Objective To investigate the application of self-threading pins in the preservative of teeth with large area defects.
目的：探讨自攻自断螺纹钉在大面积缺损牙保存性修复中的应用。
Objective To investigate the clinical effect of cast post and core on the restoration of large area defects of tooth.
目的探讨铸造桩核修复牙体大面积缺损的临床疗效。
Objective: To explore the feasibility of applying auricle compound tissue flap to repair unilateral and bilateral nasal alar large area defects.
目的探讨耳廓复合组织瓣修复鼻翼单、双侧较大面积缺损的可行性。
The uniformity, defects and demands on coating equipments for large area continuous coating are analysed.
讨论了大面积连续镀膜的均匀性、缺陷以及对镀膜设备的要求；
The uniformity, defects and demands on coating equipments for large area continuous coating are analysed.
讨论了大面积连续镀膜的均匀性、缺陷以及对镀膜设备的要求；
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