Cetinbas Tugba, Halil Suleyman, Akcam Mehmet Okan, Sari Saziye, Cetiner Serap
Department of Pedodontics, Faculty of Dentistry, Ankara University, Ankara, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 Oct;104(4):e120-4. doi: 10.1016/j.tripleo.2007.03.029. Epub 2007 Jul 25.
Fusion is a developmental anomaly which occurs due to a union of 1 or more adjacent teeth during morphodifferentiation of the dental germs. The present case report presents the hemisection of a maxillary central incisor fused with a supernumerary tooth. A 10-year-old boy was referred to clinic with the chief complaint of the presence of a large anterior tooth. Intraoral and radiographic investigations indicated fusion between the left central incisor and a supernumerary tooth. The fused tooth was separated with a diamond bur, and the supernumerary tooth was extracted. The left central incisor was restored with composite resin and the diastema between the maxillary central incisors was closed with orthodontic treatment. The left central incisor was still healthy after a follow-up examination period of 24 months. An ideal overjet and overbite relation was achieved at the end of the orthodontic treatment. Hemisection can be considered as an appropriate treatment alternative for a permanent tooth fused with a supernumerary tooth.
融合是一种发育异常，它是由于牙胚形态分化期间一个或多个相邻牙齿联合而发生的。本病例报告展示了一颗上颌中切牙与一颗多生牙融合的半切术。一名10岁男孩因主诉有一颗大的前牙而被转诊至诊所。口腔内和影像学检查表明左中切牙与一颗多生牙之间存在融合。用金刚砂车针将融合牙分开，并拔除多生牙。用复合树脂修复左中切牙，并用正畸治疗关闭上颌中切牙之间的间隙。经过24个月的随访检查期，左中切牙仍然健康。正畸治疗结束时实现了理想的覆盖和覆合关系。半切术可被视为治疗与多生牙融合的恒牙的一种合适的治疗选择。
