A3型题 患者男性35岁,I滞留。X线片示3横位埋伏于l24处并与其影像重叠。术中表现埋伏牙根根长,且牙冠紧卡在两根之间,挺无松动,这时最佳选择是
A
继续扩大骨窗 B
<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12259055_0_2.gif">冠周增隙 C
平凿劈开<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230804/12259055_0_3.gif">牙冠 D
涡轮钻分开牙冠与牙根 E
关闭创口停止手术