A.Ca(OH)2 B.MTA C.EDTA D.3%H2O2+0.9%NaOH E.0.5%~5.25%NaClO+3%H2O2
A.0.2mm B.0.5mm C.0.8mm D.1.2mm E.1.5mm
A.牙齦炎癥重 B.口腔衛(wèi)生差,牙石多 C.牙齒松動和移位 D.牙槽骨致密 E.好發(fā)牙位為第二磨牙