CN203693784U - Combined tooth implantation structure - Google Patents
Combined tooth implantation structure Download PDFInfo
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- CN203693784U CN203693784U CN201320884020.0U CN201320884020U CN203693784U CN 203693784 U CN203693784 U CN 203693784U CN 201320884020 U CN201320884020 U CN 201320884020U CN 203693784 U CN203693784 U CN 203693784U
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- tooth body
- plant
- tooth
- planting
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Abstract
The utility model relates to a combined tooth implantation structure. The combined tooth implantation structure comprises a tooth implantation body, a retention base, a retention sleeve and an extension spring, wherein 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 tooth implantation body is a rod-shaped body which consists of a neck part, a middle part and a tail part; both the neck part and the tail part use porous tantalum parts, and the porosity is 60 to 70 percent. The combined tooth implantation structure provided by the utility model 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 combination and plants 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, wherein plant 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, plant between tooth body and tissue, also exist in conjunction with defective tightness reliable, easily produce the problems such as loosening, 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 combination to plant dental structure, this combination is planted dental structure and can be closely connected with alveolar bone planting tooth body in real time, the sealing of its connection and and horizontal direction on stressed property better, and can avoid preferably it to be subject to the interference of alternating force, simple in structure, intensity is higher, has good biocompatibility concurrently.
The purpose of this utility model is achieved in that
Dental structure is planted in a kind of combination, it is characterized in that: it forms by planting tooth body, retained abutment, maintenance sleeve and extension spring; The described tooth body inside of planting 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; This plants tooth body is the clava being made up of cervical region, middle part and afterbody, and its cervical region and afterbody all adopt porous tantalum product, and its porosity is 60% ~ 70%.
Adopt the cervical region of planting tooth body and the afterbody of the porous tantalum product of above-mentioned porosity, can meet its mechanical property requirements in Dental Implant structure, be 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: the cervical region of planting tooth body and the afterbody that adopt porous tantalum product, can make bone grow 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 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 is fixed on after maintenance sleeve, can outside this maintenance sleeve, Corresponding matching be installed by corona, and realize the firm implantation of artificial tooth.
Further, above-mentioned cervical region and afterbody of planting tooth body, realizes and being fixedly connected with of above-mentioned middle part of planting tooth body through bonding or welding respectively.Its connected mode is solid and reliable.
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 guaranteed the reliability of the two connection.
The utlity model has following beneficial effect:
1, 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;
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, guaranteed 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 guaranteed fixed effect;
3, 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.
4, as cervical region and the afterbody of planting the non-stress position in tooth body structure, all adopt porous tantalum product, well meet and guaranteed its mechanical property, also greatly increased the biocompatibility that this plants dental structure entirety simultaneously, improve service life and implanted comfort level, having increased stability and anti-verticity after this artificial prosthesis is implanted.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram that described in this utility model embodiment 1, dental structure is planted in combination.
Fig. 2 is the schematic diagram that described in Fig. 1, the Integral connection structure of dental structure is planted in combination.
The specific embodiment
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: dental structure is planted in a kind of combination, and it forms by planting tooth body 1, retained abutment 2, maintenance sleeve 9 and extension spring 4; It 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, its middle part 7 adopts medical titanium alloy product, cervical region 6 and afterbody 8 all adopt porous tantalum product, its porosity is 60% ~ 70%, and cervical region 6 and afterbody 8 are specifically realized and to be fixedly connected with this middle part 7 of planting tooth body 1 through laser weld respectively; 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, guaranteed 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 guaranteed fixed effect when use.And by groove 11 being set at the top of planting tooth body 1, and at the interior Corresponding matching of this groove 11, maintenance sleeve 9 is installed, afterwards by the threaded rod of retained abutment 2 bottoms 5 through after this maintenance sleeve 9 again with plant tooth body 1 and be connected, thereby strengthen retained abutment 2 support force being subject in the horizontal direction, suffered the effect of horizontal lateral force and the probability that ruptures and greatly reduce it.
Claims (9)
1. a dental structure is planted in combination, it is characterized in that: it forms by planting tooth body (1), retained abutment (2), maintenance sleeve (9) and extension spring (4); Described tooth body (1) inside of planting 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); The described tooth body (1) of planting is for the clava that is made up of cervical region (6), middle part (7) and afterbody (8), and its cervical region (6) and afterbody (8) all adopt porous tantalum product, and its porosity is 60% ~ 70%.
2. dental structure is planted in combination according to claim 1, it 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).
3. plant dental structure according to combination described in claim 1 or 2, 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.
4. plant dental structure according to combination described in claim 1 or 2, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realization with described in plant being fixedly connected with of middle part (7) of tooth body (1).
5. dental structure is planted in combination according to claim 3, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realization with described in plant being fixedly connected with of middle part (7) of tooth body (1).
6. plant dental structure according to combination described in claim 1 or 2, 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).
7. dental structure is planted in combination according to claim 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).
8. dental structure is planted in combination 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).
9. dental structure is planted in combination according to claim 5, 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 |
|---|---|---|---|
| CN201320884020.0U CN203693784U (en) | 2013-12-30 | 2013-12-30 | Combined tooth implantation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884020.0U CN203693784U (en) | 2013-12-30 | 2013-12-30 | Combined tooth implantation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203693784U true CN203693784U (en) | 2014-07-09 |
Family
ID=51044298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884020.0U Expired - Fee Related CN203693784U (en) | 2013-12-30 | 2013-12-30 | Combined tooth implantation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203693784U (en) |
-
2013
- 2013-12-30 CN CN201320884020.0U patent/CN203693784U/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 |
Granted publication date: 20140709 Termination date: 20201230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |