目的：研究单根的下颌第二磨牙的根管形态。
Objective: to investigate the root canal anatomy of one-rooted mandibular second molars.
方法：对单根的肋软骨炎，在压痛最明显处直接切除受累的肋软骨；
METHODS: For those with chondritis of a single rib, the involved costal cartilage was directly cut from the obvious pressure pain spot.
油管连接部位的一种类型。这时整个油管单根的内表面和外表面的直径都是相同的。
A type of tubing connection in which the internal or external surfaces are the same diameter throughout the tubing joint.
应用推荐