Offset embedded dental implant

Abstract

The invention relates to the technical field of dental implant oral medical treatment, and provides an offset embedded dental implant, which comprises an implant, an abutment, a dental crown and a fastener, the implant is used for being arranged in an alveolar bone, the dental crown is a split dental crown, the dental crown comprises a base dental crown and at least one branch dental crown, and the base dental crown and the branch dental crown are arranged in the implant. The branch dental crowns are sequentially arranged above the base dental crown in a stacked mode in the occlusion stress direction, the number of the fasteners is at least two, the base dental crown and the branch dental crowns correspond to the fasteners respectively, the abutment is arranged on the base dental crown, and the fasteners penetrate through the abutment to be connected with the implant. The branch dental crown is fixed through the fastener, and the fixing point of the branch dental crown and the fixing point of the base dental crown are relatively offset. According to the technical scheme, the problem of complications such as tooth plugging caused by a gap between the implant tooth and the natural tooth due to toppling of adjacent natural teeth in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dental implant oral medical treatment, and in particular to an offset embedded dental implant. Background Art

[0002] Artificial crowns are usually divided into metal crowns, metal porcelain crowns, all-ceramic crown restorations, metal plastic crowns, etc. The connection methods of the implant superstructure are divided into: screw retention, adhesive retention, and integrated crown. Figure 1 For dental implants, natural teeth may become tilted due to displacement over time, looseness or defects caused by periodontitis, which affects the installation of dental implants. On the other hand, gaps will gradually form between adjacent surfaces, leading to food impaction, which is considered to be one of the most common complications after fixed tooth restoration. Long-term food impaction can easily cause damage to the tooth and periodontal tissues, as well as peri-implantitis and alveolar bone absorption, which will have an adverse effect on the long-term stability and aesthetics of the implant, reduce the chewing comfort of the patient, and affect the quality of life.

[0003] In the prior art, in order to solve the above-mentioned problem, a part of the tilted natural tooth is often sacrificed and a part of the natural tooth close to the implant is ground off, thereby providing a limited installation and implantation space for the implant. However, the above method has certain defects. First, it causes certain damage to the natural tooth, and grinding off part of the crown makes the crown thinner; second, even if a part of the tilted natural tooth is ground off, the installation space is still relatively limited, which leads to a relatively large gap between the implant and the natural tooth, resulting in tooth blockage. Therefore, based on the above-mentioned problems, a new implant structure is needed to solve the above problems. Summary of the invention

[0004] The present invention provides an offset embedded dental implant, which solves the problem in the prior art that due to the tilting of adjacent natural teeth, there is a gap between the dental implant and the natural teeth, which leads to complications such as stuck teeth.

[0005] The technical solution of the present invention is as follows:

[0006] An offset embedded dental implant, the dental implant comprises an implant, an abutment, a crown and a fastener, wherein the implant is used to be arranged in the alveolar bone, the crown is arranged as a split crown, the crown comprises a base crown and at least one sub-crown, the sub-crowns are sequentially stacked above the base crown along the occlusal force direction, at least two fasteners are arranged, the base crown and each sub-crown correspond to one fastener respectively, the abutment is arranged on the base crown, the fastener passes through the abutment and is connected to the implant, the sub-crown is fixed by the fastener, and the fixing point of the sub-crown is relatively offset from the fixing point of the base crown.

[0007] The dental implant further comprises at least one inlay;

[0008] The inlay is arranged between the base crown and the partial crown, and / or

[0009] The inlay is arranged between the partial crowns.

[0010] The embedding body comprises a first fixing end and a second fixing end, wherein the first fixing end and the second fixing end are relatively offset, and both the first fixing end and the second fixing end are provided with a fixing hole for the fastener to pass through.

[0011] The embedding body further comprises a first supporting portion and a second supporting portion, wherein the first supporting portion and the second supporting portion are respectively arranged on both sides of a line connecting the first fixing end and the second fixing end.

[0012] A lateral crown body is provided at the bottom of the divided tooth crown, and the lateral crown body is used to buckle with the base crown or the divided tooth crown below the divided tooth crown.

[0013] The inlay and the base crown are integrally formed.

[0014] Positioning holes are arranged on the first supporting part and the second supporting part, and positioning protrusions are correspondingly arranged on the partial tooth crowns adjacent to the first supporting part and the second supporting part.

[0015] The fastener is provided with threads, and the fastener is fixed by threaded connection.

[0016] The working principle and beneficial effects of the present invention are:

[0017] The present invention discloses an offset embedded dental implant. Specifically, the implant is implanted in the alveolar bone, and then the installation space is evaluated in combination with the actual inclination of the natural teeth on both sides of the implant site. According to the size of the space and the inclination angle of the natural teeth on both sides of the implant site, a base crown of appropriate size is selected. The bottom of the base crown is provided with a base, which is connected to the implant. A fastener is inserted from the upper surface of the base crown through the base and connected to the implant to form a lock, so as to fix the base crown. The size of the base crown is smaller than the installation space between the inclined natural teeth, which can reduce the difficulty of installation relatively. Then, a plurality of sub-crowns can be installed on the base crown in sequence, and the installation order of the sub-crowns is designed along the direction of occlusal force. The split crown adjacent to the base crown is connected to the base crown by a fastener, and the fastener passes through the split crown and is connected to the upper surface of the base crown. The fasteners for fixing the base crown and the fasteners for fixing the split crown are relatively offset in their respective fixing points. Similarly, when the split crown is further installed on the split crown, the offset fixing point method is still adopted. By analogy, considering the inclination of the natural teeth on both sides of the implant position, the one-piece integral crown cannot be placed vertically, which will inevitably lead to a gap with the adjacent natural teeth. Therefore, the present invention is based on the technical concept of offset embedded installation of the split crown, which overcomes the difficulty of vertical placement and also makes the implant better fit with the adjacent natural teeth, avoiding the generation of large gaps, resulting in stuck teeth and affecting the patient experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the structure of dental implant in the prior art;

[0020] Figure 2 It is a schematic structural diagram of one embodiment of the dental implant of the present invention, wherein the structure of the multi-layer crown is shown;

[0021] Figure 3 It is a schematic structural diagram of another embodiment of the dental implant of the present invention, wherein the structure of a single-layer split crown is shown;

[0022] Figure 4 It is a schematic diagram of the specific structure of one embodiment of the dental implant in the present invention, wherein the structure of the connection between the sub-crown and the base crown is shown;

[0023] Figure 5 for Figure 4 A cross-sectional view along the AA direction, showing the structure of the embedded body connection;

[0024] In the figure: 1. implant, 2. abutment, 3. fastener, 4. base crown, 5. branch crown, 6. embedding body, 7. first fixed end, 8. second fixed end, 9. first supporting part, 10. second supporting part, 11. side crown body, 12. positioning hole, 13. positioning protrusion. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 2 to Figure 5 As shown, this embodiment proposes an offset embedded dental implant, the dental implant includes an implant 1, an abutment 2, a crown and a fastener 3, wherein the implant 1 is used to be arranged in the alveolar bone, the crown is arranged as a split crown, the crown includes a base crown 4 and at least one sub-crown 5, the sub-crown 5 is sequentially stacked above the base crown 4 along the occlusal force direction, the fastener 3 is set to at least two, the base crown 4 and each of the sub-crowns 5 corresponds to one fastener 3 respectively, the abutment 2 is arranged on the base crown 4, the fastener 3 passes through the abutment 2 and is connected to the implant 1, the sub-crown 5 is fixed by the fastener 3, and the fixing point of the sub-crown 5 is relatively offset from the fixing point of the base crown 4.

[0027] In the present embodiment, an offset embedded dental implant is disclosed. Specifically, an implant 1 is implanted in the alveolar bone, and then the installation space is evaluated in combination with the actual inclination of the natural teeth on both sides of the implant site. According to the size of the space and the inclination angle of the natural teeth on both sides of the implant site, a base crown 4 of appropriate size is selected. A base 2 is provided at the bottom of the base crown 4, and the base 2 is connected to the implant 1. A fastener 3 is inserted from the upper surface of the base crown 4 through the base 2 and connected to the implant 1 to form a lock, and the base crown 4 is fixed. The size of the base crown 4 is smaller than the installation space between the inclined natural teeth, which can reduce the difficulty of installation. Then, a plurality of sub-crowns 5 can be installed on the base crown 4 in sequence, and the installation order of the sub-crowns 5 is arranged along the direction of the occlusal force. In the design, the sub-crown 5 adjacent to the base crown 4 is connected to the base crown 4 through the fastener 3, and the fastener 3 passes through the sub-crown 5 and is connected to the upper surface of the base crown 4. The fastener 3 fixing the base crown 4 and the fastener 3 fixing the sub-crown 5 are relatively offset in their respective fixing points. Similarly, when the sub-crown 5 is further installed on the sub-crown 5, the offset fixing point method is still adopted. By analogy, considering the inclination of the natural teeth on both sides of the implant position, the installation of an integrated integral crown cannot be vertically inserted, which will inevitably lead to a gap with the adjacent natural teeth. Therefore, the present invention is based on the technical conception of offset embedded installation of the split crown, which overcomes the difficulty of vertical insertion, and also makes the implant better fit with the adjacent natural teeth, avoiding the generation of a large gap, resulting in tooth blockage and affecting the patient's experience.

[0028] In some conceivable embodiments, the split crown can be a combination of a base crown 4 and a sub-crown 5, or a combination of a base crown 4 and multiple sub-crowns 5. This is not restrictive and can be reasonably selected based on the installation space and the inclination of the natural teeth on the adjacent side of the implant site.

[0029] For example, taking a combination of a base crown 4 and a branch crown 5 as an example, during installation, first, a smaller size, smaller than the installation space of the implant position, even if the adjacent natural tooth at the implant position is tilted, the base crown 4 is installed vertically, the base 2 on the base crown 4 is positioned on the implant 1, and then the fastener 3 passes through the base crown 4 and the base 2 to be connected to the implant 1, the base crown 4 is fixed to the implant 1 by the fastener 3, and then the branch crown 5 is installed above the base crown 4, and then the fastener 3 is passed through the branch crown 5 to be connected to the base crown 4, and the branch crown is fixed. 5 is fixed, and a fixing hole for fixing the fastener 3 can be provided on the base crown 4. Since the base crown 4 can avoid the inclined natural teeth for vertical installation, the relatively short branch crown 5 is installed on the base crown 4, which can also adapt to the inclined natural teeth and avoid large gaps on the sides of the natural teeth. At the same time, the fastener 3 for fixing the branch crown 5 and the fastener 3 for fixing the base crown 4 are relatively offset from each other, thereby greatly improving the flexibility of installation. At the same time, it can also overcome the problem of stuck teeth caused by the side gap caused by the one-piece crown in the prior art.

[0030] The dental implant further comprises at least one embedding body 6;

[0031] The inlay 6 is arranged between the base crown 4 and the partial crown 5, and / or

[0032] The inlay 6 is arranged between the partial crowns 5 .

[0033] On the basis of the above embodiment, the dental implant further includes at least one embedding body 6. As described in the above embodiment, the split crown can adopt a combination of a base crown 4 and a sub-crown 5, or a combination of a base crown 4 and multiple sub-crowns 5. When the split crown can adopt a combination of a base crown 4 and a sub-crown 5, the embedding body 6 is used to be installed between the base crown 4 and the sub-crown 5. When a combination of a base crown 4 and multiple sub-crowns 5 is adopted, the embedding body 6 is installed between the base crown 4 and the sub-crown 5 and between the sub-crowns 5. The embedding body 6 helps to improve the connection strength between the split crowns and improve the force uniformity and stability between the split crowns during occlusion. It should be noted that the embedding body 6 is a type of component installed in the connector at the connection of the split crown, and the embedding bodies 6 at different positions may have certain differences in size and shape.

[0034] It is conceivable that the inlay 6 is located at the connection of the split crown. Specifically, the inlay 6 can be arranged on the crown located below by integral molding or integrated installation, such as being located on the upper surface of the base crown 4 or the upper surface of the split crown 5. In other conceivable embodiments, the inlay 6 can also be fixed to the upper surface of the base crown 4 or the split crown 5 by the fastener 3. The above are all possible embodiments, which are not restrictive, and other feasible installation methods can also be adopted.

[0035] The embedded body 6 includes a first fixed end 7 and a second fixed end 8 , the first fixed end 7 and the second fixed end 8 are relatively offset, and both the first fixed end 7 and the second fixed end 8 are provided with a fixing hole for the fastener 3 to pass through.

[0036] In this embodiment, the embedding body 6 is installed at the connection of the split crown. The example of the base crown 4 and a split crown 5 is still used for explanation. The embedding body 6 is installed on the upper surface of the base crown 4. The embedding body 6 includes a first fixed end 7 and a second fixed end 8. The first fixed end 7 and the second fixed end 8 are both provided with fixing holes for the fastener 3 to pass through. The first fixed end 7 and the second fixed end 8 are relatively offset. During installation, the embedding body 6 can be integrated or disassembled and arranged on the top of the base crown 4. When the base crown 4 is fixed, the fastener 3 passes through the first fixed end 7 and is connected to the implant 1 to fix the embedding body 6 on the top of the base crown 4. Then, when the split crown 5 is installed on the base crown 4, the fastener 3 passes through the split crown 5 and then passes through the second fixed end 8 to be connected to the base crown 4, thereby fixing it. The embedding body 6 is installed between the split crown 5 and the base crown 4 through the fixation at both ends. The existence of the embedding body 6 improves the overall connection stability of the split crown on the one hand, and on the other hand, it also improves the uniformity and dispersion of the occlusal force of the crown, thereby improving the practicality of the split crown.

[0037] The embedding body 6 further includes a first supporting portion 9 and a second supporting portion 10 , and the first supporting portion 9 and the second supporting portion 10 are respectively arranged on both sides of a line connecting the first fixing end 7 and the second fixing end 8 .

[0038] On the basis of the above embodiment, the embedding body 6 also includes a first supporting portion 9 and a second supporting portion 10, which are located on both sides of the line connecting the first fixed end 7 and the second fixed end 8. The first supporting portion 9 and the second supporting portion 10 improve the stability of the embedding body 6. At the same time, the embedding body 6 between the split crown 5 and the base crown 4 provides more support for the force of the split crown 5, and can more effectively disperse and transmit the force of the split crown 5 during occlusion to the base crown 4 and the implant 1, thereby improving the stability of the split crown during occlusion.

[0039] It should be noted that the specific shapes and sizes of the first supporting portion 9 and the second supporting portion 10 on both sides of the embedding body 6, and the first fixed end 7 and the second fixed end 8 can be adaptively adjusted according to the actual situation of the teeth to achieve the best fit, and the above is an interpretation and limitation of the relative positions of the first fixed end 7, the second fixed end 8, and the first supporting portion 9 and the second supporting portion 10 and their functionality. The structure based on the above technical concept but only different in shape and size should be understood to be within the above structural range.

[0040] A lateral crown body 11 is disposed at the bottom of the partial crown 5 , and the lateral crown body 11 is used to buckle with the base crown 4 or the partial crown 5 below the partial crown 5 .

[0041] In this embodiment, a side surrounding crown body 11 is further provided at the bottom of the split crown 5. The side surrounding crown body 11 is a relatively thin crown body. The side surrounding crown body 11 forms a buckled cap-shaped structure at the bottom of the split crown 5. The split crown 5 can be buckled with the top of the base crown 4 or the top of the split crown 5 when installed. The side surrounding crown body 11 can be a closed annular crown body or a semi-open side surrounding crown body 11, and can be a three-sided crown body, a two-sided crown body, etc., and can be adaptively designed according to actual installation needs. The side surrounding crown body 11 is provided to facilitate installation on the one hand, and on the other hand, it can also make the side surface of the split crown transition smooth and improve the surface quality.

[0042] The embedding body 6 and the base crown 4 are integrally formed.

[0043] In this embodiment, the embedded body 6 and the base crown 4 are designed with an integrally formed structure, that is, the embedded body 6 is integrated with the upper surface of the base crown 4. The integrated installation can improve the convenience of installation.

[0044] Positioning holes 12 are provided on the first supporting portion 9 and the second supporting portion 10 , and positioning protrusions 13 are correspondingly provided on the partial crowns 5 adjacent to the first supporting portion 9 and the second supporting portion 10 .

[0045] On the basis of the above embodiment, a positioning hole 12 is further provided on the first support portion 9 and the second support portion 10, and a positioning protrusion 13 corresponding to its position can be provided on the corresponding split crown. During installation, the positioning protrusion 13 on the split crown 5 is inserted into the positioning hole 12 on the first support portion 9 and the second support portion 10, thereby improving the installation accuracy and providing a certain operation reference for the operator, so that the installation of the split crown can be closer to the actual design position, thereby making the implant better fit the patient.

[0046] The fastener 3 is provided with threads, and the fastener 3 is fixed by threaded connection.

[0047] In this embodiment, the fastener 3 is provided with threads, and the fastener 3 is installed and fixed by the threads. The threads can provide a relatively stable locking force and are relatively more reliable. At the same time, if maintenance occurs, the threaded connection can also be disassembled, which is relatively convenient.

[0048] 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. An offset embedded dental implant, characterized in that: The dental implant comprises an implant (1), a base (2), a crown and a fastener (3), wherein the implant (1) is used to be arranged in an alveolar bone, the crown is arranged as a split crown, the crown comprises a base crown (4) and at least one sub-crown (5), the sub-crown (5) is arranged in sequence and stacked on the base crown (4) along the occlusal force direction, at least two fasteners (3) are arranged, the base crown (4) and each sub-crown (5) respectively correspond to one fastener (3), the base (2) is arranged on the base crown (4), the fastener (3) passes through the base (2) and is connected to the implant (1), the sub-crown (5) is fixed by the fastener (3), and the fixing point of the sub-crown (5) is relatively offset from the fixing point of the base crown (4).

2. The offset embedded dental implant according to claim 1, characterized in that: The dental implant further comprises at least one embedding body (6); The inlay (6) is arranged between the base crown (4) and the partial crown (5), and / or The inlay (6) is arranged between the partial crowns (5).

3. The offset embedded dental implant according to claim 2, characterized in that: The embedded body (6) comprises a first fixed end (7) and a second fixed end (8), the first fixed end (7) and the second fixed end (8) are relatively offset, and the first fixed end (7) and the second fixed end (8) are both provided with a fixing hole for the fastener (3) to pass through.

4. The offset embedded dental implant according to claim 3, characterized in that: The embedding body (6) further comprises a first supporting portion (9) and a second supporting portion (10), wherein the first supporting portion (9) and the second supporting portion (10) are respectively arranged on both sides of a line connecting the first fixed end (7) and the second fixed end (8).

5. The offset embedded dental implant according to claim 1, characterized in that: The bottom of the tooth crown (5) is provided with a lateral crown body (11), and the lateral crown body (11) is used to buckle with the base crown (4) or the tooth crown (5) below the tooth crown (5).

6. The offset embedded dental implant according to claim 2, characterized in that: The embedding body (6) and the base crown (4) are integrally formed.

7. The offset embedded dental implant according to claim 4, characterized in that: The first supporting portion (9) and the second supporting portion (10) are provided with positioning holes (12), and the partial tooth crowns (5) adjacent to the first supporting portion (9) and the second supporting portion (10) are correspondingly provided with positioning protrusions (13).

8. The offset embedded dental implant according to claim 1, characterized in that: The fastener (3) is provided with threads, and the fastener (3) is fixed by threaded connection.

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