CN203693801U - One-piece dental implantation structure - Google Patents

Abstract

The utility model relates to an one-piece dental implantation structure which comprises an implantation body (1), a retention platform (2), and an extension spring (4), wherein the retention platform (2) is fixed at the upper end part of the implantation body (1); the implantation body (1) is made of porous tantalum of which the porosity rate ranges from 60% to 70%; a groove (3) is formed in the lower end of the implantation body (1); a ridge-shaped annular bulge (5) is arranged on the side wall inside the groove (3); the extension spring (4) is arranged in the groove (3), and fixed through the ridge-shaped annular bulge (5) on the side wall of the groove (3); a through hole (6), which extends downwards perpendicular to the upper end surface of the retention platform (2) and is communicated with the groove (3), is also formed in the one-piece dental implantation structure. The one-piece dental implantation structure is simple in structure, thus, interference from alternating force can be avoided preferably; the one-piece dental implantation structure can be tightly jointed with alveolar bone in a real-time manner, so that the repairing function to some degree is realized and excellent biocompatibility is achieved.

Description

Single-piece is planted dental structure

Technical field

This utility model relates to Medical oral cavity manual tooth planting's medical apparatus and instruments, relates in particular to single-piece 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 directly imbeds dental bed in advance by an implant, after above implant, install a maintenance platform separation and that expose to dental bed surface, finally on this maintenance platform, a corona is installed again again, to realize the implantation of artificial tooth.

In clinical practice, implant in use can be subject to the effect of alternating force for a long time, particularly work as Dental Implant 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.And after device corona, through life-time service or improper use, maintenance platform also can rupture sometimes, corona is come off and can not re-use.Now, residual implant after fracture need be extracted, to re-assembly, so also equal to plant tooth failure.

Meanwhile, existing composition of planting dental structure includes implant, maintenance platform and corona, and the syndeton of its implant and maintenance interstation is comparatively complicated various, plants tooth process operation comparatively loaded down with trivial details.It is planted in dental structure design and also has certain defect, causes its mechanical property and biocompatibility poor, there will be repulsion, and affect the problems such as its service life after long-time use with tissue.In addition, Dental Implant can not wait sclerotin weakness implant is most advanced and sophisticated after implantation, then add as bone grafting material, biotic factor etc. other to increase the material of planting tooth steadiness, often sclerotin is plentiful not, easily causes and plants tooth failure.

Utility model content

The purpose of this utility model is to provide a single-piece to plant dental structure, this single-piece is planted dental structure and can be closely connected with alveolar bone in real time, can avoid preferably the interference of alternating force, simple in structure, 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

Single-piece is planted dental structure, it is characterized in that: it is made up of implant, maintenance platform and extension spring; Described maintenance platform is fixed on the upper end of described implant; Described implant adopts porous tantalum product, and its porosity is 60% ~ 70%; The inside, lower end of this implant 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; This single-piece is planted the inside of dental structure, is also provided with from the upper surface of described maintenance platform vertically downward and the through hole communicating with described groove.

Through adopting the implant of porous tantalum product of above-mentioned porosity, can meet this single-piece and plant the mechanical property requirements of dental structure 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 stability and anti-verticity after artificial prosthesis is implanted.This porous tantalum product can adopt the preparations such as foam dipping method, die pressing.

Further, above-mentioned implant is cylinder, and the diameter of the middle upper end of this implant is consistent; The middle upper end of the diameter of its lower end is short.The implant 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.

Further, above-mentioned maintenance platform is Rotary-table or cylinder, and realizes and being fixedly connected with of above-mentioned implant through bonding or welding.The maintenance platform of this Rotary-table shape or cylindrical shape, can install corona in order to Corresponding matching, and then has realized the implantation of artificial tooth.Its connected mode is simple, and has realized the two is connected to an entirety.

The utlity model has following beneficial effect:

1, this utility model is simple in structure, and it adopts implant and maintenance platform bonding or be 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 implant lower end internal recess, and realize this and planted the alveolar bone close contact all the time of dental 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 guaranteed fixed effect;

3, this plants the inner through hole that arrange, that communicate with described groove of dental structure, also can, in the time that fracture occurs maintenance platform, utilize the space in its through hole to imbed a stud, the maintenance platform of its fracture is repaired, again maintenance platform and implant are connected as one;

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

5, its overall structure itself adopts porous tantalum product, 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.

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram that in this utility model embodiment 1, single-piece is planted dental structure.

Fig. 2 is the structural representation that in Fig. 1, single-piece is planted dental structure integrated connection.

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: single-piece is planted dental structure, it is made up of implant 1, maintenance platform 2 and extension spring 4; Its maintenance platform 2 adopts medical titanium alloy to make, and is fixedly installed on the upper end of implant 1; This implant 1 adopts porous tantalum product, and its porosity is 60% ~ 70%, and this porous tantalum product specifically can adopt method preparation described in patent 201110296515.7; The inside, lower end of this implant 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 single-piece is planted the inside center of dental structure, is also provided with from the upper surface of maintenance platform 2 vertically downward and the through hole 6 communicating with groove 3; Its implant 1 is cylinder, and the diameter of the middle upper end of this implant 1 is consistent; The middle upper end of the diameter of its lower end is short; Its maintenance platform 2 is Rotary-table, and realizes and being fixedly connected with of implant 1 through high-power electron beam welding; The maintenance platform 2 of this Rotary-table shape, installs corona with Corresponding matching, and then 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 3 correspondences of the groove on implant 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, 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, extension spring makes it again keep close contact by elastic force, and then guarantee fixed effect.And further by the through hole 6 arranging in its structure, realize the sclerotin weakness such as implant bottom have been introduced, have 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.

Claims (3)

1. single-piece is planted dental structure, it is characterized in that: it is made up of implant (1), maintenance platform (2) and extension spring (4); Described maintenance platform (2) is fixed on the upper end of described implant (1); Described implant (1) adopts porous tantalum product, and its porosity is 60% ~ 70%; The inside, lower end of this implant (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; This single-piece is planted the inside of dental structure, is also provided with from the upper surface of described maintenance platform (2) vertically downward and the through hole (6) communicating with described groove (3).

2. single-piece is planted dental structure according to claim 1, it is characterized in that: described implant (1) is cylinder, and the diameter of the middle upper end of this implant (1) is consistent; The middle upper end of the diameter of its lower end is short.

3. plant dental structure according to single-piece described in claim 1 or 2, it is characterized in that: described maintenance platform (2) is Rotary-table or cylinder, and realize and being fixedly connected with of described implant (1) through bonding or welding.