CN203815636U - 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); springs (5) are arranged in the through hole (4); sliders (6) are arranged at the two ends of the springs (5); grooves (10) are formed in the sliders (6); calking grooves (7) 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 pipe thread (14) 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 (15) is arranged at the lower part of 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 (15); a flow guide groove (16) communicated with the through hole (8) is formed in the bottom end face of the tooth implantation body (1). The implant tooth is tight in connection and has a reasonable structure.

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

The Dental Implant that oral tooth implantation operation at present adopts mostly includes plants tooth body, retained abutment and artificial tooth.It is planted tooth body and imbeds in advance after dental bed, and top refills 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.

Wherein, plant tooth body structure design unreasonable, its mechanical property and biocompatibility are poor, after long-time use, there will be repulsion with tissue, and affect its service life, and it with body bone tissue between while being connected steadiness poor; Can not be again at sclerotin weakness such as bottoms after implantation, then add as biotic factor etc. other to increase the material of planting tooth steadiness.Meanwhile, plant and between tooth body and retained abutment, be mostly regular screw threads and be connected, easily exist and connect defective tightness, and be easy to cause impurity to enter in connecting thread gap, and then affect being fixedly connected with of the two; Between retained abutment and artificial tooth, usually for card edge type connects, the anti-axial-rotation of this connected mode is poor, connects not firmly, easily becomes flexible and easily come off.

In addition, in clinical practice, Dental Implant can be subject to the effect of alternating force for a long time, particularly when mounted, if it moves past many to words lateral deviation, easily occur in a short time becoming flexible, and this becoming flexible can not be tightened again In the view of at present, can only again plant, thereby increased the operations such as plantation again, cause significant wastage.

Utility model content

The purpose of this utility model is to provide a kind of Dental Implant, this Dental Implant can be in real time by retained abutment with artificial tooth, plant tooth body and be closely connected with alveolar bone, can avoid preferably 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 includes 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; On this slide block, be provided with the groove of mounting spring; In described artificial tooth, correspondence is provided with the caulking groove that described slide block is installed; The described tooth body of planting 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%; Its middle part outer surface is gas thread; This is planted tooth body inside and is provided with the perforation running through up and down, and 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 described tooth body bottom end face of planting is also provided with the guiding gutter being communicated with described perforation.

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 shape.

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

The quantity of above-mentioned spring is preferably two, and for arranging up and down.Above-mentioned slide block is provided with two grooves of arranging up and down corresponding to mounting spring place.

Further, the above-mentioned tooth body of planting is rhabodoid, and the diameter of its afterbody is short 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.

It is the gas thread of 55 ° that above-mentioned side of planting tooth body inner perforated middle and upper part is provided with tooth form angle, 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.

Above-mentioned guiding gutter is horizontal distribution, and can also be set to multiple.Setting up guiding gutter can realize the material that the increase such as bone grafting material, biotic factor is planted to tooth steadiness and introduce, be evenly distributed on sclerotin weakness such as planting tooth body bottom, and the stability that increase is connected with sclerotin, and can also greatly improve the broken end of flesh and blood simultaneously and wait the mobility of materials, make it and be set to porous tantalum product to plant tooth body better compatible.

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.

In this utility model, retained abutment and artificial tooth laminating closely, have been played well anti-moving axially, and anti-loosening and effect that come off; Its outer surface of planting tooth body middle part is provided with gas thread, has strengthened with the firm of alveolar bone and has been connected; It plants tooth body and retained abutment adopts gas thread Corresponding matching, and sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread; By perforation and guiding gutter, realize the materials such as biotic factor have been introduced in to sclerotin weakness such as planting tooth body bottom, increase the stability being connected with sclerotin, and further plant that the non-stress position of tooth body---cervical region and afterbody are set to porous tantalum product, well meet and ensured its mechanical property, also greatly increase the biocompatibility of its structural entity simultaneously, improved service life and implanted comfort level, increased stability and anti-verticity after this artificial prosthesis is implanted.In addition, adopt the bottom that extension spring one end is fixed on to alveolar bone, to continue that connected retained abutment is added to elastic force, be fixed in perforation, ensured retained abutment all the time with plant tooth body close contact, make to plant the bottom close contact all the time of tooth body and alveolar bone 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 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 of the retained abutment structure in Dental Implant 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.

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 square through hole 4, this interior middle part of through hole 4 is provided with two springs 5 of arranging up and down, spring 5 two ends, left and right are respectively arranged with slide block 6, this slide block 6 is less than the right-angled trapezium body of lower surface area for upper surface area, and corresponding two grooves 10 that are provided with mounting spring 5 on this slide block 6; The interior correspondence of 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, make and outer surface is provided with gas thread 14 for titanium alloy at its middle part 12, the diameter of its afterbody 13 is short compared with cervical region 11 and middle part 12, and its cervical region 11 and afterbody 13 all adopt porous tantalum product, its porosity is 60% ~ 70%, and this cervical region 11 is specifically fixedly connected with this middle part 12 of planting tooth body 1 through laser weld realization respectively with afterbody 13; Plant tooth body 1 inside and be provided with the perforation 8 running through up and down; In these perforation 8 bottoms, be provided with extension spring 15; Retained abutment 2 bottoms are threaded rod 9, and this threaded rod 9 is connected with one end of extension spring 15; It is the gas thread of 55 ° that the side of planting tooth body 1 inner perforated 8 middle and upper parts is provided with tooth form angle, with the threaded rod 9 of corresponding matching retained abutment 2 bottoms, fixes and is tightly connected with the self-locking that realizes the two; Planting tooth body 1 bottom end face is also provided with and 8 guiding gutters that are communicated with 16 of boring a hole; 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.

By 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.In addition, through adopting the porous tantalum product of above-mentioned porosity, can meet this and plant the mechanical property requirements of tooth body in structure, closely be 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 cervical region of planting tooth body and the afterbody of 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.

Claims (9)

1. a Dental Implant, it includes 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); On this slide block (6), be provided with the groove (10) of mounting spring (5); The interior correspondence of described artificial tooth (3) is provided with the caulking groove (7) that described slide block (6) is installed; The described tooth body (1) of planting 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%; Its middle part (12) outer surface is gas thread (14); This is planted tooth body (1) inside and is provided with the perforation (8) running through up and down, and the interior bottom of this perforation (8) is provided with extension spring (15); Described retained abutment (2) bottom is threaded rod (9), and this threaded rod (9) is connected with one end of described extension spring (15); Described tooth body (1) bottom end face of planting is also provided with the guiding gutter (16) being communicated with described perforation (8).

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: the quantity of described spring (5) is two, and for arranging up and down; Described slide block (6) locates to be provided with two grooves of arranging up and down (10) corresponding to mounting spring (5).

4. according to Dental Implant described in claim 1 or 2, it is characterized in that: described in to plant tooth body (1) be rhabodoid, and the diameter of its afterbody (13) is short compared with cervical region (11) and middle part (12); Described side of planting tooth body (1) inner perforated (8) middle and upper part is provided with gas thread, with the threaded rod (9) of retained abutment described in Corresponding matching (2) bottom.

5. Dental Implant according to claim 3, is characterized in that: described in to plant tooth body (1) be rhabodoid, and the diameter of its afterbody (13) is short compared with cervical region (11) and middle part (12); Described side of planting tooth body (1) inner perforated (8) middle and upper part is provided with gas thread, with the threaded rod (9) of retained abutment described in Corresponding matching (2) bottom.

6. according to Dental Implant described in claim 1 or 2, it is characterized in that: described guiding gutter (16) horizontal distribution, and be multiple; Described cervical region (11) and afterbody (13) of planting 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 guiding gutter (16) horizontal distribution, and be multiple; Described cervical region (11) and afterbody (13) of planting 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 guiding gutter (16) horizontal distribution, and be multiple; Described cervical region (11) and afterbody (13) of planting 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 guiding gutter (16) horizontal distribution, and be multiple; Described cervical region (11) and afterbody (13) of planting 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).