CN203736334U

CN203736334U - Dental implant structure

Info

Publication number: CN203736334U
Application number: CN201420116046.5U
Authority: CN
Inventors: 叶雷
Original assignee: Chongqing Runze Pharmaceutical Co Ltd
Current assignee: Chongqing Runze Pharmaceutical Co Ltd
Priority date: 2014-03-14
Filing date: 2014-03-14
Publication date: 2014-07-30
Anticipated expiration: 2024-03-14

Abstract

The utility model relates to a dental implant structure. The dental implant structure comprises a dental implant body (1), a retention abutment (2), an extension spring (4) and a buffer cushion (8), wherein the retention abutment (2) is fixed at the upper end of the dental implant body (1); the dental implant body (1) comprises a main body part (7) and a lower end part (6); the main body part (7) is molded in a whole by a porous tantalum workpiece; the porosity of the workpiece is 60-70%; the lower end part (7) takes the shape of a bullet; a groove (3) is formed inside the lower end part (6); ridge-shaped annular bulges (5) are arranged on the side walls in the groove (3); the extension spring (4) is arranged in the groove (3) and fixed by the ridge-shaped annular bulges (5); the buffer cushion (8) is arranged on the retention abutment (2). The dental implant structure disclosed by the utility model can connect the dental implant body with an alveolar bone tightly in real time, is good in force applying performance, can greatly avoid that the structure is subjected to interference of alternating force, and is more reasonable and simpler in structure, and good in biocompatibility.

Description

A kind of Dental Implant structure

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 Dental Implant structure.

Background technology

Oral cavity implanting tooth is to repair at present a mouthful best method for inner teeth gear disappearance.The composition of existing Dental Implant structure includes multiple members such as planting tooth body, retained abutment and corona.In clinical practice, Dental Implant in use can be subject to the effect of alternating force for a long time, that particularly works as Dental Implant plants tooth body when mounted, if move past to words lateral deviation many, easily occur in a short time loosening, and because its structural design is unreasonable, 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.Meanwhile, it is comparatively complicated various that it plants syndeton between tooth body and retained abutment, plants tooth process operation comparatively loaded down with trivial details; And this two also can there is connection defective tightness, and be easy to cause impurity to enter in its joint gap, affect being fixedly connected with of the two, simultaneously existing planting in dental structure usually adopts the mode of directly installing that artificial tooth is installed in its retained abutment, its denture upper jaw power is difficult to adjusted distribution, and periodontal trauma easily occurs, and its canine implant load is larger, plant tooth success rate lower, service life is shorter.In addition, it is poor that in existing design also usually there is mechanical property and biocompatibility in canine implant, and between tissue, also exist in conjunction with defective tightness reliably, easily produces loosening, 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 a kind of Dental Implant structure, this Dental Implant structure can closely be connected with alveolar bone planting tooth body in real time, and good stress performance can avoid it to be subject to the interference of alternating force preferably, more reasonable structure is simple, has the characteristics such as good biocompatibility concurrently.

The purpose of this utility model is achieved in that

A kind of Dental Implant structure, is characterized in that: it forms by planting tooth body, retained abutment, extension spring and cushion pad; Described in being fixed on, described retained abutment plants the upper end of tooth body; The described tooth body of planting is made up of body and bottom, and its body adopts porous tantalum product one-body molded, and its porosity is 60% ~ 70%; Its bottom is set to bullet-headed, and its inside is provided with groove; On sidewall in this groove, be provided with ridged annular projection; Described extension spring is arranged in this groove, and fixes by the ridged annular projection on its sidewall; In described retained abutment, be provided with cushion pad.

Adopt above-mentioned porosity porous tantalum product plant tooth body, 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: what adopt porous tantalum product plants tooth body, 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 connection compactness, stability and anti-verticity after artificial prosthesis is implanted.

Further, above-mentioned body of planting tooth body is cylinder, realizes and being fixedly connected with of above-mentioned bottom of planting tooth body through bonding or welding.Be preferably cylinder, and this cylindrical diameter is identical with the maximum gauge of bottom of planting tooth body.Its structural entity of tooth body of planting of this structure setting is similar to bullet shaped, the bottom smooth surface that it is bullet-headed, is beneficial to implantation process, and and can realize this structural entity and firmly hammer in body bone tissue, firmly be connected thereby realized with alveolar bone, and increased the effects such as stable connection.

Further, above-mentioned retained abutment is Rotary-table or cylinder, and realizes with above-mentioned and plant being directly fixedly connected with of tooth body through bonding or welding.Its connected mode is solid and reliable, and by retained abutment being directly fixed on to the upper end of planting tooth body, thereby simplify the connection of the two, its overall good stress performance, is also convenient to produce.The retained abutment of its Rotary-table shape or cylindrical shape, can install cushion pad in order to Corresponding matching, and then again corona is installed on cushion pad, and has realized the implantation of artificial tooth.

As optimizing further, in above-mentioned retained abutment, inside also arranges porosely, and 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, this utility model is simple in structure, and it bonds by employing or weld and will plant tooth body and retained abutment connects as one, and its two connected mode is simple, firm and reliable connection, and overall good stress performance, is convenient to produce;

2, adopt extension spring one end is fixed on the alveolar bone of bottom, the other end is fixed on the groove of planting inside, tooth body lower end, and realize the alveolar bone close contact all the time of this structure and bottom, also realized and continue its overall structure to apply active force simultaneously, in use, if become flexible because of external force, extension spring makes it again keep close contact by elastic force, and then has ensured fixed effect;

3, its body construction of planting tooth body adopts porous tantalum product, well meet its mechanical property, also greatly increase its biocompatibility simultaneously, improved service life and implanted comfort level, increased connection compactness, stability and anti-verticity after this artificial prosthesis is implanted;

4, its bottom of planting tooth body is set to bullet-headed, the effect of this structure setting is similar to the nail tip portion of screw, firmly hammer in body bone tissue and can make this plant tooth body, be firmly connected thereby realized with alveolar bone, further increased the effects such as stable connection;

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 the success rate of artificial growth, 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 decomposition texture schematic diagram of Dental Implant structure described in this utility model embodiment 1.

Fig. 2 is the structural representation that Dental Implant structural entity described in Fig. 1 connects.

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 Dental Implant structure, it forms by planting tooth body 1, retained abutment 2, extension spring 4 and cushion pad 8; Its retained abutment 2 is directly fixed on the upper end of implant 1 by laser weld; Plant tooth body 1 and be made up of body 7 and bottom 6, its body 7 adopts porous tantalum product one-body molded, and its porosity is 60% ~ 70%; Its bottom 6 is set to bullet-headed, and its inside is provided with groove 3; On sidewall in this groove 3, be provided with ridged annular projection 5; Extension spring 4 is arranged in this groove 3, and fixing by the ridged annular projection 5 on its sidewall; Its body 7 of planting tooth body 1 is cylinder, realizes and being fixedly connected with of bottom 6 of planting tooth body 1 through bonding; And this cylindrical diameter is identical with the maximum gauge of bottom 6 of planting tooth body 1; Its retained abutment 2 is Rotary-table, adopt medical titanium alloy to make, and in retained abutment 2, Matching installation is provided with cushion pad 8; In this retained abutment 2 inside also arrange porose 9, on cushion pad 8 also correspondence arrange porose 9, by these correspondence two interior inserted links that arrange in hole 9, and by the two fixing interlocking together; After on this cushion pad 8, corona 10 is installed again, realized the implantation of artificial tooth.

In clinical practice, after first extension spring 4 one end being fixed on the alveolar bone of bottom, again groove 3 correspondences of planting on tooth body 1 are contained on the other end of extension spring 4, can be by the ridged annular projection 5 on groove 3 sidewalls by fixing this extension spring 4 after firmly depressing, and then by the pulling force of extension spring 4, realize the alveolar bone close contact all the time of itself and bottom, also realized and continue its overall structure to apply active force simultaneously, in use, if become flexible because of external force, make it again keep close contact by elastic force, and then ensure fixed effect.

Claims

1. a Dental Implant structure, is characterized in that: it forms by planting tooth body (1), retained abutment (2), extension spring (4) and cushion pad (8); Described in being fixed on, described retained abutment (2) plants the upper end of tooth body (1); The described tooth body (1) of planting is made up of body (7) and bottom (6), and its body (7) adopts porous tantalum product one-body molded, and its porosity is 60% ~ 70%; Its bottom (6) is set to bullet-headed, and its inside is provided with groove (3); On sidewall in this groove (3), be provided with ridged annular projection (5); Described extension spring (4) is arranged in this groove (3), and fixing by the ridged annular projection (5) on its sidewall; In described retained abutment (2), be provided with cushion pad (8).

2. Dental Implant structure according to claim 1, is characterized in that: described in plant tooth body (1) body (7) be cylinder, through bonding or welding realize with described in plant being fixedly connected with of bottom (6) of tooth body (1).

3. Dental Implant structure according to claim 1, is characterized in that: described in plant tooth body (1) body (7) be cylinder, through bonding or welding realize with described in plant being fixedly connected with of bottom (6) of tooth body (1); And this cylindrical diameter is identical with the maximum gauge of bottom (6) of planting tooth body (1).

4. according to the arbitrary described Dental Implant structure of claim 1-3, it is characterized in that: described retained abutment (2) is for Rotary-table or cylinder, and through bonding or welding realize with described in plant being directly fixedly connected with of tooth body (1).

5. according to the arbitrary described Dental Implant structure of claim 1-3, it is characterized in that: the upper inside of described retained abutment (2) also arranges porose (9), and on described cushion pad (8), also correspondence arranges porose (9).

6. Dental Implant structure according to claim 4, is characterized in that: the upper inside of described retained abutment (2) also arranges porose (9), and on described cushion pad (8), also correspondence arranges porose (9).