A 去除坏死组织并刮除大块牙石 B
3%H<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12256518_0.gif">O<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230104/12256518_0_1.gif">冲洗坏死区 C
重症者,首选口服四环素,控制病情 D
支持疗法 E
最好更换牙刷