T S Oliveira Caroline, M A de Carvalho Fredson, C O Gonçalves Leonardo, M N de Souza Jessyca, F R Garcia Lucas, A F Marques André, N de Souza Samir
Amazon Institute of Higher Education.
Superior School of Health Sciences, State University of Amazonas.
Bull Tokyo Dent Coll. 2018;59(1):35-41. doi: 10.2209/tdcpublication.2017-0002.
The axial displacement of a tooth within the alveolar bone is called traumatic intrusive luxation. The treatment of immature permanent teeth with incomplete root formation is a challenging procedure, as the prognosis is uncertain. The objective of the present article is to report the successful treatment of traumatic intrusive luxation in teeth with incomplete root formation, where mineral trioxide aggregate (MTA) was used as an apical plug to induce apexification. A 10-year-old boy was referred to our department for emergency treatment of dentoalveolar trauma to the maxillary central incisors. After clinical and radiographic examination, the teeth were surgically repositioned and rigidly fixed. Three months later, a pulp vitality test of both teeth elicited a negative response. Endodontic therapy with an MTA plug was used to induce apexification as root formation was incomplete. The root canals were then filled. Clinical and radiographic examination was then performed again at 2 and 4 months later. The MTA apical plug was effective in inducing apexification and maintaining both teeth.
牙齿在牙槽骨内的轴向移位称为创伤性嵌入性脱位。对于牙根发育不全的年轻恒牙，其治疗是一个具有挑战性的过程，因为预后不确定。本文的目的是报告使用矿物三氧化物凝聚体（MTA）作为根尖屏障诱导根尖形成术成功治疗牙根发育不全的牙齿创伤性嵌入性脱位的病例。一名10岁男孩因上颌中切牙牙牙槽创伤被转诊至我科进行急诊治疗。经过临床和影像学检查后，对牙齿进行了外科复位并牢固固定。三个月后，两颗牙齿的牙髓活力测试均呈阴性反应。由于牙根发育不全，采用MTA屏障进行根管治疗以诱导根尖形成术。然后对根管进行充填。在2个月和4个月后再次进行临床和影像学检查。MTA根尖屏障有效地诱导了根尖形成并保留了两颗牙齿。
