molar teeth的用法和样例：
例句
- The child grinds his teeth in his sleep.
这孩子在睡眠中磨牙。 - Most of the lesion are on the molar region, body and ascending ramus.
下颔骨的好发部位则依序为臼齿区域，下颔体部及枝部。 - One of my lower back teeth is killing me.
我的一个后牙正在痛。 - The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.
扭转牙的复发是正畸临床治疗后牙稳定性的难题之一。
