:1,13,45,169,()
A.443
B.889
C.365
D.701
1,13,45,169,() A.443B.889C.365D.701
1,13,45,169,()A.443B.889C.365D.701
男性 45岁。诉左下颌后牙出现不适6个月求治。口腔检查:[YS153_169_13.gif]残冠