颌下腺、下颌下淋巴结位于()
A.咽后隙
B.颈鞘
C.颌下隙
D.舌下隙
E.咽旁隙
参考答案:C
Had I run out of gas, I ought to have called the garage.
A.had
B.would have
C.would
D.should have
患者,女,15岁,恒牙,磨牙中性关系,上下牙弓Ⅱ度拥挤,口腔卫生差,牙石++,低角,深覆Ⅱ°,深覆盖Ⅱ°。
对此病人可以配合使用()
A.上颌斜面导板
B.上颌平面导板
C.下颌联冠式斜面导板
D.下颌平面导板
E.舌习惯矫治器