A.基牙松動(dòng)B.游離缺失C.咬合過緊D.基牙傾斜E.牙槽嵴過低
A.牙頸部B.根頸1/3C.根分叉處D.根中1/3E.根尖1/3
A.76543 B.67345 C.67453 D.76345 E.67543