桩冠修复需经两次完成,也曾有过一次桩冠法的报道,多数是患牙预备后选择成品桩钉,唇面用成品塑料牙面,舌侧部分用自凝塑料直接在口内捏塑成形完成。因其操作困难,舌侧部分自凝塑料硬度低,成品牙面和自凝塑料易分离等原因,影响临床的推广和应用。现介绍用金属模具生产的塑料预成冠在前牙桩冠一次法修复中的应用。 Post crown repair needs to be completed twice, there have been reports of a pile crown method, the majority of the choice of finished teeth after the preparation of the pile teeth, lip plastic surface of the finished product with the tongue part of the self-curing plastic directly in the mouth pinch Plastic molding is completed. Because of its operational difficulties, the lingual part of the self-curing plastic hardness is low, the finished tooth surface and self-curing plastic easy to separate and other reasons, affecting the clinical promotion and application. Now introduced the use of plastic mold crown preform crowns in the first method of repair.