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.下頜磨牙咬合平面 B.下頜磨牙咬合平面上1cm C.腮腺導管口平面 D.上頜后牙咬合平面上1cm E.上頜后牙咬合平面CT
A.要短 B.一樣長 C.長1倍 D.長2倍 E.長3倍