A.上牙槽后神經(jīng)阻滯麻醉 B.腭前神經(jīng)阻滯麻醉 C.鼻腭神經(jīng)阻滯麻醉 D.下牙槽神經(jīng)阻滯麻醉 E.頰神經(jīng)阻滯麻醉
A.牙骨質(zhì) B.牙髓 C.牙根 D.牙周膜 E.牙槽骨
A.頰肌 B.口輪匝肌 C.眼輪匝肌 D.提上唇肌 E.笑肌