摘要目的 评价三氧化矿物凝聚体(mineral trioxide aggregate,MTA)修补根管医源性穿孔的临床效果.方法 选取根管医源性穿孔病例21例,预备根管、彻底清理穿孔区,根管显微镜下以MTA修补根管穿孔,完成充填.定期回访,收集患者术前、修补后即刻和术后复查的X线片,根据临床检查和X线片检查评价结果.结果 复诊时21例中除2例为有效(存在密度减低影但较术前明显缩小)外,其余19例均为愈合(无密度减低影),无失败病例.结论 MTA治疗医源性穿孔的临床疗效较好.

abstractsObjective To observe the clinical effect of iatrogenic perforation repaired by mineral trioxide aggregate(MTA). Methods Twenty-one iatrogenic perforation cases were included. The root canals were shaped and cleaned and then obturated after MTA was used to repair the perforation with microscopes.Preoperative, immediate postoperative, and follow-up radiographs were evaluated to determine the pathologic changes adjacent to the perforation site. Results Nineteen cases healed and two cases were healing. No cases failed. Conclusions MTA is effective in the treatment of iatrogenic perforation.