Denis三柱理论中,后柱不包括()
A.后纵韧带
B.棘间韧带
C.横突
D.椎板
E.黄韧带
参考答案:A
Mr. Chapman retired at 70 after he nearly 40 years with the Gas Company.
A.had spent
B.has spent
C.spends
D.would spend
患者男性,74岁,缺失,下颌缺牙区牙槽嵴吸收严重,拟行可摘局部义齿修复
对于这种游离端缺牙,近缺隙的末端基牙一般采用()
A.三臂卡环
B.单臂卡环
C.对半卡环
D.下返卡环
E.RPI卡环