation structures are inclined such that the distance between the anti-rotation structures and the longitudinal axis of the structure decreases toward the end of the anti-rotation section facing the threading section. The inclination of the anti-rotation structures relative to the longitudinal direction results in a structure that is particularly easy to handle.
[0055] The ratio of the first diameter to the third diameter is expediently in a range from 0.696 to 0.975, preferably from 0.758 to 0.897, and particularly preferably from 0.791 to 0.860. A ratio of 0.696 to 0.975 results in a particularly easy-to-manufacture abutment. However, if the ratio is in a range from 0.758 to 0.897, a particularly easy-to-handle abutment can be achieved, so that the placement of the abutment, particularly in a patient's mouth, can be simplified. A ratio of 0.791 to 0.860 results in a abutment that can contact the implant particularly well, so that the longitudinal direction of the abutment is and remains aligned parallel to the implant (in its longitudinal direction) and undesirable inclination of the abutment is avoided.
[0056] The ratio of the second diameter to the first diameter is expediently in a range from 0.807 to 1.162, preferably from 0.943 to 1.061 and particularly preferably from 0.986 to 1.080. A ratio of 0.807 to 1.162 results in a particularly easy-to-manufacture abutment. A ratio of 0.943 to 1.061 results in abutment with particularly high freedom of movement of the threading section when inserting the abutment into the implant and simplified handling of the abutment in the patient's mouth. A ratio between 0.986 and 1.080 results in a abutment which offers particularly good protection against tilting or inclination of the implant.
[0057] The ratio of the first diameter to the cone angle is expediently in a range from 0.087 mm / ° to 0.107 mm / °, preferably from 0.092 mm / ° to 0.102 mm / °, and particularly preferably from 0.094 mm / ° to 0.099 mm / °. A ratio of 0.087 mm / ° to 0.107 mm / ° results in a structure that can be handled particularly easily in a patient's mouth. A ratio between 0.092 mm / ° and 0.102 mm / ° results in a structure that can fix the implant particularly well and protects the implant particularly well against tilting or inclination. A ratio of 0.094 mm / ° to 0.099 mm / ° can surprisingly achieve a particularly high degree of sealing effect against the penetration of bacteria into the intermediate area between the implant and the structure.
[0058] A further aspect of the invention can relate to an implant which is in particular designed to make contact with a structure according to the invention, in particular as described above and below. The implant, in particular a dental implant, is intended to be arranged in human tissue, in particular in a human jaw. The implant is advantageously part of an implant system, wherein such an implant system can contain, in addition to an implant, a structure, a connecting element, in particular a connecting threaded pin, and / or a dental crown. The implant comprises an arrangement region on the implant side, in particular on the inside, which is designed to make contact with a structure at least in sections.The implant-side arrangement region has anti-rotation structures, wherein the implant-side anti-rotation structures are designed and / or constructed in such a way that they positively prevent or can prevent rotation of the implant relative to the structure about the longitudinal direction. In other words, the implant-side anti-rotation structures are designed in such a way that they interact and / or can be brought into engagement with complementary anti-rotation structures of the anti-rotation section of the structure, such that rotation about the longitudinal direction between the structure and the implant is positively prevented. With regard to the further possible advantages of this embodiment, reference is also made to the above statements relating to the inventive design of a structure.In other words, the implant can have the above-described features, advantages, configurations, and / or embodiments of the structure in a complementary configuration. Therefore, in particular, the above-described features, advantages, configurations, and / or embodiments with regard to the structure can also be provided in an implant, and vice versa.
[0059] Advantageously, the implant-side arrangement area has a threaded section. This threaded section serves, in particular, to screw or clamp a superstructure to the implant. Therefore, the threaded section can be used, in particular, to clamp the superstructure to the implant via a connecting element. This allows for a stable and mechanically resilient implant system to be achieved.
[0060] A further aspect of the invention may relate to an implant system, wherein the implant system comprises a structure, in particular as described above and below, and an implant, in particular as described above and below, and advantageously a connecting element, in particular a connecting threaded pin. This allows the above-described advantages regarding the structure and the implant to also be realized in an implant system. The connecting threaded pin, which may be present, serves to clamp the implant to the structure.
[0061] Further advantages and features of the present invention will become apparent from the following description with reference to the figures. Individual features of the illustrated embodiments can also be used in other embodiments, unless expressly excluded. They show: Figure 1: A side view of a dental implant structure according to a first
[0062] embodiment;
[0063] Figure 2: A side view of a dental implant abutment according to a second
[0064] embodiment;
[0065] Figure 3: A frontal view along the longitudinal direction of a dental implant abutment in contact with a dental implant;
[0066] Figure 4: A perspective view of an anti-rotation section and a threading section of a dental implant abutment;
[0067] Figure 5: A side view of an anti-twist section and a
[0068] Threading section of a dental implant abutment; and
[0069] Figure 6: A cross-section of a contact surface.
[0070] Figure 1 shows an embodiment of a structure 1, in particular a dental implant structure, which extends along a longitudinal direction L. The structure 1 has a threading section 5 which has a fundamentally cylindrical configuration. This fundamentally cylindrical configuration of the threading section 5 is achieved in that the perfectly cylindrical configuration of the threading section 5 is destroyed or interrupted in sections by a first tapering region V1 of the threading section 5. In other words, the threading section 5 has a cylindrical region and a first tapering region V1. The first tapering region V1 of the threading section 5 is located near the base surface 10 of the threading section 5, with the threading section 5 tapering towards the base surface 10. The first tapering region V1 of the threading section 5 forms an angle W1 with the base surface 10 of the threading section 5.The cylindrical section of the threading section 5 has a diameter D1. The threading section 5 has a length or a height A1. The structure 1 has an anti-rotation section 3, which is located next to the threading section 5. The anti-rotation section 3 is designed to make contact with a dental implant 11. The anti-rotation section 3 has a diameter D2 at the end facing the threading section 5. The structure 1 has, in addition to the anti-rotation section 3, an expanded section 4, which widens in the direction of the end facing away from the anti-rotation section 3. The outer wall or side of the anti-rotation section 3 forms a sixth angle W6 with the longitudinal direction L, so that the anti-rotation section 3 widens towards the expanded section 4. The outer wall orSide of the anti-rotation section 3 is arranged at a sixth distance D6 from the longitudinal direction L. The widened section 4 has a radius of curvature R. The widened section 4 has a diameter D3 at the end facing away from the anti-rotation section 3. The anti-rotation section 3 widens in the direction of the widened section 4. The anti-rotation section 3 has contact surfaces 6 which are designed to prevent rotation of the structure 1 about the longitudinal direction L. The anti-rotation structures 6 are designed to make positive contact with a dental implant 11 and to prevent rotation about the longitudinal direction L in a positive fit. In the embodiment shown, the anti-rotation structures 6 are designed as contact surfaces 6. The contact surfaces 6 extend from the anti-rotation section 3 into the widened section 4. The contact surfaces 6 have a length A6.The end of the widened section 4 facing away from the anti-rotation section 3 is arranged at a third distance A3 from the base surface 10 of the threading section 5. In addition to the widened section 4, the structure 1 has a sealing section 2 which is designed to make contact with a dental implant 11. The sealing section 2 is conical, with the cone having a cone angle W2 which is enclosed by the cone. At the end facing away from the widened section 4, the sealing section 2 has a boundary region 8 which is designed to make contact with a dental crown 9. The sealing section 2 widens towards the boundary region 8. The sealing section 2 has a diameter D4 at the boundary region 8. The boundary region 8 is arranged at a fifth distance A5 from the base surface 10.The structure 1 has a distance A7, which extends from the end of the threading section 5 facing the anti-rotation section 3 in the longitudinal direction L to a plane of the sealing section 2, which is arranged parallel to the base surface 10 and at which the sealing section 2 has a diameter D5. The structure 1 has a distance A4, which extends from the base surface 10 in the longitudinal direction L to the plane of the sealing section 2, which is arranged parallel to the base surface 10 and at which the sealing section has a diameter D5.
[0071] Figure 2 shows a further embodiment of a structure 1. The embodiment shown in Figure 2 differs from the embodiment shown in Figure 1 in that the height A1 of the threading section 5 is greater than that shown in Figure 1. Accordingly, the embodiment shown in Figure 2 has longer distances A3, A4, and A5 than the embodiment shown in Figure 1.
[0072] Figure 3 shows a front view along the longitudinal direction L of a structure 1 or of the anti-rotation section 3 of the structure 1. The embodiment of the structure 1 shown in Figure 3 can in principle match the embodiment shown in Figure 1 or the embodiment shown in Figure 2. The structure 1 is designed to make contact with a dental implant. The dental implant has transfer surfaces on the inside, i.e. on the side facing the structure 1, which are designed to make form-fitting contact with the anti-rotation structures 6 of the dental implant structure 1. In each case one contact surface 6 of the anti-rotation section 3 of the dental implant structure 1 makes form-fitting contact with a transfer surface of a dental implant. The anti-rotation section 3 has six external contact surfaces 6.
[0073] The six contact surfaces 6 are arranged at equal distances from one another, so that two contact surfaces 6 are mounted opposite one another. The outer sides of the contact surfaces 6, i.e. the sides of the contact surfaces 6 which are designed to face the transfer surfaces of the dental implant, are concavely curved in a certain area, while in another area the contact surfaces 6 are flat. The outwardly facing normals of the contact surfaces 6 form an included angle with the longitudinal direction L. The contact surfaces 6, in the frontal view, i.e. in a cross-section along a plane which runs parallel to the base surface 10, each have a mirror plane S which divides the cross-sectional area of the respective contact surfaces 6 into two symmetrically corresponding, i.e. congruent, halves. Each mirror plane S of a contact surface 6 closes with the next but one contact surface 6, i.e.the contact surfaces 6 next to the directly adjacent contact surfaces 6, an angle W4.
[0074] Figure 4 shows a perspective view of an anti-rotation section 3 and a threading section 5 of a structure 1 according to one embodiment. The embodiment of the structure 1 shown in Figure 4 can, in principle, match the embodiments shown in Figure 1, Figure 2, or Figure 3. The anti-rotation section 3 has a second tapered region V2 at the end facing the threading section 5, in which the anti-rotation section 3 tapers towards the end facing the threading section 5.
[0075] Figure 5 shows a side view of an anti-rotation section 3 and a threading section 5 of a structure 1 according to one embodiment. The second tapered region V2 of the anti-rotation section 3 has a length A2. The tapered region V2 forms a fifth angle W5 with the longitudinal direction L. The outer wall or side of the anti-rotation section 3 runs parallel to the longitudinal axis L.
[0076] Figure 6 shows a cross-section through a contact surface 6 of an anti-rotation section 3 of a dental implant abutment 1. The outwardly facing normal of the contact surface 6 forms an included angle W3 with the longitudinal direction L. List of reference symbols:
[0077] 1 : Dental implant abutment
[0078] 2: Sealing section
[0079] 3: Anti-rotation section
[0080] 4: Widening section
[0081] 5: Threading section
[0082] 6: Anti-rotation structure
[0083] 7: Transfer area
[0084] 8: Border area
[0085] 9: Dental crown
[0086] 10: flat base
[0087] AO: Ground level
[0088] A1 : first distance
[0089] A2: second distance
[0090] A3: third distance
[0091] A4: fourth distance
[0092] A5: fifth distance
[0093] A6: sixth distance
[0094] A7: seventh distance
[0095] D1 : first diameter
[0096] D2: second diameter
[0097] D3: third diameter
[0098] D4: fourth diameter
[0099] D5: fifth diameter
[0100] D6: sixth diameter
[0101] V1 : first tapering area
[0102] V2: second tapering area
[0103] W1 : first angle
[0104] W2: Cone angle
[0105] W3: Inclusion angle
[0106] W4: fourth angle
[0107] W5: fifth angle W6: sixth angle
[0108] L: Longitudinal direction
[0109] R: radius of curvature
[0110] S: mirror plane
Claims
Structure (1), in particular a dental implant structure (1), for an implant system, wherein the structure (1) extends in a longitudinal direction (L), wherein the structure has a threading section (5), a rotation-preventing section (3), and a sealing section (2), wherein the threading section (5) has a cylindrical section at least in sections in the longitudinal direction (L), wherein the threading section (5) is designed to contact an implant, in particular a dental implant, wherein the cylindrical section of the threading section (5) has a first diameter (D1), wherein the structure (1) is delimited in the longitudinal direction (L) by a base surface (10) of the threading section (5) in the longitudinal direction (L), wherein the base surface (10) is flat, wherein the base surface (10) in particular has a normal which is parallel to the longitudinal direction (L), wherein the threading section (5) has a length (A1) in the direction of the longitudinal direction (L),wherein the threading section (5) has a first tapered region (V1) which is arranged in the longitudinal direction (L) between the cylindrical section and the base surface (10) of the threading section (5), wherein the first tapered region (V1) forms a first angle (W1) with the base surface (10), wherein the anti-rotation section (3) is designed to contact the implant, in particular the dental implant, at least in sections, wherein the anti-rotation section (3) has in particular a second diameter (D2), wherein the anti-rotation section (3) has anti-rotation structures (6), wherein the anti-rotation structures (6) are designed such that they prevent or can prevent a rotation of the structure (1) about the longitudinal direction (L) relative to the implant in a form-fitting manner. Structure (1) according to claim 1, wherein the outwardly pointing normals of the anti-rotation structures (6) form an included angle (W3) with the longitudinal direction (L), wherein the anti-rotation section (3) has a second tapered region (V2) at an end facing the threading section (5), in particular in the longitudinal direction (L). Structure (1) according to one of the preceding claims, wherein the anti-rotation section (3) has a widening section (4) at an end facing away from the threading section (5), in particular in the longitudinal direction (L), wherein the widening section (4) widens in the direction of the end facing away from the threading section (5), and has a third diameter (D3) at the end facing away from the threading section (5), in particular in the longitudinal direction (L).Structure (1) according to one of the preceding claims, and wherein the widening section (4) has a curvature with a radius of curvature (R) in a sectional plane which is also spanned by the longitudinal direction (L). Structure (1) according to one of the preceding claims, wherein the sealing section (2) is designed to make contact with the implant, wherein the sealing section (2) has an end facing the anti-twist section (3), wherein the sealing section (2) has the third diameter (D3) at the end facing the anti-twist section (3), wherein the sealing section (2) is conical, and wherein the cone has a cone angle (W2). Structure (1) according to one of the preceding claims. wherein the anti-rotation structures (6) extend exclusively in the anti-rotation section (3). Structure (1) according to one of the preceding claims, wherein the ratio of the length (A1) of the threading section (5) to the cone angle (W2) is in a range from 0.022 mm / ° to 0.041 mm / °, preferably from 0.027 mm / ° to 0.036 mm / °, and particularly preferably from 0.029 mm / ° to 0.034 mm / °. Structure (1) according to one of the preceding claims, wherein the ratio of the length (A1) of the threading section (5) to the cone angle (W2) is in a range from 0.044 mm / ° to 0.063 mm / °, preferably from 0.049 mm / ° to 0.058 mm / °, and particularly preferably from 0.051 mm / ° to 0.056 mm / °. Structure (1) according to one of the preceding claims, wherein the ratio of the radius of curvature (R) to the included angle (W3) is in a range from 0.00056 mm / ° to 0.00281 mm / °, and preferably from 0.00112 mm / ° to 0.00224 mm / °.Structure (1) according to one of the preceding claims, wherein the ratio of the first diameter (D1) to the third diameter (D3) is in a range from 0.696 to 0.975, preferably from 0.758 to 0.897, and particularly preferably from 0.791 to 0.
860. Structure (1) according to one of the preceding claims, wherein the ratio of the second diameter (D2) to the first diameter (D1) is in a range from 0.807 to 1.162, preferably from 0.943 to 1.061, and particularly preferably from 0.986 to 1.
080. Structure (1) according to one of the preceding claims, wherein the ratio of the first diameter (D1) to the cone angle (W2) is in a range from 0.087 mm / ° to 0.107 mm / °, preferably from. 0.092 mm / ° to 0.102 mm / °, and particularly preferably from 0.094 mm / ° to 0.099 mm / °.
13. Implant, in particular dental implant, for an implant system, comprising an arrangement region, in particular an internal one, wherein the arrangement region is designed to contact at least partially with a structure (1) according to one of the preceding claims.
14. Implant system comprising an implant, in particular according to claim 13, and a structure (1), in particular according to one of claims 1 to 12, and a connecting element, in particular a connecting threaded pin.
15. Use of an implant, in particular according to claim 13, in an implant system according to claim 14 and / or Use of a structure (1), in particular according to one of claims 1 to 12, in an implant system according to claim 14.