| 摘要 |
A method for manufacturing a female screw for dental artificial teeth is provided, which enables to precisely manufacture a female screw formed in an implant. A method for manufacturing a female screw for dental artificial teeth is as follows. The ceramic powder is compression-molded by pressing. The molded product is sintered at 1,400~1,500°C. The surface of the sintered ceramic rod is polished. A casting bolt(80) is manufactured by forming a thread in the circumference of the ceramic rod. By using the master model reproducing the oral cavity inside of a patient, the fire-retardant model is reproduced. The casting bolt is arranged to the location where the female screw is formed in the fire-retardant model. An implant is sculpted using wax. A sprue is formed on one side of the implant. The implant is cast by injecting the implant molten metal through the sprue. A female screw is manufactured by removing the bolt from the implant using hydrogen fluoride.
|
