Güneş Betül, Aydinbelge Hale Ari
University of Selcuk, Faculty of Dentistry, Department of Endodontics, Selcuklu-Konya, Turkey.
J Conserv Dent. 2012 Jan;15(1):73-6. doi: 10.4103/0972-0707.92611.
Treatment of nonvital immature permanent teeth with calcium-hydroxide is associated with some difficulties such as weakened tooth fracture, root canal reinfection and long treatment time. Mineral trioxide aggregate (MTA) apical plug method is an alternative treatment option for open apices, and has gained popularity in the recent times. In this case report, we have attempted to present successful treatment of three maxillary incisors with open apices and periapical lesions with MTA. After preparing the access cavity, the working length was determined. The root canals were irrigated with 2.5% Sodium hypochlorite (NaOCl) and disinfected with calcium-hydroxide for two weeks. MTA was then placed in the apical 3 millimeters of the root canal. The remaining part of the root canal was filled with gutta-percha and the coronal restoration was finished with composite resin. After six months the radiographic examination showed a decrease of periapical lesions. At a 1-year and 18-months follow up, radiological and clinical successful healing of the incisor teeth was seen. MTA seems as an effective material for the apical plug method for the treatment of nonvital immature permanent teeth with open apices.
用氢氧化钙治疗非活髓未成熟恒牙存在一些困难，如牙齿骨折风险增加、根管再感染以及治疗时间长等。三氧化矿物凝聚体（MTA）根尖充填法是治疗根尖开放的一种替代治疗选择，近年来已受到广泛关注。在本病例报告中，我们尝试介绍使用MTA成功治疗3颗上颌切牙根尖开放伴根尖周病变的情况。制备开髓洞形后，确定工作长度。根管先用2.5%次氯酸钠（NaOCl）冲洗，再用氢氧化钙消毒两周。然后将MTA置于根管根尖3毫米处。根管其余部分用牙胶充填，冠部用复合树脂修复。6个月后影像学检查显示根尖周病变减小。在1年和18个月的随访中，观察到切牙在影像学和临床上均成功愈合。MTA似乎是用于根尖开放的非活髓未成熟恒牙根尖充填法的一种有效材料。
