用光固化树脂直接充填修复的牙齿约30颗，成功率为73％。
The other cases, 30 teeth, were filled with light cured composite resin. The success rate of this group was 73%.
检视直接复合树脂充填与汞齐充填恒久后牙的效果，主要针对修复术失败。
To examine the effects of direct composite resin fillings versus amalgam fillings for permanent posterior teeth, primarily on restoration failure.
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