Production of porous structure with biological activity on surface of pure-titanium tooth implantation
A technology of dental implants and porous structures, which is applied in dental preparations, dental prostheses, dentistry, etc., can solve the problem that materials do not have the function of promoting or inducing osteogenesis, so as to improve the clinical success rate and improve the compatibility of bone tissue. Effect
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Embodiment 1
[0019] (1) The surface of the pure titanium dental implant is sandblasted with large particles of 0.25-1.5mm corundum, and the pressure is 4bar, so that the surface forms an irregular rough surface with ups and downs, that is, micron-sized pits, and then placed in acetone at a concentration of 75% ethanol, ultrasonic cleaning in distilled water, and drying;
[0020] (2) Use 0.09mol / L HF and 0.11mol / L HNO 3 The formed mixture was treated for 5 minutes, rinsed with double distilled water, and dried;
[0021] (3) Use 5.60mol / L HCl and 9.20mol / L HCl again 2 SO 4 The mixture was treated at 70°C for 40 minutes, rinsed with double distilled water, and dried;
[0022] (4) Last 8.0mol / L H 2 o 2 Treat with 0.15mol / L HCl mixture at 80°C for 20min, then heat-treat at 400°C for 1.5h, and cool naturally to obtain a surface with a bioactive porous structure; make TiO on the surface of pure titanium 2 The layer is transformed into an anatase crystal phase structure, which has the effect...
Embodiment 2
[0025] (1) The surface of the pure titanium dental implant is sandblasted with large particles of 0.25-1.5mm corundum, and the pressure is 4bar, so that the surface forms an irregular rough surface with ups and downs, that is, micron-sized pits, and then placed in acetone at a concentration of 75% ethanol, ultrasonic cleaning in distilled water, and drying;
[0026] (2) Use 0.13mol / L HF and 0.07mol / L HNO 3 The formed mixture was treated for 15 minutes, rinsed with double distilled water, and dried;
[0027] (3) Use 6.00mol / L HCl and 8.70mol / L HCl again 2 SO 4 The mixture was treated at 90°C for 20 minutes, rinsed with double distilled water, and dried;
[0028] (4) Last 10.0mol / L H 2 o 2 Treat with 0.05mol / L HCl mixed solution at 80°C for 30min, then heat-treat at 400-500°C for 0.5h, and cool naturally to obtain a surface with a biologically active porous structure; make TiO on the surface of pure titanium 2 The layer is converted into an anatase crystal phase structure,...
Embodiment 3
[0030] (1) The surface of the pure titanium dental implant is sandblasted with large particles of 0.25-1.5 mm emery at a pressure of 4 bar, then ultrasonically cleaned in acetone, 75% ethanol, and distilled water, and dried;
[0031] (2) Use 2.75mol / L HF and 3.94mol / L HNO 3 The mixture was treated for 2 minutes, rinsed with double distilled water, and dried;
[0032] (3) Use 5.80mol / L HCl and 8.90mol / L HCl again 2 SO 4 The mixture was treated at 80°C for 30 minutes, rinsed with double distilled water, and dried;
[0033] (4) Finally, use 8.8mol / L H 2 o 2 Treat with 0.1mol / L HCl mixed solution at 80°C for 30min, then heat-treat at 400°C for 1h. Cool naturally to obtain a surface with a bioactive porous structure (such as figure 2 shown).
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