CN203647507U - Multiple-piece type tooth implantation structure - Google Patents
Multiple-piece type tooth implantation structure Download PDFInfo
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- CN203647507U CN203647507U CN201320880432.7U CN201320880432U CN203647507U CN 203647507 U CN203647507 U CN 203647507U CN 201320880432 U CN201320880432 U CN 201320880432U CN 203647507 U CN203647507 U CN 203647507U
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- tooth body
- piece type
- tooth implantation
- planting
- hole
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Abstract
The utility model relates to a multiple-piece type tooth implantation structure. The multiple-piece type tooth implantation structure comprises a tooth implantation body, a fixing base, a fixing sleeve and an extension spring, wherein the tooth implantation body is a porous tantalum piece of which the porosity is 60-70 percent; a through hole penetrating up and down is formed inside the tooth implantation body; general screw threads are arranged on the internal surface of the tooth implantation body on the middle upper part of the through hole; the extension spring is arranged inside the tooth implantation body on the lower part of the through hole; a groove communicated with the through hole is further formed in the top of the tooth implantation body; a fixing sleeve is correspondingly mounted inside the groove in a match mode; another through hole penetrating up and down is further formed inside the fixing sleeve; the lower part of the fixing base is provided with a threaded rod; the threaded rod is matched with the general screw threads on the internal surface of the tooth implantation body after penetrating through the through hole inside the fixing sleeve; the lower end pat of the threaded rod and one end of the extension spring are connected. The multiple-piece type tooth implantation structure is simple in structure and high in strength, can be used for closely connecting the tooth implantation body and the alveolar bone and well avoiding the interference of alternating force, and has 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 and plants dental structure.
Background technology
Oral cavity implanting tooth is to repair at present a mouthful best method for 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 the tooth body of planting of the prior art exists certain defect on structure arranges, and causes its mechanical property and biocompatibility poor, after long-time use, there will be repulsion with tissue, and affect the problems such as its service life.In addition, existing planting in dental structure, its retained abutment usually adopts single being threaded with planting between tooth body, and after adopting this structure to connect, 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, its reliability is lower.
Utility model content
The purpose of this utility model is to provide a kind of multi-piece type to plant dental structure, this multi-piece type is planted dental structure and is had simple in structure, intensity compared with advantages of higher, and can closely be connected with alveolar bone planting tooth body in real time, can avoid preferably its interference that is subject to alternating force, have good biocompatibility concurrently.
The purpose of this utility model is achieved in that
A kind of multi-piece type is planted dental structure, it 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; The inner surface of tooth body of planting of this through hole middle and upper part is provided with regular screw threads, 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, plant the regular screw threads that the inner surface of tooth body arranges and coordinate with described, 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 this and plant the mechanical property requirements of tooth body in 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.
Further, the above-mentioned tooth body of planting is the cylinder being made up of cervical region, middle part and afterbody.
Further, above-mentionedly plant the cervical region of tooth body and the diameter at middle part is consistent, and the outer surface at middle part is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody is narrow compared with cervical region or 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 is fixed on after maintenance sleeve, can outside this maintenance sleeve, Corresponding matching be installed by corona, thereby realize the firm 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, plant tooth body and adopt regular screw threads to be connected with retained abutment, easily produce self-locking, good stress performance;
2, 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;
3, plant tooth body itself and adopt porous tantalum product, well meet its mechanical property, also greatly increase the biocompatibility that this plants dental structure simultaneously, improved service life and implanted comfort level, increased stability and anti-verticity after this artificial prosthesis is implanted;
4, 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.
Brief description of the drawings
Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram that multi-piece type described in this utility model embodiment 1 is planted dental structure.
Fig. 2 is the structural representation that described in Fig. 1, multi-piece type is planted dental structure 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 is planted 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; The inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts is provided with regular screw threads, and tooth body 1 inside of planting of these through hole 3 bottoms is 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, after the perforation 10 that this threaded rod 5 passes in maintenance sleeve 9, coordinate, and the bottom of this threaded rod 5 are connected with one end of extension spring 4 with the regular screw threads of planting tooth body 1 inner surface setting; It plants the cylinder of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8; The cervical region 6 of planting tooth body 1 is consistent with the diameter at middle part 7, and the outer surface at middle part 7 is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody 8 is narrow compared with cervical region 6 or 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. multi-piece type is planted a dental structure, it 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; The inner surface of tooth body (1) of planting of this through hole (3) middle and upper part is provided with regular screw threads, 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), coordinate with described regular screw threads of planting tooth body (1) inner surface setting, and the bottom of this threaded rod (5) is connected with one end of described extension spring (4).
2. multi-piece type is planted dental structure according to claim 1, it is characterized in that: described in plant tooth body (1) for the cylinder that formed by cervical region (6), middle part (7) and afterbody (8).
3. multi-piece type is planted dental structure according to claim 2, it is characterized in that: described in to plant the cervical region (6) of tooth body (1) consistent with the diameter of middle part (7), and the outer surface of middle part (7) is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody (8) is narrow compared with cervical region (6) or middle part (7).
4. plant dental structure according to the arbitrary described multi-piece type 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. plant dental structure according to the arbitrary described multi-piece type 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 is planted dental structure according to claim 4, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880432.7U CN203647507U (en) | 2013-12-30 | 2013-12-30 | Multiple-piece type tooth implantation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320880432.7U CN203647507U (en) | 2013-12-30 | 2013-12-30 | Multiple-piece type tooth implantation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203647507U true CN203647507U (en) | 2014-06-18 |
Family
ID=50913953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320880432.7U Expired - Fee Related CN203647507U (en) | 2013-12-30 | 2013-12-30 | Multiple-piece type tooth implantation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203647507U (en) |
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2013
- 2013-12-30 CN CN201320880432.7U patent/CN203647507U/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: 20140618 Termination date: 20201230 |