患儿男,10岁。龋深,腐质未去净时露髓应选用()。
A.直接盖髓术
B.活髓切断术
C.牙髓摘除术
D.根管治疗术
E.干髓术
参考答案:C
The child had only _____ slight temperature,but the doctor regarded the illness as serious enough for ____ hospital treatment.
A./; the
B./; /
C.a; /
D.a; the
以下说法哪一种对()
A.塑料牙质轻,咀嚼效能最高
B.瓷牙耐磨,但咀嚼效能低
C.瓷牙和塑料基托结合好,但易崩裂
D.塑料牙调方便
E.塑料牙能保持垂直距离