CN203710169U - Dental implant component - Google Patents

Abstract

The utility model relates to a dental implant component which is composed of an implant body (1), a retaining basal table (2), an extension spring (4) and a buffer cushion (10); the implant body (1) is a porous tantalum-made part; the porosity of the implant body (1) is 60-70%; a through hole (3) penetrating from the top to the bottom is arranged in the implant body (1); a pipe thread with a thread angle of 55 DEG is arranged on the inside surface of the implant body (1) at the upper middle part of the through hole (3); the extension spring (4) is arranged at the lower part of the through hole (3); a threaded rod (5) is arranged at the lower part of the retaining basal table (2); the threaded rod (5) is connected with one end of the extension spring (4) and is correspondingly matched with the pipe thread with the thread angle of 55 DEG on the inside surface of the implant body (1); and the buffer cushion (10) is arranged on the retaining basal table (2). The dental implant component disclosed by the utility model has good connection sealing property and overall stress, is capable of avoiding interference of alternating force very well, and also has good biocompatibility.

Description

A kind of tooth plantation member

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 tooth plantation member.

Background technology

Canine implant is the best method of repairing at present oral cavity inner teeth gear disappearance.Dental implant surgical of the prior art, normally by one, plant tooth body and directly imbed in advance dental bed, after above planting tooth body, install a retained abutment separation and that expose to dental bed surface, a corona is finally directly installed in this retained abutment again again, to realize the implantation of artificial tooth.

But 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, plant tooth success rate lower, service life is shorter.And in clinical practice, Dental Implant can be subject to the effect of alternating force for a long time, particularly when it 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, caused significant wastage.

Simultaneously, Dental Implant of the prior art exists in application that be combined defective tightness with human body alveolar bone reliable, easily produce the problems such as loosening, and Dental Implant can not planted the sclerotin weakness such as tooth body tip after implantation, add again as bone grafting material, biotic factor etc. other to increase the material plant tooth steadiness, and the materials such as the broken end of the flesh and blood that may exist in its structure are also difficult for discharging, poor fluidity between material; Its mechanical property and biocompatibility are poor, there will be repulsion, and affect its service life after long-time use with tissue.In addition,, in tooth plantation member of the prior art, it plants tooth body and retained abutment syndeton defective tightness, and is easy to cause impurity to enter in screw thread, affects being fixedly connected with of the two.

Utility model content

The purpose of this utility model is to provide a kind of tooth plantation member, this tooth plantation member can closely be connected with alveolar bone planting tooth body in real time, the sealing of its connection and whole good stress performance, and can avoid preferably its interference that is subject to alternating force, and have good biocompatibility concurrently.

The purpose of this utility model is achieved in that

A tooth plantation member, 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; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body of planting of this through hole middle and upper part, 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 with described to plant tooth form angle that the inner surface of tooth body arranges be the gas thread corresponding matching of 55 °; In described retained abutment, be provided with cushion pad.

The porous tantalum product of above-mentioned porosity, can meet this and plant the mechanical property requirements of tooth body in tooth plantation member, to realize it, is 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: 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, when greatly having improved biocompatibility, also well met its mechanical property, improved service life and implanted comfort level, having increased stability and anti-verticity after artificial prosthesis is implanted.In addition,, by being the gas thread Corresponding matching of 55 ° by threaded rod and the tooth form angle of planting the inner surface setting of tooth body, its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread.

Further, the above-mentioned column of tooth body for being formed by cervical region, middle part and afterbody of planting.Further, above-mentioned outer surface of planting the middle part of tooth body is gas thread; The diameter of its afterbody is narrow compared with cervical region and 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 or cylinder can be installed cushion pad in order to Corresponding matching, and then again corona are installed on cushion pad, and have realized the implantation of artificial tooth.

Further, above-mentioned tail end face of planting tooth body also horizontal distribution have the guiding gutter being communicated with described through hole.By setting up guiding gutter, can realize sclerotin weakness such as planting tooth body afterbody is introduced, is evenly distributed on to other materials plant tooth steadiness to increase such as bone grafting material, biotic factor, and the stability that increase is connected with sclerotin, and can greatly improve the mobility of the materials such as the broken end of flesh and blood, make it and be set to porous tantalum product to plant tooth body 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, planting tooth body and retained abutment, to adopt tooth form angle be the gas thread Corresponding matching of 55 °, and its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread.

2, the bottom that employing is fixed on alveolar bone by extension spring one end is to continue that retained abutment is applied to elastic force, be fixed in the through hole of planting tooth body inside, guaranteed retained abutment all the time with plant tooth body close contact, by retained abutment, to planting tooth body, itself apply the effect of power, the bottom that makes to plant tooth body and alveolar bone is close contact all the time simultaneously; 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 guaranteed fixed effect;

3, plant tooth body itself and adopt porous tantalum product, well met its mechanical property, the biocompatibility that has simultaneously also greatly increased this tooth plantation member, has improved service life and has implanted comfort level, has increased stability and anti-verticity after this artificial prosthesis is implanted;

The guiding gutter of the horizontal distribution 4, being communicated with through hole by increase at the tail end face of planting tooth body, realized sclerotin weakness such as planting tooth body afterbody 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 the stability that increase is connected with sclerotin, and can greatly improve the mobility of the materials such as the broken end of flesh and blood, make it and be set to 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 at it, on the two, offer respectively porosely, make both interlockings together, prevent from coming off.

Accompanying drawing explanation

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of the plantation of tooth described in this utility model embodiment 1 member.

Fig. 2 is the structural representation of the integrated connection of the plantation of tooth described in Fig. 1 member.

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: a kind of tooth plantation member, it forms by planting tooth body 1, retained abutment 2, extension spring 4 and cushion pad 10; 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; Also to be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts, and tooth body 1 inside of planting of these through hole 3 bottoms is also 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 are the gas thread corresponding matching of 55 ° with planting tooth form angle that the inner surface of tooth body 1 arranges; It plants tooth body 1 column for being comprised of cervical region 6, middle part 7 and afterbody 8, and in the middle part of it, 7 outer surface is gas thread, and the diameter of its afterbody 8 is narrow compared with cervical region 6 and middle part 7, and afterbody 8 end faces of planting tooth body 1 also horizontal distribution have a guiding gutter 9 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 10; In the top of retained abutment 2, also arrange porose 11, on cushion pad 10 also correspondence arrange porose 11, by these correspondence two interior inserted links that arrange in hole 11, and by the two fixing interlocking together; The Rotary-table Corresponding matching on the top of retained abutment 2 is installed cushion pad 10, after corona 12 is installed on cushion pad 10 again, and then 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, guaranteed retained abutment 2 all the time with plant tooth body 1 close contact, by 2 pairs of retained abutment, plant the effect that tooth body 1 itself applies power, the bottom that makes to plant tooth body 1 and alveolar bone is close contact all the time simultaneously; 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 guaranteed fixed effect during use.

Claims (8)

1. a tooth plantation member, is characterized in that: it forms by planting tooth body (1), retained abutment (2), extension spring (4) and cushion pad (10); 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; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body (1) of planting of this through hole (3) middle and upper part, 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 with described to plant tooth form angle that the inner surface of tooth body (1) arranges be the gas thread corresponding matching of 55 °; In described retained abutment (2), be provided with cushion pad (10).

2. tooth plantation member according to claim 1, is characterized in that: described in plant the column of tooth body (1) for being formed by cervical region (6), middle part (7) and afterbody (8).

3. tooth plantation member according to claim 2, is characterized in that: described in plant the middle part (7) of tooth body (1) outer surface be gas thread; The diameter of its afterbody (8) is narrow compared with cervical region (6) and middle part (7).

4. according to the arbitrary described tooth plantation member of claim 1-3, it is characterized in that: the top of described retained abutment (2) is Rotary-table, and one-body molded with the threaded rod (5) of described retained abutment (2) bottom.

5. according to the arbitrary described tooth plantation of claim 1-3 member, it is characterized in that: described in plant tooth body (1) afterbody (8) end face also horizontal distribution have the guiding gutter (9) being communicated with described through hole (3).

6. tooth plantation member according to claim 4, is characterized in that: described in plant tooth body (1) afterbody (8) end face also horizontal distribution have the guiding gutter (9) being communicated with described through hole (3).

7. tooth is planted member according to claim 4, it is characterized in that: porose (11) are also set in the top of described retained abutment (2), and on described cushion pad (10), also correspondence arranges porose (11).

8. tooth is planted member according to claim 6, it is characterized in that: porose (11) are also set in the top of described retained abutment (2), and on described cushion pad (10), also correspondence arranges porose (11).