arch contour
英 [ɑːtʃ ˈkɒntʊə(r)]
美 [ɑːrtʃ ˈkɑːntʊr]
网络 弓形
双语例句
- Excessive mesial-axial inclination of the mandibular second molar or inadequate posterior arch length cause the mandibular second molar to become impacted against the distal contour of the first permanent molar. The patient has a radiolucent lesion below the molar teeth in the right mandible.
下颚牙弓空间不足或第二大臼齿本身过度的近心轴向倾斜，常造成第二大臼齿前倾和阻生。病人在右下颌的大臼齿，有一放射透过性的病变。