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目的探讨Er:YAG激光在年轻恒牙复杂冠根折病例断冠再接中的应用情况。方法选择临床上冠折至龈下达秞牙骨质界的年轻恒牙病例,用Er:YAG激光进行相应组织处理后进行活髓切断和断冠再接,观察其临床效果。结果追踪观察12月~18月,效果良好。仅一例患者在术后7月时由于咬到硬物,断冠再次折断,行再次粘接。余患者无自觉症状,牙周健康,断冠无折断,根尖周未见异常。结论 Er:YAG激光在年轻恒牙复杂冠根折再接中效果可靠,是临床上一种可推荐尝试的方法。
Objective To investigate the application of Er: YAG laser in the crown replacement of young permanent teeth. Methods The cases of young permanent teeth with clinical crown-to-subgingival aponeurosis were selected. The patients were treated with Er: YAG laser for pulpotomy and severed crown again. The clinical effect was observed. The results of follow-up observation from December to 18, the effect is good. Only one patient was severed again due to a hard object bite in July after surgery, and the adhesive was reattached. I patients without symptoms, periodontal health, no broken off, no abnormal apical week. Conclusions Er: YAG laser is reliable in the reconnection of complex crown root fracture of young permanent teeth. It is a clinically recommendable method.