作者1987～1989年为50例患者制作了种植义齿,年龄11～65岁。上颌切牙30例,尖牙15例,前磨牙5例。因牙齿不能保存而拔牙,立即把用钛合金制成的十字形种植体植入牙槽窝内,种植体长10,12或14mm,宽3mm,有3个直径0.5mm的固位孔,突出部有螺纹;在蒸馏水内煮沸1小时,180℃高压灭菌45分钟。局麻下拔牙,先用碘仿纱条填塞拔牙窝,在唇侧作梯形切口 The authors made implant dentures for 50 patients from 1987 to 1989, aged 11-65 years. 30 cases of maxillary incisors, canine in 15 cases, premolar in 5 cases. Tooth extraction can not be saved because of teeth, and immediately made of titanium alloy cross-shaped implants into the alveolar socket, implant length 10,12 or 14mm, width 3mm, with three 0.5mm diameter retention hole, prominent Ministry of thread; boiled in distilled water for 1 hour, autoclaved 180 ℃ for 45 minutes. Tooth extraction under local anesthesia, first filled with iodoform gauze extraction tooth socket, trapezoidal incision on the lip side