论文部分内容阅读
为了尽可能地保存患牙 ,改善、提高患牙的咀嚼效率 ,采用多根管螺纹钉根管内固位并在钉与钉之间用结扎丝制备支架修复后磨牙牙冠大面积缺损。1 资料和方法1 1 材料和设备 后牙螺纹根管钉为杭州四方医疗器械有限公司研制和生产。商品名为镀 2 4Ｋ金后牙根管桩。直径有 1 2ｍ?
In order to preserve the affected teeth as much as possible and improve the chewing efficiency of the affected teeth, root canal cannulation was performed with a plurality of pipe threads and a large area of the tooth crown was repaired with a ligature wire between the nail and the nail. 1 Materials and Methods 1 1 Materials and Equipment Screw thread root canal nail for the Quartet Hangzhou Medical Devices Co., Ltd. development and production. Trade name is plated 2 4K gold post root canal pile. Diameter of 1 2m?