Preparation method for superhydrophilic micro-nano composite dental implant surface

The invention discloses a dental implant and a surface treatment method thereof. The surface treatment method for the dental implant comprises the following steps of dental implant cleaning, sandblasting, surface acid etching, surface nanocrystallization processing, soaking, calcinating, and cleaning and the like, so that the dental implant adopting a micron and nanometer mixed structure and having the visible-light catalytic activity through nitrogen doping is obtained. The dental implant achieves preferable hydrophilia, protein adsorption capacity and good biological activity.

Dental implant and surface treatment method thereof

The invention relates to a method for electrochemical coloring of metallic titanium and titanium-based alloys. Through electrochemical coloring at normal temperature and under normal pressure, the electrochemical anode on the surface of metallic titanium and a titanium-based alloy can be rapidly oxidized to blue, yellow and other colors, and the corrosion resistance and wear resistance of metallic titanium and titanium-based alloys can be effectively improved. The method provided by the invention has the advantages of low cost, environment friendliness, high efficiency and simple process, is easy for industrial application, and has wide application prospect.

Method for electrochemical coloring of metallic titanium and titanium-based alloys

The invention discloses a method for constructing a micrometer/nanometer hierarchical structure with super hydrophilicity on the surface of a titanium dental implant. The method comprises the following steps: sand blasting treatment: emery is used for the sand blasting treatment on the surface of the titanium dental implant; acid etching treatment: the titanium dental implant after the sand blasting treatment is placed in liquid for acid etching for the acid etching treatment, wherein the acid etching temperature is 70-100 DEG C, and the acid etching time is 5-45 minutes; alkaline thermal treatment: the titanium dental implant after the acid etching treatment is placed in alkaline liquor for the alkaline thermal treatment, wherein the treatment temperature is 50-90 DEG C, and the treatment time is 1-10 hours; after each step, the titanium dental implant is placed in acetone, 95% ethanol and deionized water in order for ultrasonic cleaning respectively, and drying is carried out. The method has simple steps and is easy to operate, and the surface of the titanium dental implant with the constructed micrometer/nanometer hierarchical structure has effectively improved micromorphology and hydrophilicity.

Method for constructing micrometer/nanometer hierarchical structure with super hydrophilicity on surface of titanium dental implant

The invention discloses a method for preparing a two-stage micron-submicron microstructure on the surface of a titanium alloy dental implant. The titanium alloy implant is activated, and is processed through surface modification such as direct current electrolytic etching and alternating current etching, so that a two-stage micron-submicron microstructure shape can be formed on the surface of the implant. The two-stage micron-submicron microstructure shape is prepared on the surface of the titanium alloy dental implant, so that the method achieves the property of guiding the adhesion of osteoblasts, can simulate natural histomorphology in vivo, can guide the bone matrix formation on the surface rapidly, and can promote the formation of good synosteosis. Therefore, the titanium alloy dental implant can promote the formation of new bones, can short the healing time, and can achieve the ideal effect that the titanium alloy dental implant can take on the recovery function as soon as being implanted further.

Method for preparing two-stage micron-submicron microstructure on surface of titanium alloy dental implant

The invention discloses a surface anodization coloring treatment method for titanium and titanium alloy, comprising the following technological process: firstly, putting titanium and titanium alloy sample pieces into an acetone solution and a caustic soda solution in sequence for cleaning oil stain, then cleaning with distilled water, drying, and putting the titanium and titanium alloy sample pieces into electrolyte for treatment, wherein the electrolyte is a mixed solution of phosphoric acid and sodium gluconate The invention has the characteristics of simple technology, good binding force between an oxide film and a substrate, bright and uniform color and lower cost

Surface anodization coloring treatment method for titanium and titanium alloy

The invention discloses a preparation method of a titanium dental implant, which includes the following steps: arranging the dental implant to be in spiral shape, increasing the initial contact area of the implant, improving the initial stability of the implant, increasing the surface area of the implant and improving the stress distribution at the bone interface; obtaining a rough surface through abrasive blasting; designing a porous structure on the surface of the implant through a laser etching method; preparing a porous TiO2 oxide film on the surface of the implant through an anodic oxidation method, wherein the oxide film has a rough surface and has round pits in different sizes at local parts; treating the anodized titanium surface through alkali liquor to form a titanium gel layer rich in Ti-OH groups which induce the production of calcium phosphate crystal nucleus to form an osteoid apatite layer. The invention processes the medical pure titanium to be in spiral shape and modifies the surface of the implant through a series of methods of abrasive blasting, laser etching and anodic oxidation so as to enhance the bonding strength of the implant and the bone and to improve the success rate of the repair of the implant.

Preparation method of titanium dental implant

The invention discloses a method for preparing a porous structure on the surface of a pure titanium dental implant, which comprises the following steps of sand blasting on the surface of the pure titanium dental implant and double acid treatment so that a layer of multistage porous structure is formed on the surface of the pure titanium dental implant. By using the method, the porous structure prepared on the surface of the pure titanium dental implant has good bone tissue compatibility, and the combination intensity of the dental implant and bone tissue can be improved, so that long-term clinical success rate of the dental implant is improved, and the method has the characteristics of being simple in technology, easy in equipment machining, and capable of reducing the cost greatly.

Method for preparing porous structure on surface of pure titanium dental implant

A surface activation method of a dental implant comprises: putting a titanium implant in 1-3M of H2SO4 liquid, using the titanium or titanium alloy of the titanium implant as an anode and using a Pt material as a cathode to carry out anode oxidation by using an anode oxidation method, preparing an oxidation film with a three-dimensional spherical pore microstructure on a surface, and existing round pits in different sizes and with apertures of 100-200nm in local areas; and putting the titanium implant with the oxidized anode in 3-5M of NaOH alkali solution for processing and forming a titanium gel on the surface, wherein the enriched Ti-OH groups induce the generation of calcium phosphate crystal nucleuses to form a bone-like apatite layer. The invention uses the combination of the anode oxidation method and an alkali process method for preparing an active TiO2 coating layer on the surface of the titanium alloy, the implant processed by the anode oxidation method has good compatibility with bone, and bonding strength and bone sediment yield are both obviously higher than that of the unprocessed titanium, thereby greatly improving the clinic success ratio of the dental implant.

Guoqiang Xu

Papers

Surface anodization coloring treatment method for titanium and titanium alloy

Preparation method of titanium dental implant

Method for preparing porous structure on surface of pure titanium dental implant

Surface activation method of dental implant