CN203693785U - Multi-piece type dental tooth implantation structure - Google Patents
Multi-piece type dental tooth implantation structure Download PDFInfo
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- CN203693785U CN203693785U CN201320884049.9U CN201320884049U CN203693785U CN 203693785 U CN203693785 U CN 203693785U CN 201320884049 U CN201320884049 U CN 201320884049U CN 203693785 U CN203693785 U CN 203693785U
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- tooth body
- piece type
- tooth implantation
- tooth
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Abstract
The utility model relates to a multi-piece type dental tooth implantation structure. The multi-piece type dental tooth implantation structure comprises a tooth implantation body, a retention base, a retention sleeve and an extension spring, wherein the tooth implantation body uses a porous tantalum part, and the porosity is 60 to 70 percent; a through hole penetrating up and down is arranged in the tooth implantation body; a pipe thread which is provided with a 55-angle thread angle is arranged on the inner surface of the tooth implantation body in the middle-upper part of the through hole; the extension spring is arranged in the tooth implantation body in the lower part of the through hole; a groove communicated with the through hole is arranged on the top of the tooth implantation body; the retention sleeve is installed in the groove correspondingly; a perforation hole penetrating up and down is arranged in the retention sleeve; the lower part of the retention base is equipped with a thread rod; the thread rod passes through the perforated hole in the retention sleeve to be correspondingly matched with the pipe thread which is provided with the 55-angle thread angle and arranged on the inner surface of the tooth implantation body; moreover, the lower end of the thread rod is connected with one end of the extension spring. The structure has good connection sealing performance and horizontal mechanical property, and is not disturbed by alternating force. The multi-piece type dental tooth implantation structure has simple structure, high strength and good biocompatibility.
Description
Technical field
This utility model relates to Medical oral cavity manual tooth planting's medical apparatus and instruments, relates in particular to a kind of multi-piece type implant dental structure.
Background technology
Canine implant is the best method of repairing at present oral cavity inner teeth gear disappearance.Dental implant surgical of the prior art, normally plants tooth body by one and directly imbeds in advance dental bed, after above planting tooth body, install a retained abutment separation and that expose to dental bed surface, a corona is finally installed in this retained abutment again again, to realize the implantation of artificial tooth.
But, plant tooth body and in use can be subject to for a long time the effect of alternating force, particularly work as Dental Implant when mounted, if move past manyly to words lateral deviation, easily occur in a short time looseningly, and to plant the design of tooth body structure unreasonable due to existing, cause this becoming flexible can not again tighten at present, can only again plant, thereby increase the operations such as plantation again, cause significant wastage.And in existing implant dental structure, its retained abutment usually adopts single being threaded with planting between tooth body, and after adopting this structure to connect, it plants syndeton defective tightness between tooth body and retained abutment, be easy to cause impurity to enter in screw thread, affect being connected and fixed of the two, and the support force that its retained abutment that exposes to dental bed surface is subject to is in the horizontal direction lower, easily suffer the effect of horizontal lateral force and rupture, thereby its reliability is lower.In addition, it is poor that in existing design also usually there is mechanical property and biocompatibility in implant dental structure, there will be repulsion, and affect the problems such as its service life after long-time use with tissue.
Utility model content
The purpose of this utility model is to provide a kind of multi-piece type implant dental structure, it can closely be connected with alveolar bone planting tooth body in real time, in the sealing of its connection and horizontal direction, stressed property is better, can also avoid being subject to the interference of alternating force, simple in structure, intensity is higher, and has good biocompatibility concurrently.
The purpose of this utility model is achieved in that
A kind of multi-piece type implant dental structure, is characterized in that: it forms by planting tooth body, retained abutment, maintenance sleeve and extension spring; The described tooth body of planting adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body inside and is provided with the through hole running through up and down; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body of planting of this through hole middle and upper part, and the tooth body inside of planting of this through hole bottom is provided with extension spring; Described top of planting tooth body is also provided with the groove being communicated with described through hole, and in this groove, Corresponding matching is installed described maintenance sleeve; Described maintenance sleeve inner has a perforation running through up and down; Described retained abutment bottom is threaded rod, this threaded rod through the perforation in described maintenance sleeve after, with described to plant tooth form angle that the inner surface of tooth body arranges be the gas thread corresponding matching of 55 °, and the bottom of this threaded rod and one end of described extension spring are connected.
The porous tantalum product of above-mentioned porosity, can meet it and plant the mechanical property requirements of tooth body in multi-piece type implant dental structure, is closely connected reliably with alveolar bone to realize it.This porous tantalum product can adopt the preparations such as foam dipping method, die pressing.Through the discovery that studies for a long period of time: adopt the tooth physical ability of planting of porous tantalum product that bone is grown into and the structure of growing in forming, thereby organically combine as a whole with body bone tissue, in greatly having improved biocompatibility, also well meet its mechanical property, improve service life and implanted comfort level, having increased stability and anti-verticity after artificial prosthesis is implanted.In addition,, by being the gas thread Corresponding matching of 55 ° by threaded rod and the tooth form angle of planting the inner surface setting of tooth body, its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread.
Further, the above-mentioned tooth body of planting is the clava being made up of cervical region, middle part and afterbody.Further, the outer surface at above-mentioned middle part of planting tooth body is gas thread; The diameter of its afterbody is narrow compared with cervical region and middle part.The tooth body of planting of this structure setting has been realized with alveolar bone and being firmly connected, and has the effects such as the sinking of further preventing.
The top of above-mentioned retained abutment is Rotary-table, and one-body molded with the threaded rod of above-mentioned retained abutment bottom.The Rotary-table on its top can be installed corona in order to Corresponding matching, and has realized the implantation of artificial tooth.
Above-mentioned maintenance sleeve is torus, and the diameter of the perforation on its body top is greater than the diameter of its body underpunch.By the setting of this structure, the retained abutment top that can be further Rotary-table by its structure is fixedly limited in this maintenance sleeve, thereby has ensured the reliability of the two connection.
The utlity model has following beneficial effect:
1, planting tooth body and retained abutment, to adopt tooth form angle be the gas thread Corresponding matching of 55 °, and its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread.
2, by groove being set at the top of planting tooth body, and Corresponding matching is installed maintenance sleeve in this groove, afterwards by the threaded rod of retained abutment bottom through after this maintenance sleeve again with plant tooth body and be connected, thereby strengthen the retained abutment support force being subject in the horizontal direction, suffered the effect of horizontal lateral force and the probability that ruptures and greatly reduce it;
3, adopt the bottom that extension spring one end is fixed on to alveolar bone to continue that retained abutment is applied to elastic force, be fixed in the through hole of planting tooth body inside, ensured retained abutment all the time with plant tooth body close contact, itself apply the effect of power simultaneously by retained abutment to planting tooth body, make to plant the bottom close contact all the time of tooth body and alveolar bone; In use, if because external force makes to plant tooth body or retained abutment is loosening, extension spring makes it again keep close contact by elastic force, and then has ensured fixed effect;
4, plant tooth body itself and adopt porous tantalum product, well meet its mechanical property, also greatly increase the biocompatibility of this implant dental structure simultaneously, improved service life and implanted comfort level, increased stability and anti-verticity after this artificial prosthesis is implanted.
Brief description of the drawings
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the dental structure of multi-piece type implant described in this utility model embodiment 1.
Fig. 2 is the structural representation of the dental structure of multi-piece type implant described in Fig. 1 integrated connection.
Detailed description of the invention
Be below this utility model preferred embodiment, and be not intended to limit protection domain of the present utility model.
Embodiment 1
As shown in Fig. 1～2: a kind of multi-piece type implant dental structure, it forms by planting tooth body 1, retained abutment 2, maintenance sleeve 9 and extension spring 4; It is planted tooth body 1 and adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body 1 inside and is provided with the through hole 3 running through up and down; Also to be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts, and tooth body 1 inside of planting of these through hole 3 bottoms is also provided with extension spring 4; The top of planting tooth body 1 is also provided with the groove 11 being communicated with through hole 3, and the interior Corresponding matching of this groove 11 is installed maintenance sleeve 9; These maintenance sleeve 9 inside have a perforation running through up and down 10, and this maintenance sleeve 9 is torus shape, and the diameter of the perforation 10 on its body top is greater than the diameter of its body underpunch 10; Its retained abutment 2 bottoms are threaded rod 5, this threaded rod 5 through the perforation 10 in maintenance sleeve 9 after, be the gas thread corresponding matching of 55 ° with planting tooth form angle that the inner surface of tooth body 1 arranges, and the bottom of this threaded rod 5 is connected with one end of extension spring 4; It plants the clava of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8; The outer surface of planting the middle part 7 of tooth body 1 is gas thread; The diameter of its afterbody 8 is narrow compared with cervical region 6 and middle part 7; The top of retained abutment 2 is Rotary-table, and adopts medical titanium alloy through one-body molded with the threaded rod 5 of its underpart; After the maintenance sleeve 9 of the torus shape that the outside of retained abutment 2 connects, then in these maintenance sleeve 9 outside Corresponding matchings, coronas are installed, so the implantation that has realized artificial tooth be firmly connected.
In clinical practice, extension spring 4 one end are fixed on to the bottom of alveolar bone, the other end is fixed on the bottom of threaded rod 5 of retained abutment 2 bottoms to continue that retained abutment 2 is applied to elastic force, be fixed in the through hole 3 of planting tooth body 1 inside, ensured retained abutment 2 all the time with plant tooth body 1 close contact, itself apply the effect of power simultaneously by retained abutment 2 to planting tooth body 1, make to plant the bottom close contact all the time of tooth body 1 and alveolar bone; If, because external force makes to plant tooth body 1 or retained abutment 2 is loosening, extension spring 4 makes it again keep close contact by elastic force, and then has ensured fixed effect when use.
Claims (6)
1. a multi-piece type implant dental structure, is characterized in that: it forms by planting tooth body (1), retained abutment (2), maintenance sleeve (9) and extension spring (4); The described tooth body (1) of planting adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body (1) inside and is provided with the through hole (3) running through up and down; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body (1) of planting of this through hole (3) middle and upper part, and tooth body (1) inside of planting of this through hole (3) bottom is provided with extension spring (4); Described top of planting tooth body (1) is also provided with the groove (11) being communicated with described through hole (3), and the interior Corresponding matching of this groove (11) is installed described maintenance sleeve (9); Described maintenance sleeve (9) inside has a perforation running through up and down (10); Described retained abutment (2) bottom is threaded rod (5), this threaded rod (5) passes after the perforation (10) in described maintenance sleeve (9), with described to plant tooth form angle that the inner surface of tooth body (1) arranges be the gas thread corresponding matching of 55 °, and the bottom of this threaded rod (5) is connected with one end of described extension spring (4).
2. multi-piece type implant dental structure according to claim 1, is characterized in that: described in plant the clava of tooth body (1) for being formed by cervical region (6), middle part (7) and afterbody (8).
3. multi-piece type implant dental structure according to claim 2, is characterized in that: described in plant the middle part (7) of tooth body (1) outer surface be gas thread; The diameter of its afterbody (8) is narrow compared with cervical region (6) and middle part (7).
4. according to the arbitrary described multi-piece type implant dental structure of claim 1-3, it is characterized in that: the top of described retained abutment (2) is Rotary-table, and one-body molded with the threaded rod (5) of described retained abutment (2) bottom.
5. according to the arbitrary described multi-piece type implant dental structure of claim 1-3, it is characterized in that: described maintenance sleeve (9) is torus, and the diameter of the perforation on its body top (10) is greater than the diameter of its body underpunch (10).
6. multi-piece type implant dental structure according to claim 4, is characterized in that: described maintenance sleeve (9) is torus, and the diameter of the perforation on its body top (10) is greater than the diameter of its body underpunch (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884049.9U CN203693785U (en) | 2013-12-30 | 2013-12-30 | Multi-piece type dental tooth implantation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884049.9U CN203693785U (en) | 2013-12-30 | 2013-12-30 | Multi-piece type dental tooth implantation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693785U true CN203693785U (en) | 2014-07-09 |
Family
ID=51044299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884049.9U Expired - Fee Related CN203693785U (en) | 2013-12-30 | 2013-12-30 | Multi-piece type dental tooth implantation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203693785U (en) |
-
2013
- 2013-12-30 CN CN201320884049.9U patent/CN203693785U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20201230 |