CN106420081A

CN106420081A - Zirconium oxide compound implant

Info

Publication number: CN106420081A
Application number: CN201610998214.1A
Authority: CN
Inventors: 刘光容; 朱爱萍
Original assignee: Shaoxing Huajing Sci-Tech Co Ltd
Current assignee: Shaoxing Huajing Sci-Tech Co Ltd
Priority date: 2016-11-11
Filing date: 2016-11-11
Publication date: 2017-02-22

Abstract

The invention discloses a zirconium oxide compound implant used for repairing missing teeth, and belongs to the field of medical dental technologies. The zirconium oxide compound implant is characterized by comprising a shell made from zirconium oxide materials, wherein a threaded interlocking part is embedded into the zirconium oxide shell, a thread and multiple fixing platforms are arranged on the shell of the zirconium oxide implant, and a positioning sealing portion of Morse's taper, an internal positioning portion in a regular polygon shape and an internal thread are sequentially arranged on the threaded interlocking part from top to bottom. The zirconium oxide compound implant has good biological compatibility and anti-bacterial performance and can completely replace a pure-titanium implant.

Description

A kind of zirconium oxide composite implant

Technical field：

The present invention relates to a kind of implantation body, specifically relates to a kind of zirconium oxide composite implant.

Background technology：

In implantation body makes, consideration, the biocompatibility of its material and human oral cavity dental bed bone is first had to.Now knowable raw The compatible material of thing has pure titanium and zirconium oxide.

The present invention in the past, in prior art, is most commonly used that pure titanium（Or extraordinary titanium alloy）The implantation body of making.In titanium In the use of implantation body, titanium implant can produce Ti allergy to individual patient personnel, can cause postoperative to carry out CT scan inspection, core Magnetic resonance examination implantation body is impacted with the scanning signal of the surgery situation such as the synosteosis of dental bed bone, and doctor judges also to be subject to shadow Ring.Therefore the inconvenience during titanium implant use is caused, limit widely using for titanium implant.

The rockiness of zirconia material causes the difficulty which is processed, and implantation body is small size labyrinth, in high precision Object, such as commonly use external diameter Ф 4MM implantation body, in pure titanium screw thread locking part 2, overall length 12MM, in interior Mohs cone 2-1, taper is 5.7 °, big footpath Ф 2.53MM, in interior regular hexagon 2-2, regular hexagon length of side 2.1MM, deep 1.41MM, female thread 2-3 screw thread M1.6*0.31, reach 4.5MM, preboring screwed hole Ф 1MM, and also tri- part of 2-1,2-2,2-3 is coaxial no more than 0.02MM, such dimensional requirement, it is exactly with metal material processing, has been high-precision part.Such as with the zirconium oxide before sintering Porcelain block of material will can consider sintering shrinkage and sintering warpage, very difficult control doing；Such as make of the zirconia material after sintering, do not have There is so little grinding tool to be processed, and interior regular hexagon cannot grind and（Positive six in processing in metallic titanium material Side shape, is cold extrusion shaped using forming punching head）.Infeasible in processing technique.Say again, if integrated oxidation zirconium does, There is screw thread on shell, there is female thread inside, there is flank in two faces, sintering stress is concentrated, and can cause cracking.Its difficulty of processing is to pole Cause.So rare zirconium oxide implantation body in the market.

In view of the difficulty of processing of zirconia ceramicss is big, the small-size object that implantation body is elaborate is added, so especially It is difficult to, rare zirconium oxide implantation body on market.Therefore it provides a kind of zirconium oxide compatible with good biological and pure titanium are multiple Implantation body is closed, is an urgent demand in market.

Content of the invention：

It is an object of the invention to provide the zirconium oxide composite implant of a kind of good biocompatibility and antibiotic property.

The technical scheme that the present invention takes is as follows：

A kind of zirconium oxide composite implant, it is characterised in that：Including in order to the synestotic shell of dental bed, the shell adopts oxygen Change zirconia material to make；There is screw thread locking part in the inside assembly of zirconium oxide shell, the screw thread locking part, for positioning and fixing The plantation base station being mounted in implantation body.

Be further disposed in：

Screw thread and fixed platform is provided with zirconium oxide shell.

The location sealing portion of interior Morse's taper is sequentially provided with described screw thread locking part from top to bottom, internal regular polygon Location division, and female thread.

The screw thread locking part is provided with the location division of internal regular polygon, and its regular polygon can be square, and positive six Side shape, one kind of octagon etc..

The making material of the screw thread locking part preferably adopts pure titanium, it would however also be possible to employ titanium alloy or other non-corrosive material systems Become.

The operation principle of the present invention is as follows：

The present invention is contacted with dental bed bone photo using zirconium oxide shell, and the screw thread locking part of interior setting-in is used for positioning and being installed on Plantation base station in implantation body；Meanwhile, zirconium oxide case surface is roughened.It is experimentally confirmed：With coarse table The zirconium oxide implantation body in face, implantation body screws out moment of torsion and bone contact ratio result is superior to titanium alloy implant, zirconium oxide Implantation body is implanted in the tooth extraction wound of patient's lateral incisor, and plaque index after 6 months is visited and examines bleeding, is visited and is examined depth, clinical image Learn the clinical indices such as inspection very good, and bone regeneration around implant no bone resorption.Since having between zirconium oxide implantation body and dental bed bone so Advantage, the zirconium oxide that research making shell is contacted with dental bed bone photo and pure titanium composite implant are necessary to.

The present invention compared with the prior art, with advantages below：

1st, as zirconium oxide shell is contacted with dental bed bone photo, be conducive to synosteosis, generate stable implantation body.

2nd, as zirconium oxide shell is during planting and in later life-time service, produced plaque index is low, favorably Improve in anti-microbial property.

3rd, pure titanium thread connector is easy to process with respect to zirconia ceramicss part, be suitable for make complex shape containing interior not The part of family name's taper, internal regular polygon and female thread.

Below in conjunction with the drawings and specific embodiments, the invention will be further described：

Description of the drawings：

Fig. 1 is the structural representation of zirconium oxide embodiment of the present invention；

Fig. 2 is the upward view of Fig. 1；

Fig. 3 is the structural representation of the pure titanium screw thread locking part embodiment of the present invention；

Fig. 4 is zirconium oxide and pure titanium composite implant general assembly structure chart.

Specific embodiment：

As described in Fig. 1-Fig. 4, a kind of zirconium oxide composite implant of the present invention, including the shell 1 that zirconia material is made, in oxygen The inside assembly of change zirconium shell 1 has the screw thread locking part 2 that pure titanium is made.

Described as shown in Figure 1, Figure 2, screw thread 1-1 is opened up on zirconium oxide shell, forms several fixed platforms 1-2.Its surface is entered Row roughening is processed.

As shown in figure 3, set gradually on pure titanium screw thread locking part being provided with interior Morse's taper part 2-1, internal regular polygon 2- 2, female thread 2-3.

As shown in figure 4, pure titanium screw thread locking part 2 is embedded in zirconium oxide shell 1, overall 3 are combined into medical glue, just Make zirconium oxide and pure titanium composite implant.

By a kind of zirconium oxide composite implant of the present invention, and existing pure titanium implant, carry out respectively biocompatibility, The performance detections such as antibiotic property, as a result as shown in table 1：

The table 1, present invention is compareed with prior art products performance

Title	Biocompatibility	Antibiotic property（Adherent bacteria total amount pair）	Screw threads for fastening	Other clinical indices
					Zirconium oxide composite implant	Well	1.33 ± 0.27 pairs	Firm	No TI allergy
Pure titanium implant	Well	1.06 ± 0.33 pairs	Firm	Occasionally there is TI allergy

In conjunction with shown in table 1, the present invention has reached and pure titanium implant compared with the pure titanium implant that has commonly used, substantially Identical performance, and with regard to zirconium oxide composite implant in some aspects, also there is which unique：

1st, due to zirconium oxide shell and dental bed bone also can bio-compatible, preferable synosteosis can be carried out.

2nd, due to zirconium oxide shell and dental bed synosteosis, its bacterial plaque number is few, and anti-microbial property is good.

3rd, due to the base station of the safe upper end of positioning implantation body securely of pure titanium screw thread locking part energy, and become one with screw attachment Body, removes the puzzlement that zirconia ceramicss difficulty is processed into complex parts from.

4th, due to the faying face combined with dental bed bone photo after surgery by zirconium oxide shell, no Ti allergic phenomena, is easy to postoperative work CT scan, nuclear magnetic resonance check.

Above example is only used as further illustrating the present invention, and technical scheme is existing in the claims Description, done change and improvement on the premise of basic structure of the present invention is not changed, all protection scope of the present invention it Interior.

Claims

1. a kind of zirconium oxide composite implant, it is characterised in that：Including：In order to the synestotic shell of dental bed, the shell adopts Made with zirconia material；Have a screw thread locking part in the inside assembly of zirconium oxide shell, the screw thread locking part, for positioning and The plantation base station being installed in implantation body.

2. a kind of zirconium oxide composite implant according to claim 1, it is characterised in that：Body case planted by the zirconium oxide It is provided with screw thread.

3. a kind of zirconium oxide composite implant according to claim 1, it is characterised in that：The zirconium oxide shell is provided with Several fixed platforms.

4. zirconium oxide composite implant according to claim 1, it is characterised in that：The zirconium oxide case surface is carried out slightly Roughening is processed.

5. a kind of zirconium oxide composite implant described in 1 is required according to power kind, it is characterised in that：On described screw thread locking part certainly The location sealing portion of interior Morse's taper, the location division of internal regular polygon, and female thread is sequentially provided with above.

6. zirconium oxide composite implant according to claim 1, it is characterised in that：It is interior that the screw thread locking part is provided with Regular polygon location division, its regular polygon is one kind of square, regular hexagon, octagon.

7. zirconium oxide composite implant according to claim 1, it is characterised in that：The making material of the screw thread locking part One kind for pure titanium, titanium alloy or non-corrosive material.