单项选择题
A.颞肌和翼内肌 B.口轮匝肌和上、下唇方肌 C.舌肌 D.翼外肌 E.二腹肌
新生儿下颌角为()A.100°~120°B.120°~125°C.130°~140°D.140°~160°E....
单项选择题新生儿下颌角为()
A.100°~120° B.120°~125° C.130°~140° D.140°~160° E.150°~170°
恒牙列期下颌角为()A.100°~120°B.120°~125°C.130°~140°D.140°~160°E...
单项选择题恒牙列期下颌角为()
乳牙建完成时下颌角为()A.100°~120°B.120°~125°C.130°~140°D.140°~160...
单项选择题乳牙建完成时下颌角为()