Dental implant abutment structure and dental implant assembly

Abstract

The disclosure provides an embedded tooth base structure and an embedded tooth assembly, the structure comprising an implant, a base, a silica gel block, a crown, an upper fixing screw and a lower fixing screw, the base being provided with a first mounting threaded hole, a transition channel and a second mounting threaded hole in sequence, the silica gel block blocking the transition channel, the upper fixing screw comprising a contact portion and a first threaded portion connected to each other, the contact portion abutting against the crown, the lower fixing screw comprising a second threaded portion, an intermediate portion and a third threaded portion connected in sequence, the top end of the second threaded portion abutting against the silica gel block. The top end of the second threaded portion of the lower fixing screw abuts against the silica gel block, after the installation of the base and the crown is completed, the base and the crown are fixed through the upper fixing screw, the contact portion of the upper fixing screw abuts against the crown after locking, and the top end of the first threaded portion of the upper fixing screw abuts against the silica gel block, so that the silica gel block absorbs the locking force of the first threaded portion, and the probability of the upper fixing screw being excessively locked and damaging the crown or the base is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of dental implant technology, and in particular to an inlay abutment structure and inlay assembly. Background Technology

[0002] The abutment is an important connecting component in dental implant surgery. It connects to the implant via a central screw and serves as the mounting base for the crown.

[0003] In existing solutions, both the upper and lower parts of the abutment are installed using fixing screws, one of which is installed in the implant, and the other is used to fix the crown. Another example is the abutment and implant for a non-adhesive crown disclosed in Chinese patent CN118526305A, where the crown is fixed by a crown connector, and the threaded portion of the crown connector is connected to the abutment. However, after the fixing screw / crown connector is fixed to the crown, a certain gap exists between the fixing screw / crown connector and the abutment. If the fixing screw / crown connector is tightened further after the crown is fixed, the top of the connector will exert more force on the crown and abutment, subjecting them to outward compressive force, which can damage the crown or abutment and reduce the stability of the connection. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide an inlay abutment structure and inlay assembly that prevents over-tightening of the crown and reduces the probability of damage to the crown or abutment.

[0005] The purpose of this disclosure is achieved through the following technical solution: A dental abutment structure includes an implant, an abutment, a silicone block, a crown, an upper fixation screw, and a lower fixation screw. The implant has a communicating installation channel and a bottom threaded hole; the abutment has a first installation threaded hole, a transition channel, and a second installation threaded hole that are sequentially connected, with a portion of the abutment structure located within the installation channel; the silicone block seals the transition channel; the crown is placed on the abutment and has a recess; the upper fixation screw includes a connected abutment portion and a first threaded portion, the first threaded portion passing sequentially through the recess and the first installation threaded hole, the abutment portion abutting against the crown, and the tip of the first threaded portion abutting against the silicone block; the lower fixation screw includes a second threaded portion, a middle portion, and a third threaded portion that are sequentially connected, the second threaded portion located in the second installation threaded hole, and the tip of the second threaded portion abutting against the silicone block, the middle portion located in the installation channel, and the middle portion abutting against both the abutment and the implant, and the third threaded portion located in the bottom threaded hole.

[0006] In one embodiment, the angle between the axis of the first mounting threaded hole and the axis of the second mounting threaded hole is 10°-30°.

[0007] In one embodiment, the abutment includes a first connecting portion, a connecting transition portion, and a second connecting portion connected in sequence. The second connecting portion is located in the mounting channel. The intermediate portion abuts against the second connecting portion and the implant, respectively. The first connecting portion is connected to the crown through the first threaded portion of the upper fixing screw.

[0008] In one embodiment, the first mounting threaded hole is formed in the first connecting portion, the transition channel is formed in the connecting transition portion, and the second mounting threaded hole is formed in the second connecting portion.

[0009] In one embodiment, the crown has an abutment channel that communicates with the recess, and the abutment portion is located in the abutment channel.

[0010] In one embodiment, the crown is further provided with a receiving groove, the bottom of which is connected to the clearance opening, and the portion of the abutment structure facing away from the contact channel is located in the receiving groove.

[0011] In one embodiment, the cross-sectional diameter of the first mounting threaded hole is smaller than the cross-sectional diameter of the transition channel.

[0012] In one embodiment, the cross-sectional diameter of the second mounting threaded hole is smaller than the cross-sectional diameter of the transition channel.

[0013] In one embodiment, the outer wall of the implant has a threaded mounting portion.

[0014] A dental inlay assembly, comprising the dental inlay abutment structure described in any of the embodiments.

[0015] Compared with the prior art, this disclosure has at least the following advantages: Because the silicone block seals the transition channel of the abutment, after the abutment and implant are installed with the lower fixing screw, the tip of the second thread of the lower fixing screw abuts against the silicone block, and the middle part abuts against the abutment and implant. This allows the silicone block to absorb the locking force of the second thread, preventing the lower fixing screw from being over-tightened. In addition, after the abutment and crown are installed, the abutment and crown are fixed with the upper fixing screw. After tightening, the abutting part of the upper fixing screw abuts against the crown, and the tip of the first thread of the upper fixing screw abuts against the silicone block. This allows the silicone block to absorb the locking force of the first thread, reducing the force of the abutting part of the upper fixing screw on the crown and reducing the chance of the upper fixing screw over-tightening and damaging the crown or abutment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural cross-sectional view of the inlay abutment structure in one embodiment; Figure 2 for Figure 1 A partial cross-sectional view of the tooth abutment structure shown at an angle; Figure 3 for Figure 1 A partial structural diagram of the inlay abutment structure at one angle is shown. Figure 4 for Figure 3 The shown is a cross-sectional view of the inlay abutment structure at an angle.

[0018] Figure descriptions: 10. Inlay abutment structure; 100. Implant; 101. Installation channel; 102. Bottom threaded hole; 103. Threaded mounting part; 200. Abutment; 201. First mounting threaded hole; 202. Transition channel; 203. Second mounting threaded hole; 210. First connecting part; 220. Connecting transition part; 230. Second connecting part; 300. Silicone block; 400. Crown; 401. Recessed opening; 402. Abutment channel; 403. Receiving groove; 500. Upper fixing screw; 510. Abutment part; 520. First threaded part; 600. Lower fixing screw; 610. Second threaded part; 620. Middle part; 630. Third threaded part. Detailed Implementation

[0019] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: Please see Figures 1 to 4 This is an embodiment of the inlay abutment structure 10 of the present invention, comprising an implant 100, an abutment 200, a silicone block 300, a crown 400, an upper fixing screw 500, and a lower fixing screw 600. The implant 100 has a communicating installation channel 101 and a bottom threaded hole 102; the abutment 200 has a first installation threaded hole 201, a transition channel 202, and a second installation threaded hole 203 connected in sequence, with a portion of the abutment 200 located within the installation channel 101; the silicone block 300 seals the transition channel 202; the crown 400 is disposed on the abutment 200, and the crown 400 has a recess 401; the upper fixing screw 500 includes a connected abutment portion 510 and a first threaded portion 520, the first threaded portion 520 passing sequentially through the recess 401 and the first installation threaded hole 600. The threaded hole 201 is fitted, with the abutment portion 510 abutting against the crown 400, and the top end of the first threaded portion 520 abutting against the silicone block 300. The lower fixing screw 600 includes a second threaded portion 610, a middle portion 620, and a third threaded portion 630 connected in sequence. The second threaded portion 610 is located in the second mounting threaded hole 203, and its top end abuts against the silicone block 300. The middle portion 620 is located in the mounting channel 101, and its middle portion abuts against both the abutment 200 and the implant 100. The third threaded portion 630 is located in the bottom threaded hole 102. The silicone block 300 blocks the transition channel 202 so that both the upper fixing screw 500 and the lower fixing screw 600 abut against the silicone block 300, thereby allowing the silicone block 300 to absorb the locking force of the upper fixing screw 500 and the lower fixing screw 600.

[0023] In the above embodiment, since the silicone block 300 blocks the transition channel 202 of the abutment 200, after the abutment 200 and the implant 100 are installed by the lower fixing screw 600, the top of the second threaded portion 610 of the lower fixing screw 600 abuts against the silicone block 300, and the middle portion 620 abuts against the abutment 200 and the implant 100, so that the silicone block 300 absorbs the locking force of the second threaded portion 610, preventing the lower fixing screw 600 from being over-tightened. In addition, when the abutment 200 and the crown 40 are installed, Afterwards, the abutment 200 and crown 400 are fixed by the upper fixing screw 500. After tightening, the abutment portion 510 of the upper fixing screw 500 abuts against the crown 400, and the tip of the first thread portion 520 of the upper fixing screw 500 abuts against the silicone block 300, so that the silicone block 300 absorbs the locking force of the first thread portion 520, reduces the force of the abutment portion 510 of the upper fixing screw 500 on the crown 400, and reduces the probability of the upper fixing screw 500 over-tightening and damaging the crown 400 or the abutment 200.

[0024] like Figure 2 As shown, in one embodiment, the angle formed by the axis X of the first mounting threaded hole 201 and the axis Y of the second mounting threaded hole 203 is 10°-30°. In this embodiment, the angle formed by the axis X of the first mounting threaded hole 201 and the axis Y of the second mounting threaded hole 203 is 20°.

[0025] like Figures 1 to 4 As shown, in one embodiment, the abutment 200 includes a first connecting portion 210, a connecting transition portion 220, and a second connecting portion 230 connected in sequence. The second connecting portion 230 is located in the mounting channel 101. The intermediate portion 620 abuts against the second connecting portion 230 and the implant 100 respectively, so that the abutment 200 and the implant 100 are connected by a lower fixing screw 600. The first connecting portion 210 is connected to the crown 400 through the first threaded portion 520 of the upper fixing screw 500, so that the abutment 200 and the crown 400 are connected by the upper fixing screw 500. Further, the first mounting threaded hole 201 is opened in the first connecting portion 210, the transition channel 202 is opened in the connecting transition portion 220, and the second mounting threaded hole 203 is opened in the second connecting portion 230.

[0026] In this embodiment, the angle formed by the axis of the first connecting portion 210 and the axis of the second connecting portion 230 is 10°-30°. Further, the angle formed by the axis of the first connecting portion 210 and the axis of the second connecting portion 230 is 20°, allowing the crown 400 to be mounted at an angle on the machine base 200 to meet the implant angle requirements. That is, the first mounting threaded hole 201 is formed in the first connecting portion 210, and the axis of the first mounting threaded hole 201 coincides with the axis of the first connecting portion 210; the second mounting threaded hole 203 is formed in the second connecting portion 230, and the axis of the second mounting threaded hole 203 coincides with the axis of the second connecting portion 230.

[0027] like Figure 1 and Figure 2 As shown, in one embodiment, the crown 400 has an abutment channel 402, which communicates with the clearance opening 401. The abutment portion 510 is located in the abutment channel 402. Thus, after the upper fixing screw 500 locks the crown 400 and the abutment 200, the abutment portion 510 will not protrude from the top of the crown 400, and will not affect the subsequent chewing function.

[0028] like Figure 1 and Figure 2 As shown, in one embodiment, the crown 400 is further provided with a receiving groove 403. The bottom of the receiving groove 403 is connected to the clearance opening 401. The part of the abutment 200 that is away from the abutment channel 402 is located in the receiving groove 403. In this embodiment, the first connecting part 210 is located in the receiving groove 403 so that the crown 400 is fitted onto the abutment 200. Then, the crown 400 and the abutment 200 are locked with a fixing screw 500 to ensure the connection stability between the crown 400 and the abutment 200.

[0029] In one embodiment, the cross-sectional diameter of the first mounting threaded hole 201 is smaller than the cross-sectional diameter of the transition channel 202, so that after the upper fixing screw 500 locks the crown 400 and the base 200, the tip of its first threaded portion 520 can fully abut against the silicone block 300.

[0030] In one embodiment, the cross-sectional diameter of the second mounting threaded hole 203 is smaller than the cross-sectional diameter of the transition channel 202, so that after the lower fixing screw 600 locks the implant 100 and the abutment 200, the top end of its second threaded portion 610 can fully abut against the silicone block 300.

[0031] like Figure 3 As shown, in one embodiment, the outer wall of the implant 100 has a threaded mounting portion 103, so that the implant 100 is threaded into the alveolar bone.

[0032] This disclosure also provides a dental inlay assembly, including the dental inlay abutment structure 10 as described in any embodiment.

[0033] Compared with the prior art, this disclosure has at least the following advantages: Because the silicone block 300 blocks the transition channel 202 of the abutment 200, after the abutment 200 and implant 100 are installed using the lower fixing screw 600, the tip of the second threaded portion 610 of the lower fixing screw 600 abuts against the silicone block 300, and the middle portion 620 abuts against the abutment 200 and implant 100. This allows the silicone block 300 to absorb the locking force of the second threaded portion 610, preventing the lower fixing screw 600 from being over-tightened. Furthermore, after the abutment 200 and crown 400 are installed, the... The abutment 200 and crown 400 are fixed by the upper fixing screw 500. After tightening, the abutting part 510 of the upper fixing screw 500 abuts against the crown 400, and the top of the first threaded part 520 of the upper fixing screw 500 abuts against the silicone block 300, so that the silicone block 300 absorbs the tightening force of the first threaded part 520, reduces the force of the abutting part 510 of the upper fixing screw 500 on the crown 400, and reduces the probability of the upper fixing screw 500 over-tightening and damaging the crown 400 or the abutment 200.

[0034] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A dental abutment structure, characterized in that, include: The implant has interconnected installation channels and threaded holes at the bottom; The base has a first mounting threaded hole, a transition channel and a second mounting threaded hole that are sequentially connected, and part of the structure of the base is located in the mounting channel; Silicone blocks are used to seal the transition channel; A dental crown is disposed on the abutment, and the dental crown has a recess opening; The upper fixing screw includes a connecting abutment portion and a first threaded portion. The first threaded portion passes through the clearance opening and the first mounting threaded hole in sequence. The abutment portion abuts against the crown, and the top end of the first threaded portion abuts against the silicone block. The lower fixing screw includes a second threaded portion, a middle portion and a third threaded portion connected in sequence. The second threaded portion is located in the second mounting threaded hole and the top end of the second threaded portion abuts against the silicone block. The middle portion is located in the mounting channel and abuts against the abutment and the implant respectively. The third threaded portion is located in the bottom threaded hole.

2. The inlay abutment structure according to claim 1, characterized in that, The angle between the axis of the first mounting threaded hole and the axis of the second mounting threaded hole is 10°-30°.

3. The inlay abutment structure according to claim 1, characterized in that, The abutment includes a first connecting part, a connecting transition part, and a second connecting part connected in sequence. At least a portion of the second connecting part is located in the mounting channel. The middle part abuts against the second connecting part and the implant respectively. The first connecting part is connected to the crown through the first threaded portion of the upper fixing screw.

4. The inlay abutment structure according to claim 3, characterized in that, The first mounting threaded hole is formed in the first connecting portion, the transition channel is formed in the connecting transition portion, and the second mounting threaded hole is formed in the second connecting portion.

5. The inlay abutment structure according to claim 1, characterized in that, The crown has an abutment channel, which communicates with the recess, and the abutment portion is located in the abutment channel.

6. The inlay abutment structure according to claim 5, characterized in that, The crown is also provided with a receiving groove, the bottom of which is connected to the clearance opening, and the part of the abutment that is away from the contact channel is located in the receiving groove.

7. The inlay abutment structure according to claim 1, characterized in that, The cross-sectional diameter of the first mounting threaded hole is smaller than the cross-sectional diameter of the transition channel.

8. The inlay abutment structure according to claim 1, characterized in that, The cross-sectional diameter of the second mounting threaded hole is smaller than the cross-sectional diameter of the transition channel.

9. The inlay abutment structure according to claim 1, characterized in that, The outer wall of the implant has a threaded mounting portion.

10. A tooth fitting assembly, characterized in that, Includes the inlay abutment structure as described in any one of claims 1-9.

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