测齿长尺,测齿规
Methods: Seventy extracted maxillary first premolars were used in this study. The Tooth Length, Crown Length, Root Length, Cervix Thickness, Cervix Width, Crown Thickness and Crown Width were measured with a vernier caliper.
方法:收集牙齿发育完全根尖完整的上颌第一前磨牙70颗,用游标卡尺测量每个牙的牙长、冠长、根长、颈厚、颈宽、冠厚和冠宽。
纳米英语 · 英语词汇
纳米英语 · 双语娱乐资讯