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后牙永久性充填材料银汞合金目前较紧缺,且有汞害。复合树脂耐磨性能又差。1987年我们采用空军临潼疗养院预作的成品陶瓷嵌体修复后牙,成功率97％。临床操作:1.当窝洞预备后再根据洞形选择形态和大小适合的嵌体,不完全合适时用金刚石砂轮修整,冲洗,空气吹干(不需用酸蚀)。2.用磷酸酸蚀,75％酒精消毒窝洞并吹干,调适量复合树脂填入窝洞内,随即将瓷嵌体压入窝洞内,再用单体棉球擦去多余树脂,待结固后用金刚石砂轮修整外形,调改咬(牙合)并同时修整(牙合)面形态。
Permanent dental filling material Silver amalgam is currently scarce, and mercury damage. Composite resin wear resistance and poor. In 1987, we adopted the finished ceramic inlay prefabricated by the Air Force Lintong Sanatorium to repair the posterior teeth, with a success rate of 97%. Clinical Operation: 1.When the cavity is prepared, the shape and size of the inlay are selected according to the shape of the hole, and the diamond grinding wheel is not completely suitable for dressing, rinsing and air drying (no acid etching is required). 2. acidified with phosphoric acid, 75% alcohol disinfection nest cavity and dry, adjust the amount of composite resin filled into the nest hole, then press the porcelain inlay into the nest cavity, and then use a single cotton ball to wipe excess resin until After the junction with diamond grinding wheel dressing shape, adjust bite (occlusal) and at the same time trimming (occlusal) surface morphology.