Dental implant system

Abstract

The utility model relates to the field of dental implantation. The dental implant system comprises an abutment, an implant and a connecting piece, the abutment and the implant are connected through the connecting piece; the partial structure of the abutment is made of a zirconium oxide material, and the implant is made of a zirconium oxide material. According to the utility model, the partial structure of the abutment and the implant are made of zirconia materials, so that the dental implant has good biocompatibility.

Description

Technical Field

[0001] The utility model relates to the field of dental implants, in particular to a dental implant system. Background Art

[0002] With the increase in clinical applications, problems with titanium implants have gradually emerged: due to the inherent color of titanium metal, there are aesthetic problems caused by thin gums or gum recession in the implant area, and the corrosion resistance of titanium and its alloys is affected by the complex environment in the mouth. Metal ions will be slowly released from the implant, which may induce bone resorption and cause implant failure. Metal ions will also accumulate in the surrounding soft tissues, lymph nodes or other locations in the body, and may be potential allergens. During MRI examinations of the head and neck, the implant will form artifacts, which will have a certain impact on local soft tissue imaging.

[0003] Therefore, it is necessary to find a new dental implant system with good biocompatibility. Utility Model Content

[0004] In view of this, the utility model provides a dental implant system.

[0005] Specifically, the following technical solutions are included:

[0006] The present application provides a dental implant system, comprising:

[0007] Abutments, implants and connectors;

[0008] The base and the implant are connected via the connecting piece;

[0009] Part of the structure of the base is made of zirconium oxide material, and the implant is made of zirconium oxide material.

[0010] Preferably, the base comprises a first substrate and a second substrate, the first substrate is made of zirconium oxide material, and the second substrate is made of titanium metal material;

[0011] The first end of the second base is inserted into the first base, and the second end of the second base is inserted into the implant.

[0012] Preferably, a first hole and a second hole are provided on the first substrate, the first hole and the second hole are coaxially arranged, and the diameter of the first hole is smaller than the diameter of the second hole;

[0013] The first end of the second substrate is inserted into the second hole, and the first substrate and the second substrate are bonded;

[0014] The second base is provided with a third hole, and one end of the connecting member passes through the third hole and is connected to the implant.

[0015] Preferably, a first positioning block is provided on the first substrate, and the first positioning block is arranged on the inner wall of the second hole;

[0016] The second base is provided with a first positioning groove, and the first positioning block is engaged with the first positioning groove.

[0017] Preferably, the first substrate is provided with a first hole, a second hole and an anti-rotation hole, the first hole, the second hole and the anti-rotation hole are coaxially arranged, the diameter of the first hole is larger than the diameter of the second hole, and the second hole connects the first hole and the anti-rotation hole;

[0018] The first end of the second base body is provided with an anti-rotation structure, and the anti-rotation structure is plugged into the anti-rotation hole;

[0019] The second base is provided with a third hole, and one end of the connecting member passes through the first hole, the second hole and the third hole and is connected to the implant.

[0020] Preferably, a second positioning groove is provided in the anti-rotation hole, a second positioning block is provided on the second base body, and the second positioning block is snap-connected with the second positioning groove.

[0021] Preferably, the length of the implant is 8 mm, 10 mm, 12 mm or 14 mm.

[0022] Preferably, the implant is provided with a thread, the thread profile is an isosceles trapezoid, the thread pitch is 0.5 to 1.4 mm, and the thread depth is 0.2 to 0.7 mm.

[0023] Preferably, the implant comprises a transgingival segment, and the roughness of the outer surface of the transgingival segment is 0.2-0.4 μm.

[0024] Preferably, the implant comprises a first surface, the base comprises a second surface, and the first surface and the second surface are sealed and connected;

[0025] The roughness of the first surface and the second surface are both 0.2-0.4 μm.

[0026] The beneficial effects of the technical solution provided by the utility model include at least:

[0027] In the utility model, part of the structure of the base and the implant are made of zirconium oxide material, so that the dental implant has good biocompatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a schematic diagram of the structure of a dental implant system according to an embodiment of the utility model;

[0030] Figure 2 A schematic cross-sectional structure diagram of a dental implant system according to an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of a top view of a dental implant system according to an embodiment of the utility model;

[0032] Figure 4 This is a schematic diagram of the implant structure of an embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the cross-sectional structure of an implant according to an embodiment of the utility model;

[0034] Figure 6 This is a schematic diagram of the top view of the implant structure of an embodiment of the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of a connecting piece according to an embodiment of the utility model;

[0036] Figure 8 This is a schematic diagram of a cross-sectional structure of a connector according to an embodiment of the utility model;

[0037] Fig. 9 This is a schematic diagram of the base structure of an embodiment of the utility model;

[0038] Fig.10 This is a schematic diagram of a cross-sectional structure of a base according to an embodiment of the utility model;

[0039] Fig.11 This is a schematic diagram of the side view structure of the first substrate of an embodiment of the utility model;

[0040] Fig.12 This is a schematic diagram of a top view of the first substrate of an embodiment of the utility model;

[0041] Fig.13 This is a schematic diagram of the AA cross-sectional structure of the first substrate of an embodiment of the utility model;

[0042] Fig.14 This is a bottom view of the first base structure of an embodiment of the utility model;

[0043] Fig.15 This is a schematic diagram of the second base structure of an embodiment of the utility model;

[0044] Fig.16 This is a schematic diagram of the cross-sectional structure of the second substrate of an embodiment of the utility model;

[0045] Fig.17 This is a schematic diagram of a top view of the second substrate of an embodiment of the utility model;

[0046] Fig.18 This is a bottom view of the second base structure of an embodiment of the utility model;

[0047] Fig.19 A schematic cross-sectional structure diagram of a dental implant system according to another embodiment of the utility model;

[0048] Fig. 20 This is a schematic diagram of a cross-sectional structure of a base according to another embodiment of the utility model;

[0049] Fig.21 This is a schematic diagram of the cross-sectional structure of the first substrate of another embodiment of the utility model;

[0050] Fig. 22 A bottom view structural diagram of a first base body of another embodiment of the utility model;

[0051] Fig.23 This is a schematic diagram of the second base structure of another embodiment of the utility model;

[0052] Fig.24 This is a schematic diagram of the cross-sectional structure of a second substrate in another embodiment of the utility model;

[0053] Fig.25 This is a schematic diagram of a top view of the second substrate of another embodiment of the utility model.

[0054] The reference numerals in the figures represent respectively:

[0055] 1-base; 11-first base; 111-first hole; 112-second hole; 113-first positioning block; 114-conical surface; 115-ring platform hole; 116-second surface; 117-anti-rotation hole; 12-second base; 121-third hole; 122-first positioning groove; 123-ring platform; 124-plum blossom column; 125-anti-rotation structure; 126-second positioning block; 2-connector; 21-nut; 22-fourth surface; 23-screw; 24-fastening thread; 25-fastening hole; 3-implant; 31-first surface; 32-third surface; 33-self-tapping groove; 34-protrusion; 35-plum blossom hole; 36-cylindrical hole; 37-screw hole; 38-conical thread; 39-transgingival segment.

[0056] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0058] Before further describing the embodiments of the present invention in detail, the directional nouns involved in the embodiments of the present invention, such as "upper part", "lower part", "side part", etc., are Figure 1 The orientation shown in is a reference and does not limit the protection scope of the present utility model.

[0059] In order to make the technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0060] As mentioned above, in order to find a dental implant system with good biocompatibility, metal-free all-ceramic oral implants have become a hot topic of research. Zirconia is a bio-inert polymer ceramic material. The most widely used is tetragonal Y-TZP with 2%-3% yttria (Y2O3) stabilizer added, which has a good phase change toughening effect. As a new generation of ceramic material, it has high bending strength (900-1200MPa) and high hardness (1200V). The white color of zirconia material gives it excellent aesthetic effect, and it has the advantages of corrosion resistance and low plaque adhesion rate.

[0061] like Figure 1 , Figure 2 and Fig.19 As shown, this embodiment introduces a dental implant system, including: an abutment 1, an implant 3 and a connector 2; the abutment 1 and the implant 3 are connected by the connector 2; a part of the structure of the abutment 1 is made of zirconium oxide material, and the implant 3 is made of zirconium oxide material. In this application, a part of the structure of the abutment 1 and the implant 3 are made of zirconium oxide material, so that the dental implant 3 has good biocompatibility.

[0062] Specifically, in this embodiment, the connecting member 2 is a central screw, and the central screw is made of titanium. Figure 2 and Fig.19, the implant 3 and the abutment 1 are connected together by a central screw.

[0063] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the length of the implant 3 is 8 mm, 10 mm, 12 mm, or 14 mm.

[0064] The implant 3 includes a gingival section 39 and a threaded section, wherein the threaded section is provided with threads, the thread profile is an isosceles trapezoid, the thread pitch is 0.5 to 1.4 mm, and the thread depth is 0.2 to 0.7 mm. Figure 5 As shown in the cross-sectional structure of the implant 3, the maximum diameter of the thread is 3.8 mm, 4.3 mm or 5.0 mm, and the taper of the implant 3 is 2.5-8.5°, preferably 5°. The thread on the implant 3 is a tapered thread 38, and this tapered micro-taper design can make implantation easier.

[0065] like Figure 3 and Figure 4 As shown, there are two self-tapping grooves 33 at the lower part of the threaded section, and the two self-tapping grooves 33 are symmetrically distributed on the outer surface of the lower end along the central axis plane of the implant 3.

[0066] like Figure 4 As shown, a protrusion 34 is provided at the lower end of the implant 3, and the protrusion 34 is spherical. The spherical protrusion 34 at the bottom not only makes implantation easier but also reduces the degree of bone damage.

[0067] like Figure 4 As shown, the third surface 32 at the upper end of the implant 3 is the interface between the threaded section and the gingival section 39 , and the third surface 32 is flush with the bone plane during the implantation operation.

[0068] The transgingival segment 39 has a relatively low roughness, and the roughness of the outer surface of the transgingival segment 39 is 0.2 μm, which is conducive to the deposition of soft tissue.

[0069] like Fig. 9 , Fig.10 and Fig. 20 As shown, the base 1 includes a first substrate 11 and a second substrate 12. The first substrate 11 is made of zirconium oxide material, and the second substrate 12 is made of titanium metal material. The first end of the second substrate 12 is inserted into the first substrate 11, and the second end of the second substrate 12 is inserted into the implant 3.

[0070] Specifically, the upper end of the second substrate 12 is the first end, the lower end of the second substrate 12 is the second end, the upper end of the second substrate 12 is inserted into the first substrate 11, and the lower end of the second substrate 12 is inserted into the second substrate 12. Fig.18 As shown, the lower portion of the second substrate 12 is a plum blossom column 124 .

[0071] The implant 3 includes a first surface 31, and the base 1 includes a second surface 116. The first surface 31 and the second surface 116 are sealed and connected. The roughness of the first surface 31 and the second surface 116 are both 0.2-0.4 μm, and the preferred roughness is 0.2 μm.

[0072] When the base 1 and the implant 3 are matched, the second surface 116 (eg Fig.13 and Fig.21 ) and the first surface 31 of the implant 3 (as shown Figure 4 As shown in the figure, the first surface 31 of the implant 3 is an important sealing surface and needs to be ground. The roughness ra value is 0.2-0.4 μm, and the preferred roughness is 0.2 μm.

[0073] like Figure 5 As shown, the implant 3 is provided with a connection hole, the opening of the connection hole is arranged at the upper end, the connection hole is coaxial with the implant 3, and the connection hole includes from top to bottom: a TORX PLUS type plum blossom hole 35, a cylindrical hole 36, and a screw hole 37. The TORX PLUS type plum blossom hole 35 cooperates with the TORX PLUS type plum blossom column 124 at the lower end of the second base 12, and the plum blossom structure can make the implant 3 and the base 1 connected stably and prevent rotation.

[0074] The length of the TORX PLUS plum blossom hole 35 on the implant 3 is slightly greater than the length of the TORX PLUS plum blossom column 124 at the lower end of the second base 12, which can avoid the second surface 116 of the base 1 and the first surface 31 of the implant 3 from being tightly sealed due to production errors.

[0075] The circumscribed circle diameter of the TORX PLUS type plum blossom hole 35 is slightly larger than the circumscribed circle diameter of the TORX PLUS type plum blossom column 124 of the second substrate 12 , which can avoid the second substrate 12 being unable to be inserted into the TORX PLUS type plum blossom hole 35 due to production errors.

[0076] The hexagonal plum blossom design of TORX PLUS can prevent the abutment 1 from rotating and improve the stability of the connection between the abutment 1 and the implant 3. At the same time, the edge of the TORX PLUS plum blossom hole 35 is rounded, which can make the insertion of the abutment 1 smoother.

[0077] The cylindrical hole 36 provides a cylindrical guide surface for the central screw, and the screw hole 37 cooperates with the fastening thread 24 of the central screw.

[0078] In one embodiment, Fig.10 , Fig.11 , Fig.12 , Fig.13As shown, the first substrate 11 is provided with a first hole 111 and a second hole 112, the first hole 111 and the second hole 112 are coaxially arranged, and the diameter of the first hole 111 is smaller than the diameter of the second hole 112. The first end of the second substrate 12 is inserted into the second hole 112, and the first substrate 11 and the second substrate 12 are bonded. Fig.16 As shown, a third hole 121 is provided on the second base body 12 , and one end of the connecting member 2 passing through the third hole 121 is connected to the implant 3 .

[0079] Further, if Fig.14 As shown, the first base body 11 is provided with a first positioning block 113, and the first positioning block 113 is arranged on the inner wall of the second hole 112. Fig.15 and Fig.17 As shown, the second base body 12 is provided with a first positioning groove 122, and the first positioning block 113 is engaged with the first positioning groove 122 to improve the efficiency of the connection between the base 1 and the implant 3, and also to prevent rotation.

[0080] Furthermore, the first substrate 11 made of zirconium oxide material and the second substrate 12 made of titanium metal material are bonded together by a medical adhesive.

[0081] Further, if Fig.16 As shown, the third hole 121 is a stepped hole, which matches the upper structure of the central screw. The upper part of the central screw is arranged in the third hole 121, and the lower part of the central screw is connected to the implant 3. Figure 2 shown.

[0082] In another embodiment, Fig.19 , Fig. 20 , Fig.21 and Fig.24 As shown, the first base body 11 is provided with a first hole 111, a second hole 112 and an anti-rotation hole 117, the first hole 111, the second hole 112 and the anti-rotation hole 117 are coaxially arranged, the diameter of the first hole 111 is larger than the diameter of the second hole 112, and the second hole 112 communicates with the first hole 111 and the anti-rotation hole 117. The first end of the second base body 12 is provided with an anti-rotation structure 125, and the anti-rotation structure 125 is plugged into the anti-rotation hole 117. The second base body 12 is provided with a third hole 121, and one end of the connector 2 that passes through the first hole 111, the second hole 112 and the third hole 121 is connected to the implant 3.

[0083] Further, the anti-rotation hole 117 is as follows Fig. 22 As shown, it has a main hole and three arc grooves evenly distributed on the wall of the main hole. Fig.25 As shown, it has a main body cylinder and three arc-shaped protrusions evenly distributed on the main body cylinder. The anti-rotation structure 125 and the anti-rotation hole 117 are matched and connected.

[0084] Furthermore, a second positioning groove is provided in the anti-rotation hole 117. Fig.23 and Fig.25 As shown, a second positioning block 126 is disposed on the second substrate 12 , and the second positioning block 126 is engaged with the second positioning groove to play a positioning role, thereby improving the installation efficiency of the first substrate 11 and the second substrate 12 .

[0085] Further, if Fig.19 As shown, in this embodiment, the upper part of the connector 2 is arranged in the first base 11, the nut 21 of the connector 2 is arranged in the first hole 111, and after the screw 23 of the connector 2 passes through the second hole 112 and the third hole 121, the fastening thread 24 of the connector 2 is connected to the implant 3. Under the fastening force of the connector 2, the second base 12 is clamped between the first base 11 and the implant 3. In this embodiment, there is no need to bond the first base 11 and the second base 12, the second base 12 is clamped by the first base 11 and the implant 3, and the three are pressed together by the central screw 2. No adhesive is needed, which effectively solves the problem of adhesive residue and reduces the incidence of biological complications.

[0086] Specifically, Fig.15 and Fig.23 As shown, the second substrate 12 is provided with a ring platform 123, as shown in FIG. Fig.13 and Fig.21 As shown, a ring hole 115 is provided on the first substrate 11, and the ring hole 115 is arranged on the lower end surface of the first substrate 11. When the first substrate 11 and the second substrate 12 are installed, the ring 123 is located in the ring hole 115, thereby enhancing the sealing performance of the first substrate 11 and the second substrate 12.

[0087] Further, if Fig.13 and Fig.21 As shown, the crown connection structure of the first substrate 11 is an inclined frustum, the axis of the crown connection structure is axis II, the axis of the first hole 111 is axis I, and the angle between axis I and axis II is 0-45°, which can be customized according to the actual situation of the patient.

[0088] The outer surface of the crown connection structure is a conical surface 114 with a taper of 2-10°.

[0089] In the present application, the implant 3 is made of zirconium oxide material, and the second substrate 12 is made of titanium metal material. This design fully takes into account the characteristics of zirconium oxide as a ceramic material with high strength but high brittleness. The second substrate 12 made of titanium metal is lower in strength than zirconium oxide material and has higher metal toughness. The two cooperate with each other to effectively reduce the ceramic chipping of zirconium oxide material and reduce the wear of the implant 3.

[0090] Specifically, Figure 7 and Figure 8As shown, the connecting member 2 is a central screw, including a nut 21, a screw rod 23 and a fastening thread 24. The fourth surface 22 is the interface between the nut 21 and the screw rod 23. In this embodiment, the fourth surface 22 is a plane. In other embodiments, the fourth surface 22 can also be set as a conical surface 114, and the angle of the conical surface 114 is 15°, 30° or 45°. The inner wall surface corresponding to the base 1 matched with the fourth surface 22 also needs to be set as a matching conical surface. The central screw is made of TC4 titanium alloy, and a hexagonal wrench fastening hole 25 is provided in the head of the central screw to facilitate the rotation and manipulation of the central screw.

[0091] The implantation method of the dental implant system of this embodiment includes the following steps: first, the soft tissue is cut at the site where the patient needs to implant, and a hole slightly smaller than the outer diameter of the implant 3 is opened on the alveolar bone using a drill, and then the implant 3 is screwed into the hole so that the third surface 32 of the implant 3 is flush with the bone plane. During the screwing process of the implant 3, the two self-tapping grooves 33 gradually contact the alveolar bone, so that the cutting force and the extrusion force are smoothly applied to the bone, reducing bone damage. Then, the first base 11 and the second base 12 are assembled into the base 1 in advance, and the TORX PLUS type plum blossom column 124 is inserted into the TORX PLUS type plum blossom hole of the implant 3. Finally, the central screw is installed to achieve the sealing of the implant 3 system and the fixation of the implant 3, the base 1 and the central screw.

[0092] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0093] Those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. The present invention is intended to cover any variation, use, or adaptation of the present invention that follows the general principles of the present invention and includes common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only.

[0094] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dental implant system, It is characterized in that include: Abutments, implants and connectors; The base and the implant are connected via the connecting piece; Part of the structure of the base is made of zirconium oxide material, and the implant is made of zirconium oxide material; The base comprises a first substrate and a second substrate, the first substrate is made of zirconium oxide material, and the second substrate is made of titanium metal material; The first end of the second base is inserted into the first base, and the second end of the second base is inserted into the implant; The first substrate is provided with a first hole and a second hole, the first hole and the second hole are coaxially arranged, and the diameter of the first hole is smaller than the diameter of the second hole; the first end of the second substrate is inserted into the second hole, and the first substrate and the second substrate are bonded; the second substrate is provided with a third hole, and one end of the connecting member passes through the third hole and is connected to the implant; the first substrate is provided with a first positioning block, and the first positioning block is arranged on the inner wall of the second hole; the second substrate is provided with a first positioning groove, and the first positioning block is clamped with the first positioning groove; or, The first base is provided with a first hole, a second hole and an anti-rotation hole, the first hole, the second hole and the anti-rotation hole are coaxially arranged, the diameter of the first hole is larger than the diameter of the second hole, and the second hole connects the first hole and the anti-rotation hole; the first end of the second base is provided with an anti-rotation structure, and the anti-rotation structure and the anti-rotation hole are plugged in; the second base is provided with a third hole, and the connecting piece passes through the first hole, the second hole and one end of the third hole and is connected to the implant; a second positioning groove is provided in the anti-rotation hole, and a second positioning block is provided on the second base, and the second positioning block is clamped in the second positioning groove.

2. A dental implant system according to claim 1, It is characterized in that The length of the implant is 8 mm, 10 mm, 12 mm or 14 mm.

3. A dental implant system according to claim 1, It is characterized in that The implant is provided with a thread, the thread profile of which is an isosceles trapezoid, the thread pitch of which is 0.5 to 1.4 mm, and the thread depth of which is 0.2 to 0.7 mm.

4. A dental implant system according to claim 1, It is characterized in that The implant comprises a gingival segment, and the roughness of the outer surface of the gingival segment is 0.2-0.4 μm.

5. A dental implant system according to claim 1, It is characterized in that The implant comprises a first surface, the base comprises a second surface, and the first surface and the second surface are sealed and connected; The roughness of the first surface and the second surface are both 0.2-0.4 μm.

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