CN203647512U - Tooth implanting structure of artificial tooth implant - Google Patents

Abstract

The utility model relates to a tooth implanting structure of an artificial tooth implant. The tooth implanting structure consists of a tooth implant body (1), a retaining base (2) and a tensile spring (4), wherein a through hole (3) which is perforated longitudinally is formed inside the tooth implant body (1); a tube thread with the thread angle of 55 degrees is formed on the internal surface of the tooth implant body (1) on the upper-middle part of the through hole (3); the tensile spring (4) is arranged inside the tooth implant body (3) on the lower part of the through hole (3); a threaded rod (5) is arranged on the lower part of the retaining base (2), is connected with one end of the tensile spring (4), and is correspondingly matched with the tube thread with the thread angle of 55 degrees on the internal surface of the tooth implant body (1); the tooth implant body (1) is a bar-shaped body consisting of a neck part (6), a middle part (7) and a tail part (8); both the neck part (6) and the tail part (8) are porous tantalum parts of which the porosity is 60-70 percent. By adopting the tooth implanting structure, interference of alternating force is avoided. The tooth implanting structure has the advantages of simple structure, high strength and high biocompatibility.

Description

A kind of canine implant plant dental 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 structure of planting of canine implant.

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 plants tooth body by one and directly imbeds 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 installed in this retained abutment again again, to realize the implantation of artificial tooth.

But, plant tooth body and in use can be subject to for a long time the effect of alternating force, particularly work as Dental Implant when mounted, if move past manyly to words lateral deviation, easily occur in a short time looseningly, and to plant the design of tooth body structure unreasonable due to existing, 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.There is certain defect in implant dental structure of the prior art, it plants tooth body and retained abutment syndeton defective tightness, and be easy to cause impurity to enter in screw thread, affect being fixedly connected with of the two, and it is planted and between tooth body and tissue, also exists in conjunction with defective tightness reliably, easily produces the problems such as loosening.In addition, it is poor that in existing design also usually there is mechanical property and biocompatibility in implant dental structure, there will be repulsion, and affect the problems such as its service life after long-time use with tissue.

Utility model content

The purpose of this utility model is to provide a kind of dental structure of planting of canine implant, the planting dental structure and can closely be connected with alveolar bone planting tooth body in real time of this canine implant, the sealing of its connection and good stress performance, and can avoid preferably it to be subject to the interference of alternating force, simple in structure, intensity is higher, and has good biocompatibility concurrently.

The purpose of this utility model is achieved in that

Canine implant plant a dental structure, it is characterized in that: it forms by planting tooth body, retained abutment and extension spring; The described tooth body inside of planting 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 °; This plants tooth body is the clava being made up of cervical region, middle part and afterbody, and its cervical region and afterbody all adopt porous tantalum product, and its porosity is 60% ~ 70%.

Adopt the cervical region of planting tooth body and the afterbody of the porous tantalum product of above-mentioned porosity, can meet it in the mechanical property requirements of planting in dental 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: the cervical region of planting tooth body and the afterbody that adopt porous tantalum product, 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 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 outer surface at above-mentioned middle part of planting 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, and one-body molded with the threaded rod of above-mentioned retained abutment bottom.The Rotary-table on its top can be installed corona in order to Corresponding matching, and has realized the implantation of artificial tooth.

Further, above-mentioned cervical region and afterbody of planting tooth body, realizes and being fixedly connected with of above-mentioned middle part of planting tooth body through bonding or welding respectively.Its connected mode is solid and reliable.

The utlity model has following beneficial effect:

1, adopt the bottom that extension spring one end is fixed on to alveolar bone 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, itself apply the effect of power simultaneously by retained abutment to planting tooth body, make to plant the bottom close contact all the time of tooth body and alveolar bone; 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;

2, 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.

3, as cervical region and the afterbody of planting the non-stress position in tooth body structure, all adopt porous tantalum product, well meet and guaranteed its mechanical property, also greatly increased the biocompatibility that this plants dental structure entirety simultaneously, improve service life and implanted comfort level, having increased 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 of canine implant described in this utility model embodiment 1.

Fig. 2 is the schematic diagram of the Integral connection structure of planting dental structure of canine implant 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: a kind of canine implant plant dental structure, it forms by planting tooth body 1, retained abutment 2 and extension spring 4; It 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 the clava of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8, its middle part 7 adopts medical titanium alloy product, cervical region 6 and afterbody 8 all adopt porous tantalum product, its porosity is 60% ~ 70%, and cervical region 6 and afterbody 8 are specifically realized and to be fixedly connected with this middle part 7 of planting tooth body 1 through laser weld respectively; The outer surface of planting the middle part 7 of tooth body 1 is gas thread; The diameter of its afterbody 8 is narrow compared with cervical region 6 and middle part 7; 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; The Rotary-table Corresponding matching on the top of retained abutment 2 is installed corona, and then has 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, itself apply the effect of power simultaneously by retained abutment 2 to planting tooth body 1, make to plant the bottom close contact all the time of tooth body 1 and alveolar bone; 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 when use.

Claims (5)

1. Canine implant plant a dental structure, it is characterized in that: it forms by planting tooth body (1), retained abutment (2) and extension spring (4); Described tooth body (1) inside of planting 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 °; The described tooth body (1) of planting is for the clava that is made up of cervical region (6), middle part (7) and afterbody (8), and its cervical region (6) and afterbody (8) all adopt porous tantalum product, and its porosity is 60% ~ 70%.
2. According to claim 1 canine implant plant dental structure, it 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).
3. 3. according to the dental structure of planting of canine implant described in claim 1 or 2, 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.
4. 4. according to the dental structure of planting of canine implant described in claim 1 or 2, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (7) of tooth body (1).
5. According to claim 3 canine implant plant dental structure, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (7) of tooth body (1).

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