Ceramic abutment for dental implant and manufacturing method for ceramic abutment
A manufacturing method and technology of porcelain abutments, applied in the fields of implantology, medical science, dentistry, etc., can solve problems such as difficulty in adapting to individual requirements of patients, inability to use prefabricated abutments, complex manufacturing process, etc., to eliminate structural defects, Realize the effect of simple design and production process
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Example Embodiment
[0028] Example 1
[0029] The basic structure of the porcelain abutment for oral implantation of this embodiment is as follows figure 1 As shown, it includes a base 1 with a countersunk through hole. The countersunk through hole is equipped with a central countersunk screw 5 with an external thread that matches the threaded hole of the implant 6 in the jaw; the lower end of the base 1 has an embedded implant The reduced diameter adapter 4 in the body 6 has an outwardly extending edge in the middle; the upper outer circle of the base 1 is covered with a metal bottom layer 2, and the bottom end of the metal bottom layer 2 extends along the upper surface of the edge, and the metal bottom layer 2 A cast porcelain layer 3 is coated on the outside, and a color-shielding porcelain is also provided between the metal bottom layer 2 and the cast porcelain layer 3; the shape of the cast porcelain layer 3 matches the concave hole at the bottom of the porcelain crown 7. The cast porcelain lay...
Example Embodiment
[0042] Example 2
[0043] Make wax molds and sprues that match the shape of the metal bottom on the universal castable abutment, and fix them in the casting ring, pour the embedding material mixture into the casting ring, and let it stand at room temperature for 30 minutes, and the mixture solidifies The embedded body is baked at a temperature of 880℃ for 40 minutes, the wax mold is melted and the wax liquid is poured out, the baked embedded body is sent to the casting machine, and the gold alloy is poured into the casting. The condition is 1280 Cast for 30 seconds at 400 revolutions / min at a temperature of ℃, cool and remove the embedding material to obtain a base coated with the metal bottom layer; the metal bottom layer is pretreated by: sandblasting with aluminum oxide with a diameter of 120 μm under a pressure of 2.5 Pa 3s, vacuum oxidation at 930℃ for 5min, after oxidation, put it into Arurocid solution (0.17g / ml) produced by German Bego company for acid etching for 15min; ...
Example Embodiment
[0044] Example 3
[0045] Make a metal bottom wax mold on a universal castable base, fix the base in the casting ring, pour the embedding material mixture into the casting ring, let it stand for 30 minutes at room temperature, and the mixture solidifies into an embedded body; The embedded body is roasted in a self-controlled high-temperature roasting furnace at a temperature of 920°C for 55 minutes. The wax mold is melted and the wax liquid is poured out. The roasted embedded body is sent to the casting machine, and the gold alloy is poured into the casting. The condition is 1320°C. Casting for 30 seconds at 400 revolutions / min, cooling and removing the embedding material to obtain a base covering the metal bottom layer; pretreatment of the metal bottom layer is as follows: blasting with aluminum oxide with a diameter of 120 μm under 3Pa pressure for 3 seconds, 970℃ Vacuum oxidize at temperature for 5 minutes. After oxidation, put it into Arurocid solution (0.17g / ml) produced by ...
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