A3型题 患者男性,27岁,要求固定修复。检查:缺失,缺隙较大;不松,叩(-);松动I度,叩(-);余牙无异常。若设计双端固定桥修复,此时应重点考虑
A
增加桥体的机械强度 B
增加桥体的牙尖高度 C
增选<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12270198_0_5.gif">和<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12270198_0_6.gif">联合做基牙 D
<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12270198_0_7.gif">选用固位力较弱的固位体 E
增加桥体的颊舌径