CN203749613U

CN203749613U - Dental implantation suite

Info

Publication number: CN203749613U
Application number: CN201420133637.3U
Authority: CN
Inventors: 叶雷
Original assignee: Chongqing Runze Pharmaceutical Co Ltd
Current assignee: Chongqing Runze Pharmaceutical Co Ltd
Priority date: 2014-03-24
Filing date: 2014-03-24
Publication date: 2014-08-06
Anticipated expiration: 2024-03-24

Abstract

The utility model relates to a dental implantation suite. The suite comprises a dental implant (1), a retaining base (2), a tension spring (4) and a cushion (7), wherein the retaining base (2) is fixed at the upper end of the dental implant (1); the dental implant (1) is a porous tantalum part having a porosity of 60-70 percent; a groove (3) is formed inside the lower end of the dental implant (1); a ridge-shaped annular bulge (5) is arranged on the lateral wall in the groove (3); the tension spring (4) is fixed in the groove (3) by the ridge-shaped annular bulge (5); a division trench (9) communicated with the groove (3) is horizontally formed in the end face of the tail part of the dental implant (1); a through hole (6) is formed inside the dental implant suite, goes down vertically from the upper end face of the retaining base (2) and is communicated with the groove (3); and the cushion (7) is arranged on the retaining base (2). The dental implantation suite can well avoid interference of alternating force, has a certain repairing function, and has excellent biocompatibility.

Description

Plant facing part for one kind

Technical field

This utility model relates to Medical oral cavity manual tooth planting, relates in particular to one kind and plants facing part.

Background technology

Oral cavity canine implant is to repair at present a mouthful best method for inner teeth gear disappearance.Existing composition of planting facing part includes multiple members such as planting tooth body, retained abutment and corona.Because its structural design is unreasonable, it usually exists: it is various 1, to plant syndeton complexity between tooth body and retained abutment, implant procedure is loaded down with trivial details, and also exist and connect defective tightness, easily cause impurity to enter in its joint gap impact fixing, and with body bone tissue between while being connected steadiness poor; 2, Dental Implant is subject to the effect of alternating force in installing and using, and can easily occur looseningly, and this loosening can not again tightening can only again be planted, thereby increased the operations such as plantation again, caused significant wastage; 3, after device corona, through life-time service or improper use, retained abutment also can rupture, and corona is come off and can not re-use, and now, the residual tooth body of planting after fracture need be extracted to re-assembly, and so also equals to plant tooth failure; 4, by artificial tooth is directly installed in retained abutment, its denture upper jaw power is difficult to adjusted distribution, and periodontal trauma easily occurs, and its canine implant is loaded larger, plants tooth success rate lower, and service life is shorter; 5, Dental Implant can not planted the sclerotin weakness such as tooth body tip after implantation, then adds that other plant the material of tooth steadiness to increase as bone grafting material, biotic factor etc., and often sclerotin is plentiful not, easily causes and plants tooth failure; 6, also usually exist mechanical property and biocompatibility poor, and between tissue, also exist in conjunction with defective tightness reliably, easily produce looseningly, after long-time use, there will be repulsion with tissue, and affect the problems such as its service life.Therefore need badly its improvement.

Utility model content

The purpose of this utility model is to provide one kind to plant facing part, this is planted facing part and can closely be connected with alveolar bone in real time, can avoid preferably the interference of alternating force, the tip that also other materials of planting tooth steadiness to increase such as bone grafting material, biotic factor can be introduced to Dental Implant, and there is certain repair function, and have good biocompatibility concurrently.

The purpose of this utility model is achieved in that

Plant a facing part, it 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 adopts porous tantalum product, and its porosity is 60% ~ 70%; This inside, lower end of planting tooth body 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; Described tail end face of planting tooth body also horizontal distribution has the guiding gutter being communicated with described groove; This plants the inside of facing part, is also provided with from the upper surface of described retained abutment vertically downward and the through hole communicating with described groove; In described retained abutment, cushion pad is set.

Through adopt above-mentioned porosity porous tantalum product plant tooth body, can meet this and plant the mechanical property requirements of facing part in application, and through adopting porous tantalum structure, can also make bone grow into and the structure of growing in forming, thereby as a whole with body bone tissue combination, in greatly having improved biocompatibility, also well meet its mechanical property, improve service life and implanted comfort level, having increased connection compactness, stability and the anti-verticity of far-end after artificial prosthesis is implanted.This porous tantalum product can adopt the preparations such as foam dipping method, die pressing.

Further, the above-mentioned tooth body of planting is cylinder, and this diameter of middle upper end of planting tooth body is consistent; The middle upper end of the diameter of its lower end is short.The tooth body of planting of this structure setting is conducive to implantation process, and has the effects such as the sinking of further preventing.

Further, above-mentioned retained abutment is Rotary-table or cylinder, and realizes with above-mentioned and plant being fixedly connected with of tooth body through bonding or welding.The retained abutment of this 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.

The utlity model has following beneficial effect:

1, this utility model is simple in structure, and it will plant tooth body and retained abutment adopts bonding or is welded into a single-piece, has simplified the connection of the two, be convenient to produce, and overall good stress performance;

2, it is fixed on extension spring one end on the alveolar bone of bottom, the other end is fixed on the ridged annular projection of planting tooth body lower end internal recess, and realize this and planted the alveolar bone close contact all the time of facing part 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, this plants the inner through hole that arrange, that communicate with groove of facing part, also can, in the time that fracture occurs retained abutment, utilize the space in its through hole to imbed a stud, by the retained abutment reparation of its fracture, with again by retained abutment and plant tooth body and connect as one;

4, by being provided with the through hole communicating with the groove of inside, lower end of planting tooth body in planting facing part at this, realize sclerotin weakness such as planting tooth body bottom has been introduced, has been evenly distributed on to other materials of planting tooth steadiness to increase such as bone grafting material, biotic factor, and increased the stability that this structure is connected with sclerotin, make implantation body and bony fusion faster, better;

5, it plants tooth body structure employing porous tantalum product itself, has well met its mechanical property, has also greatly increased its biocompatibility simultaneously, has improved service life and has implanted comfort level, has increased stability and anti-verticity after this artificial prosthesis is implanted;

6, 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 implant tooth, has improved the success rate of artificial growth, and has increased its service life.

Brief description of the drawings

Fig. 1 is the decomposition texture schematic diagram of planting facing part in embodiment 1.

Fig. 2 plants the structural representation that facing part overall structure connects 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 facing part for one kind, it forms 7 by planting tooth body 1, retained abutment 2, extension spring 4 and cushion pad; Its retained abutment 2 adopts medical titanium alloy to make, and is fixedly installed on the upper end of planting tooth body 1; This plants tooth body 1 for cylinder, wherein the diameter of upper end is consistent, the diameter of its lower end in upper end short, and this is planted tooth body 1 and adopts porous tantalum product, its porosity is 60% ~ 70%, and this porous tantalum product specifically can adopt method preparation described in patent 201110296515.7; This inside, lower end of planting tooth body 1 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; This tail end face of planting tooth body 1 also horizontal distribution has the guiding gutter 9 being communicated with groove 3; This plants the inside of facing part, is also provided with from the upper surface of retained abutment 2 vertically downward and the through hole 6 communicating with groove 3; Its retained abutment 2 is Rotary-table, and specifically realizes and plant being fixedly connected with of tooth body 1 through high-power electron beam welding, and in the retained abutment 2 of this Rotary-table shape, Matching installation has cushion pad 7, then on cushion pad 7, corona 8 is installed, and has 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 sleeved 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, fastening by rotation again, realized by the pulling force of extension spring 4, the alveolar bone all the time close contact of tooth body 1 with bottom will be planted, 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 ensure fixed effect.By add cushion pad 7 between corona 8 and retained abutment 2, scalable denture upper jaw power is distributed, and has avoided periodontal trauma, has alleviated the load of implant tooth, has improved the success rate of artificial growth, and has increased its service life.

Claims

1. plant a facing part, it is characterized in that: it forms by planting tooth body (1), retained abutment (2), extension spring (4) and cushion pad (7); Described in being fixed on, described retained abutment (2) plants the upper end of tooth body (1); The described tooth body (1) of planting adopts porous tantalum product, and its porosity is 60% ~ 70%; This inside, lower end of planting tooth body (1) 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; Described tail end face of planting tooth body (1) also horizontal distribution has the guiding gutter (9) being communicated with described groove (3); This plants the inside of facing part, is also provided with from the upper surface of described retained abutment (2) vertically downward and the through hole (6) communicating with described groove (3); Cushion pad (7) is set in described retained abutment (2).

2. plant according to claim 1 facing part, it is characterized in that: described in to plant tooth body (1) be cylinder, and this diameter of middle upper end of planting tooth body (1) is consistent; The middle upper end of the diameter of its lower end is short.

3. according to planting facing part described in claim 1 or 2, 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 fixedly connected with of tooth body (1).