CN203710167U - Tooth implantation structure - Google Patents

Abstract

The utility model relates to a tooth implantation structure. The tooth implantation structure comprises a tooth implant (1), a retention base stand (2), an extension spring (4) and a cushion (9), wherein the tooth implant (1) adopts a porous tantalum part with porosity of 60-70%; an up-down through hole (3) is formed inside the tooth implant (1); a general thread is arranged on the internal surface of the tooth implant (1) in the middle upper part of the through hole (3); the extension spring (4) is arranged inside the tooth implant (1) at the lower part of the through hole (3); a threaded rod (5) is arranged at the lower part of the retention base stand (2), is connected with one end of the extension spring (4) and is matched with the general thread on the internal surface of the tooth implant (1); the cushion (9) is arranged on the retention base stand (2). The tooth implantation structure can connect the tooth implant with an alveolar bone tightly in real time, can better avoid interference of alternating force, and has better overall force-bearing property and good biocompatibility.

Description

Plant dental structure for one kind

Technical field

This utility model relates to Medical oral cavity manual tooth planting's medical apparatus and instruments, relates in particular to one kind and plants dental structure.

Background technology

The dental implant surgical of known current routine is to plant tooth body by one to imbed in advance dental bed, after above this plants tooth body, install again the maintenance platform of a separation, finally by assemble again a corona on this maintenance platform, and realize the implantation of artificial tooth.But in clinical practice, it can be subject to the effect of alternating force for a long time, particularly when Dental Implant when mounted, if move past manyly to words lateral deviation, easily occur in a short time loosening, now it with body bone tissue between can not realize that close contact is connected, steadiness is poor, and because its structural design is unreasonable, cause this becoming flexible can not again to be tightened In the view of at present, can only again plant, thereby increased the operations such as plantation again, cause significant wastage.

In addition, existing planting in dental structure on its maintenance platform usually adopts the mode of directly installing that artificial tooth is installed, and its denture upper jaw power is difficult to adjusted distribution, and periodontal trauma easily occurs, and its canine implant load is larger, plants tooth success rate lower, and service life is shorter.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.

Utility model content

The purpose of this utility model is to provide one kind to plant dental structure, and this is planted dental structure 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, and overall stressed property is better, and has good biocompatibility concurrently.

The purpose of this utility model is achieved in that

Plant a dental structure, it is characterized in that: it forms by planting tooth body, retained abutment, extension spring and cushion pad; 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 retained abutment bottom is threaded rod, and this threaded rod is connected with one end of described extension spring, and coordinates with described regular screw threads of planting the inner surface setting of tooth body; In described retained abutment, be provided with cushion pad.

The porous tantalum product of above-mentioned porosity, can meet this and plant tooth body in the mechanical property requirements of planting in 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.

Further, the above-mentioned tooth body of planting is the cylinder being made up of cervical region, middle part and afterbody.It plants 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 or cylinder, and one-body molded with the threaded rod of above-mentioned retained abutment bottom.The Rotary-table on its top can be installed cushion pad in order to Corresponding matching, and then again corona is installed on cushion pad, has realized the implantation of artificial tooth.

Further, above-mentioned bottom end face of planting tooth body also horizontal distribution have the guiding gutter being communicated with above-mentioned through hole.By increasing guiding gutter in this bottom, can improve greatly the mobility at the broken end of flesh and blood, make itself and porous material better compatible.

Further, also arrange porosely in the top of above-mentioned retained abutment, on above-mentioned cushion pad, also correspondence arranges porose.By be respectively arranged with hole in the top of retained abutment He on cushion pad, can in application, adopt the modes such as inserted link by the two fixing interlocking together, prevent from coming off.

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, at the bottom end face of planting tooth body by increasing the guiding gutter of the horizontal distribution being communicated with through hole, greatly improved the mobility of the materials such as flesh and blood broken end, make it and be provided with porous tantalum product to plant tooth body better compatible;

5, by add cushion pad between artificial tooth and retained abutment, scalable denture upper jaw power is distributed, and has avoided periodontal trauma, has alleviated the load of canine implant, has improved canine implant success rate, and has increased its service life; And further on the two, offer respectively porosely at it, make both interlockings together, prevent from coming off.

Brief description of the drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of planting dental structure described in this utility model embodiment 1.

Fig. 2 is the structural representation of planting dental structure integrated connection described in Fig. 1.

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: plant dental structure for one kind, it forms by planting tooth body 1, retained abutment 2, extension spring 4 and cushion pad 9; 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; Its retained abutment 2 bottoms are threaded rod 5, and this threaded rod 5 is connected with one end of extension spring 4, and coordinate 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 bottom end face of planting tooth body 1 also horizontal distribution has the guiding gutter 11 being communicated with through hole 3; 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, and in retained abutment 2, is provided with cushion pad 9; In the top of retained abutment 2, also arrange porose 10, on cushion pad 9 also correspondence arrange porose 10, by these correspondence two interior inserted links that arrange in hole 10, and by the two fixing interlocking together; The Rotary-table Corresponding matching on the top of retained abutment 2 is installed cushion pad 9, after corona 12 is installed on cushion pad 9 again, realized the implantation of artificial tooth.

In clinical practice, extension spring 4 one end are fixed on to the bottom of alveolar bone, the other end is fixed on the 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 (8)

1. plant a dental structure, it is characterized in that: it forms by planting tooth body (1), retained abutment (2), extension spring (4) and cushion pad (9); 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 retained abutment (2) bottom is threaded rod (5), and this threaded rod (5) is connected with one end of described extension spring (4), and coordinates with described regular screw threads of planting tooth body (1) inner surface setting; In described retained abutment (2), be provided with cushion pad (9).

2. plant according to claim 1 dental structure, 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. plant according to claim 2 dental structure, 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. described in arbitrary according to claim 1-3, plant dental structure, it is characterized in that: the top of described retained abutment (2) is Rotary-table or cylinder, and one-body molded with the threaded rod (5) of described retained abutment (2) bottom.

5. described in arbitrary according to claim 1-3, plant dental structure, it is characterized in that: described in plant tooth body (1) bottom end face also horizontal distribution have the guiding gutter (11) being communicated with described through hole (3).

6. plant according to claim 4 dental structure, it is characterized in that: described in plant tooth body (1) bottom end face also horizontal distribution have the guiding gutter (11) being communicated with described through hole (3).

7. plant according to claim 4 dental structure, it is characterized in that: porose (10) are also set in the top of described retained abutment (2), and on described cushion pad (9), also correspondence arranges porose (10).

8. plant according to claim 6 dental structure, it is characterized in that: porose (10) are also set in the top of described retained abutment (2), and on described cushion pad (9), also correspondence arranges porose (10).