阅读说明：本技术 一种应用于钛或钛合金牙科种植体的表面处理方法 (It is a kind of applied to titanium or the surface treatment method of titanium alloy dentistry implant ) 是由 张德贵 周兴旺 霍进杰 于 2019-08-26 设计创作，主要内容包括：本发明涉及牙科种植领域,具体涉及一种应用于钛或钛合金牙科种植体的表面处理方法,包括如下步骤：对所述钛或钛合金牙科种植体进行喷砂处理；喷砂完成后使用磷酸/草酸混合酸溶液进行酸蚀处理,得到具有多级孔洞结构的钛或钛合金牙科种植体。本发明的优势在于工艺简单、安全、环保,有利于降低成本。采用这种工艺处理的种植体形成包括10-50μm的大孔和2-5μm的小孔的多级孔洞结构,残留颗粒大大降低(平均颗粒残留小于5/mm<Sup>2</Sup>),可以提高表面生物活性,促进成骨细胞在种植体表面的附着,有利于加快骨结合速度,提高牙科种植的成功概率。(The present invention relates to dentistry field of planting, and in particular to and it is a kind of applied to titanium or the surface treatment method of titanium alloy dentistry implant, include the following steps: to carry out blasting treatment to the titanium or titanium alloy dentistry implant；It uses phosphoric acid/oxalic acid mixed acid solution to carry out acid etching after the completion of sandblasting, obtains the titanium with multi-stage pore structure or titanium alloy dentistry implant.Advantage of the invention is that it is simple process, safe and environment-friendly, advantageously reduce cost.Using this process planting body formed include 10-50 μm of macropore and 2-5 μm of aperture multi-stage pore structure, residual particles substantially reduce (average grain residual be less than 5/mm 2 ), surface bioactive can be improved, promote osteoblast in the attachment of implant surface, be conducive to accelerate synosteosis speed, improve the probability of success of dentistry plantation.)

1. a kind of applied to titanium or the surface treatment method of titanium alloy dentistry implant, which comprises the steps of:

Blasting treatment is carried out to the titanium or titanium alloy dentistry implant；Phosphoric acid/oxalic acid mixed acid solution is used after the completion of sandblasting Acid etching is carried out, the titanium with multi-stage pore structure or titanium alloy dentistry implant are obtained.

2. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the titanium alloy is TC4 titanium alloy.

3. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the multi-stage pore structure includes 10-50 μm of macropore and 2-5 μm of aperture.

4. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the time of the acid etching is 10-60min, and temperature is 67-98 DEG C.

5. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the concentration of the oxalic acid is 0.2-3mol/L, and the concentration of the phosphoric acid is 0.3-10mol/L.

6. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In using emery paper to the titanium or titanium alloy dentistry implant surface polishing to remove planting body before the blasting treatment The impurity on surface, the mesh number of the emery paper include 800#, 1000#, 1500# and/or 2000#.

7. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the sandblasting carries out under conditions of pressure is 0.1-1.0MPa.

8. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In using partial size for 80-200 μm of Al in the sandblasting₂O₃Particle.

9. a kind of as described in claim 1 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In, after the completion of the sandblasting and/or ultrasonic wave added, which is carried out, with water after acid etching washs, wash time 10-60min, ultrasound Frequency is 45-65KHz.

10. a kind of as claimed in claim 9 exist applied to titanium or the surface treatment method of titanium alloy dentistry implant, feature In the titanium or titanium alloy dentistry implant with multi-stage pore structure, which has, is less than 5/mm²Residual particles amount.

Technical field

The present invention relates to dentistry field of planting, and in particular to a kind of applied at the surface of titanium or titanium alloy dentistry implant Reason method.

Background technique

In the research and application of artificial growth body, titanium or titanium alloy material is due to low-density, low modulus, high-strength Degree, corrosion resistance the features such as and receive much attention always.But there are Integrated implant rates in tooth-planting for untreated titanium material Low, the problems such as crop cycle is long, interfacial instability.

Surface treatment for planting body, sandblasting-aciding are commonly recognized:

107854724 A of patent CN discloses the construction method of planting body active surface, use after sandblasting " hydrochloric acid/ Hydrofluoric acid " processing, then carries out alkali heat-treatment, finally introduces in implant surface and carries silver-colored polymeric layer, improves antibiotic property；Patent 102925897 A of CN discloses a kind of implant surface processing method, by sandblasting-acid etching, forms rough surface；Specially Sharp 104921825 A of CN discloses a kind of surface treatment method of titanium matter planting body, uses " hydrochloric acid/sulfuric acid " after sandblasting Then processing is handled 24-72 hours using NaOH；107662133 A of patent CN discloses a kind of dentistry implant surface treatment Technique, by being handled after sandblasting using " hydrochloric acid/sulfuric acid ".

Sandblasting aciding is expected to industrially be applied on a large scale at home, but waits at present there are still some problems It solves.On the one hand, it will lead to part sand grains in sandblasting procedures to be embedded into inside titanium or titanium alloy, even if the later period is using at acid etching Reason, can not also completely remove residual particles, reduce the bioactivity of planting body.On the other hand, existing sandblasting aciding is more Use sulfuric acid, hydrochloric acid, hydrofluoric acid for pickling solution, wherein sulfuric acid corrosion harmfulness is extremely strong, and hydrochloric acid volatilization irritation is serious, hydrogen fluorine Sour toxicity is high, and the use of these acid is not able to satisfy the requirement of modern industry cleaning, safety in production.Therefore, using a kind of phase The acid of safety and environmental protection handles planting body, while making its surface topography and bioactivity meet the requirements just to seem especially heavy It wants.

Summary of the invention

The present invention is intended to provide a kind of safety and environmental protection surface processing technology for dental implant, passes through improved sandblasting-aciding Planting body is handled, implant surface is made to form multi-stage pore structure, improves surface bioactive, osteoblast is promoted to exist The attachment of implant surface.

The present invention provides a kind of applied to titanium or the surface treatment method of titanium alloy dentistry implant, includes the following steps:

Blasting treatment is carried out to the titanium or titanium alloy dentistry implant；Phosphoric acid/oxalic acid mixed acid is used after the completion of sandblasting Solution carries out acid etching, finally obtains titanium or titanium alloy dentistry implant with multi-stage pore structure.

Preferably, the titanium alloy is TC4 titanium alloy.

Preferably, the multi-stage pore structure includes 10-50 μm of macropore and 2-5 μm of aperture.

Preferably, the time of the acid etching is 10-60min, and temperature is 67-98 DEG C.

Preferably, the concentration of the oxalic acid is 0.2-3mol/L, and the concentration of the phosphoric acid is 0.3-10mol/L.

Preferably, use emery paper to the titanium or titanium alloy dentistry implant surface polishing before the blasting treatment To remove the impurity of implant surface, the mesh number of the emery paper includes 800#, 1000#, 1500# and/or 2000#.

Preferably, the sandblasting carries out under conditions of pressure is 0.1-1.0MPa.

Preferably, use partial size for 80-200 μm of Al in the sandblasting₂O₃Particle.

Preferably, it is washed after the completion of the sandblasting and/or with water progress ultrasonic wave added after acid etching, wash time is 10-60min, supersonic frequency 45-65KHz.

Preferably, the titanium or titanium alloy dentistry implant with multi-stage pore structure, which has, is less than 5/mm²Residual Grain amount.

Present invention has an advantage that

It is simple process, safe and environment-friendly, advantageously reduce cost.Being formed using the planting body of this process includes 10- The multi-stage pore structure of 50 μm of macropore and 2-5 μm of aperture, residual particles substantially reduce (average grain remain less than 5/ mm²), surface bioactive can be improved, promote osteoblast in the attachment of implant surface, be conducive to accelerate synosteosis speed Degree improves the probability of success of dentistry plantation.

Detailed description of the invention

Fig. 1 is the SEM spectrum of 1 products obtained therefrom of embodiment.

Fig. 2 is the SEM spectrum of 2 products obtained therefrom of embodiment.

Fig. 3 is the SEM spectrum of 3 products obtained therefrom of embodiment.

Fig. 4 is the SEM spectrum of 4 products obtained therefrom of embodiment.

Specific embodiment

Below with reference to embodiment, the present invention is described in further detail, and embodiments of the present invention are not limited thereto.