CN203749612U - Dental implant structure - Google Patents

Abstract

The utility model relates to a dental implant structure. The structure comprises a dental implant (1), a retaining base (2), a tension spring (4) and a cushion (8), wherein the retaining base (2) is arranged at the upper end of the dental implant (1); the dental implant (1) is integrally molded by using a porous tantalum part with porosity of 60-70 percent and comprises a body part (7) and a lower end part (6); a continuously spiral boss (10) is arranged on the outer surface of the body part (7); a groove (3) is formed inside the bulle-shaped lower end part (6); 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); and the cushion (8) is arranged on the retaining base (2). The dental implant structure can be used for closely connecting the dental implant and a alveolar bone, can well avoid interference of alternating force, is good in stress and has excellent biocompatibility and other properties.

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

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 a plurality of members such as planting tooth body, retained abutment and corona.Its syndeton of planting between tooth body and retained abutment is comparatively complicated various, 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; Wherein, plant the generally standing cylindricality of counting of tooth body, it with body bone tissue between while being connected steadiness poor.

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 to words lateral deviation, move past 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.

In addition, existing planting in dental structure in its retained abutment 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 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 reliable, easily produce and become flexible, 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, this is planted dental structure and can by planting tooth body, closely be connected with alveolar bone 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 good characteristics such as 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; 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 one-body molded, and its porosity is 60% ~ 70%; The described tooth body of planting is comprised of body and bottom, and its body outer surface is provided with continuous spiral helicine boss; 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 it and plant the mechanical property requirements in dental structure at this, to realize it, be closely connected reliably with alveolar bone.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, when greatly having improved biocompatibility, also well met its mechanical property, improved 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.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, thereby realized with alveolar bone, be firmly connected, 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 simplified the connection of the two, its whole 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, 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 at it, on the two, offer respectively porosely, make both interlockings together, prevent from coming off;

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 the alveolar bone of having realized this structure and bottom close contact all the time, 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, 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, and can make this plant tooth body, firmly hammer in body bone tissue, thereby realized with alveolar bone, be firmly connected, further increased the effects such as stable connection;

4, it plants tooth body employing porous tantalum product, well met 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;

5, this utility model is simple in structure, and it adopts bonding or welding and directly fixing by planting tooth body and retained abutment, and its connected mode is simple, firm and reliable connection, and whole good stress performance is convenient to produce;

6, by the body outer surface planting tooth body, continuous spiral helicine boss is set, has further increased with the firm of alveolar bone and be connected, increased connection compactness, stability and anti-verticity after this artificial prosthesis is implanted.

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram of planting dental structure described in embodiment 1.

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

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: plant dental structure for one kind, it forms by planting tooth body 1, retained abutment 2, extension spring 4 and cushion pad 8; Its retained abutment 2 adopts medical titanium alloy to make, and is fixedly installed on the upper end of planting tooth body 1 through laser weld; It is planted tooth body 1 and adopts porous tantalum product one-body molded, and its porosity is 60% ~ 70%; Planting tooth body 1 is comprised of body 7 and bottom 6; Its body 7 outer surfaces are provided with continuous spiral helicine boss 10; 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 is cylinder, 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, 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 11 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, this extension spring 4 is fixing after firmly depressing, and then by the pulling force of extension spring 4, the alveolar bone of having realized itself and bottom is close contact all the time, also realized and continue its overall structure to apply active force simultaneously, in use, if become flexible because of external force, by elastic force, make it again keep close contact, and then guaranteed fixed effect.By add cushion pad 8 between corona 11 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 (4)

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 (8); Described in being arranged at, described retained abutment (2) plants the upper end of tooth body (1); The described tooth body (1) of planting adopts porous tantalum product one-body molded, and its porosity is 60% ~ 70%; The described tooth body (1) of planting is comprised of body (7) and bottom (6), and its body (7) outer surface is provided with continuous spiral helicine boss (10); 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. plant according to claim 1 dental structure, it is characterized in that: described in plant tooth body (1) body (7) be cylinder; Described retained abutment (2) is Rotary-table or cylinder, and through bonding or welding realize with described in plant being directly fixedly connected with of tooth body (1).

3. plant according to claim 1 dental structure, it is characterized in that: described in plant tooth body (1) body (7) be cylinder, and this cylindrical diameter is identical with the maximum gauge of bottom (6) of planting tooth body (1); Described retained abutment (2) is Rotary-table or cylinder, and through bonding or welding realize with described in plant being directly fixedly connected with of tooth body (1).

4. described in arbitrary according to claim 1-3, plant dental structure, 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).