CN203815635U - Implant tooth - Google Patents

Abstract

The utility model relates to an implant tooth. The implant tooth comprises a tooth implantation body (1), a retention base table (2) and a false tooth (3) and is characterized in that a through hole (4) is formed in a head of the retention base table (2); a spring (5) is arranged in the through hole (4); sliders (6) are arranged at the two ends of the spring (5) respectively; calking grooves (7) for installing the sliders (6) are formed in the false tooth (3); the tooth implantation body (1) comprises a neck (11), a middle part (12) and a tail (13); the neck (11) and the tail (13) adopt porous tantalum parts with porosity of 60-70%; a general thread (10) is arranged on the outer surface of the middle part (12); a vertical through hole (8) is formed inside the tooth implantation body (1); an extension spring (14) is arranged at the lower part in the through hole (8); a threaded rod (9) is arranged at the lower part of the retention base table (2) and is connected with one end of the extension spring (14). The implant tooth is tight in connection, has a reasonable structure and has good biocompatibility.

Description

A kind of Dental Implant

Technical field

This utility model relates to oral cavity canine implant, relates in particular to a kind of Dental Implant.

Background technology

What at present oral tooth implantation operation adopted plant, and dental structure mostly includes plants tooth body, retained abutment and artificial tooth.Plant tooth body and imbed in advance after dental bed, its top refills and establishes retained abutment, and this retained abutment exposes to dental bed surface and artificial tooth is installed, and realizes the implantation of artificial tooth with this.Between its retained abutment and artificial tooth, often for card edge type connects, the anti-axial-rotation of this connected mode is poor, and has the problem that connects not firmly, easily becomes flexible, comes off; Meanwhile, it plants the standing cylindricality or irregularly shaped of counting of tooth body, it with body bone tissue between while being connected steadiness poor, the irregularly shaped body having is also difficult to processing and manufacturing.

In clinical use, Dental Implant can be subject to the effect of alternating force for a long time, 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.In addition, existing Dental Implant can not be at sclerotin weakness such as bottoms after implantation, then add as biotic factor etc. other to increase the material of planting tooth steadiness; Also exist mechanical property and biocompatibility poor simultaneously, 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 Implant, this Dental Implant can closely be connected retained abutment with corona in real time, to plant tooth body is closely connected with alveolar bone simultaneously, can avoid being preferably subject to the interference of alternating force, also be convenient to importing and increase the material of planting tooth steadiness, rational in infrastructure, and have good biocompatibility concurrently.

The purpose of this utility model is achieved in that

A kind of Dental Implant, it comprises plants tooth body, retained abutment and artificial tooth, it is characterized in that: in described retained abutment head, be provided with through hole, in this through hole, be provided with spring, both ends of the spring is respectively arranged with slide block; In described artificial tooth, correspondence is provided with the caulking groove that described slide block is installed; This is planted tooth body and is 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%, and its middle part outer surface is regular screw threads; This is planted tooth body inside and is provided with the perforation running through up and down, in this perforation 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.

The porous tantalum product of above-mentioned porosity, can meet this and plant tooth body and plant the mechanical property requirements in dental structure at this, is 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: 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, 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.

Above-mentioned slide block, is excellently less than the right-angled trapezium body of lower surface area for upper surface area.This slide block also can be set to the object that other sides such as right angle trigonometry body are inclined-plane, or the object of other shapes.

Above-mentioned retained abutment head is cuboid, and with artificial tooth corresponding matching, can further increase anti-axial-rotation.

Above-mentioned side of planting tooth body inner perforated middle and upper part is provided with regular screw threads, and with the threaded rod of the above-mentioned retained abutment of corresponding matching bottom, and then the self-locking that realizes the two is fixedly connected with, and good stress performance.

Further, the above-mentioned tooth body of planting is shaft-like, and the diameter at its cervical region and middle part is consistent; The diameter of its afterbody is short 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.

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.

Retained abutment in this utility model and artificial tooth laminating closely, have been played well anti-moving axially, and anti-loosening and effect that come off; Meanwhile, the outer surface of planting tooth body middle part is also provided with regular screw threads, has further strengthened with the firm of alveolar bone and has been connected.In addition, 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 perforation 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.

Brief description of the drawings

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

Fig. 2 is the Integral connection structure schematic diagram of Dental Implant in Fig. 1.

Fig. 3 is the axonometric drawing after the retained abutment of Dental Implant in Fig. 1 is amplified.

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.

As shown in Figures 1 to 3: a kind of Dental Implant, it includes plants retained abutment 2 and the artificial tooth 3 that tooth body 1, head are cuboid; In its retained abutment 2 heads, be provided with rectangular through holes 4, this interior middle part of through hole 4 is provided with a spring 5, and spring 5 two ends, left and right are respectively arranged with slide block 6; Slide block 6 is less than the right-angled trapezium body of lower surface area for upper surface area; The interior correspondence of its artificial tooth 3 is provided with the caulking groove 7 that slide block 6 is installed; This plants the rhabodoid of tooth body 1 for being made up of cervical region 11, middle part 12 and afterbody 13, its middle part 12 adopts medical titanium alloy product, cervical region 11 and afterbody 13 all adopt porous tantalum product, its porosity is 60% ~ 70%, and cervical region 11 and afterbody 13 are specifically realized and to be fixedly connected with this middle part 12 of planting tooth body 1 through laser weld respectively; It is the regular screw threads 10 of 60 ° that its middle part 12 outer surfaces are provided with tooth form angle, and its cervical region 11 is consistent with the diameter at middle part 12, and the diameter of its afterbody 13 is short compared with cervical region 11 or middle part 12; This is planted tooth body 1 inside and is provided with the perforation 8 running through up and down; In these perforation 8 bottoms, be provided with extension spring 14; Retained abutment 2 bottoms are threaded rod 9, and this threaded rod 9 is connected with one end of extension spring 14; The side of planting tooth body 1 inner perforated 8 middle and upper parts is provided with regular screw threads, and with the threaded rod 9 of corresponding matching retained abutment 2 bottoms, and then the self-locking that realizes the two is fixedly connected with; This head is the retained abutment 2 of cuboid, adopt medical titanium alloy make, and with artificial tooth 3 corresponding matching, realized the implantation of artificial tooth.

Retained abutment 2 heads are processed with to through hole 4, and configuration can be at the slide block 6 of through hole 4 interior slips, along with artificial tooth 3 is toward lower slider, promote slide block 6 to the interior movement of through hole 4, after artificial tooth 3 moves into place, slide block 6 embeds in the caulking groove 7 on artificial tooth 3, now by the effect of spring 5, make slide block 6 can keep with artificial tooth 3 on caulking groove 7 laminating closely, thereby play well anti-axially movable effect, and anti-loosening and effect that come off.And realize sclerotin weakness such as planting tooth body 1 bottom has been introduced, has been evenly distributed on to other materials of planting tooth steadiness to increase such as biotic factor by perforation 8 is set, and increased the stability being connected with sclerotin, make its be set to porous tantalum product to plant tooth body 1 better compatible.

Claims (9)

1. a Dental Implant, it comprises plants tooth body (1), retained abutment (2) and artificial tooth (3), it is characterized in that: in described retained abutment (2) head, be provided with through hole (4), be provided with spring (5) in this through hole (4), spring (5) two ends are respectively arranged with slide block (6); The interior correspondence of described artificial tooth (3) is provided with the caulking groove (7) that described slide block (6) is installed; This is planted tooth body (1) and is made up of cervical region (11), middle part (12) and afterbody (13), and its cervical region (11) and afterbody (13) all adopt porous tantalum product, and its porosity is 60% ~ 70%, and its middle part (12) outer surface is regular screw threads (10); This is planted tooth body (1) inside and is provided with the perforation (8) running through up and down, and this perforation (8) is provided with extension spring (14) in bottom; Described retained abutment (2) bottom is threaded rod (9), and this threaded rod (9) is connected with one end of described extension spring (14).

2. Dental Implant according to claim 1, is characterized in that: described slide block (6) is less than the right-angled trapezium body of lower surface area for upper surface area; Described retained abutment (2) head is cuboid, and with artificial tooth (3) corresponding matching.

3. according to Dental Implant described in claim 1 or 2, it is characterized in that: described in plant tooth body (1) inner perforated (8) middle and upper part side be provided with regular screw threads, with the threaded rod (9) of retained abutment described in corresponding matching (2) bottom.

4. according to Dental Implant described in claim 1 or 2, it is characterized in that: described in plant tooth body (1) for shaft-like, and its cervical region (11) is consistent with the diameter of middle part (12); The diameter of its afterbody (13) is short compared with cervical region (11) or middle part (12).

5. Dental Implant according to claim 3, is characterized in that: described in plant tooth body (1) for shaft-like, and its cervical region (11) is consistent with the diameter of middle part (12); The diameter of its afterbody (13) is short compared with cervical region (11) or middle part (12).

6. according to Dental Implant described in claim 1 or 2, it is characterized in that: described in plant cervical region (11) and the afterbody (13) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (12) of tooth body (1).

7. Dental Implant according to claim 3, is characterized in that: described in plant cervical region (11) and the afterbody (13) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (12) of tooth body (1).

8. Dental Implant according to claim 4, is characterized in that: described in plant cervical region (11) and the afterbody (13) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (12) of tooth body (1).

9. Dental Implant according to claim 5, is characterized in that: described in plant cervical region (11) and the afterbody (13) of tooth body (1), respectively through bonding or welding realize with described in plant being fixedly connected with of middle part (12) of tooth body (1).