CN203634315U - Tooth implantation structure of implant tooth - Google Patents

Abstract

The utility model relates to a tooth implantation structure of implant tooth. The tooth implantation structure of the implant tooth comprises an implant tooth body (1), a retention drill base (2) and an extension spring (4), wherein a through hole (3) through up and down is formed inside the implant tooth body (1); a common screw thread is formed in the surface inside the implant tooth body (1) at the upper middle part of the through hole (3), the extension spring (4) is arranged inside the implant tooth body (1) at the lower part of the through hole (3); a threaded rod (5) is arranged at the lower part of the retention drill base (2); the threaded rod (5) is connected with one end of the extension spring (4) and is fitted with the common screw thread in the surface inside the implant tooth body (1); the implant tooth body (1) is a cylinder composed of a neck part (6), a middle part (7) and a tail part (8); the neck part (6) and the tail part (8) respectively adopt a porous tantalum workpiece, and porosity is 60-70%. The tooth implantation structure of the implant tooth can tightly connect the implant tooth body with an alveolar bone in real time, interference of an alternating force on the implant tooth body is avoided, and the tooth implantation structure of the implant tooth has simple structure and high strength and also has good biocompatibility.

Description

A kind of Dental 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 Dental Implant.

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 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.On structure arranges, there is certain defect in the tooth body of planting of the prior art, cause it to be combined defective tightness with human body alveolar bone reliable, easily produce the problems such as loosening, and its mechanical property and biocompatibility are also poor, 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 a kind of dental structure of planting of Dental Implant, the dental structure of planting of this Dental Implant can be in real time will be planted tooth body with alveolar bone, be closely connected with retained abutment, 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

Dental 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; The inner surface of tooth body of planting of this through hole middle and upper part is provided with regular screw threads, 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 coordinates with described regular screw threads of planting the inner surface setting of tooth body; This plants tooth body is the cylinder 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.

Further, above-mentionedly plant the cervical region of tooth body and the diameter at middle part is consistent, and the outer surface at middle part is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody is narrow compared with cervical region or 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, ensured 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 ensured fixed effect;

2, as cervical region and the afterbody of planting the non-stress position in tooth body structure, all adopt porous tantalum product, well meet and ensured 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;

3, plant tooth body and adopt regular screw threads to be connected with retained abutment, easily produce self-locking, good stress performance.

Brief description of the drawings

Fig. 1 is the decomposition texture schematic diagram of planting dental structure of Dental Implant described in this utility model embodiment 1.

Fig. 2 is the structural representation of the integrated connection of planting dental structure of Dental Implant described 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: a kind of Dental 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; The inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts is provided with regular screw threads, and tooth body 1 inside of planting of these through hole 3 bottoms is 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 coordinate with the regular screw threads of planting tooth body 1 inner surface setting; It plants the cylinder 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 cervical region 6 of planting tooth body 1 is consistent with the diameter at middle part 7, and the outer surface at middle part 7 is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody 8 is narrow compared with cervical region 6 or 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, ensured 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 ensured fixed effect when use.

Claims (5)

1. Dental 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; The inner surface of tooth body (1) of planting of this through hole (3) middle and upper part is provided with regular screw threads, 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 coordinates with described regular screw threads of planting tooth body (1) inner surface setting; The described tooth body (1) of planting is for the cylinder 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 Dental Implant plant dental structure, it is characterized in that: described in to plant the cervical region (6) of tooth body (1) consistent with the diameter of middle part (7), and the outer surface of middle part (7) is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody (8) is narrow compared with cervical region (6) or middle part (7).
3. 3. according to the dental structure of planting of Dental 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 Dental 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 Dental 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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