Forghani Maryam, Parisay Iman, Maghsoudlou Amir
Dental Research Center and Department of Endodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
Restor Dent Endod. 2013 Aug;38(3):178-81. doi: 10.5395/rde.2013.38.3.178. Epub 2013 Aug 23.
Traumatic injuries to an immature permanent tooth may result in cessation of dentin deposition and root maturation. Endodontic treatment is often complicated in premature tooth with an uncertain prognosis. This article describes successful treatment of two traumatized maxillary central incisors with complicated crown fracture three months after trauma. The radiographic examination showed immature roots in maxillary central incisors of a 9-year-old boy with a radiolucent lesion adjacent to the right central incisor. Apexogenesis was performed for the left central incisor and revascularization treatment was considered for the right one. In 18-month clinical and radiographic follow-up both teeth were asymptomatic, roots continued to develop, and periapical radiolucency of the right central incisor healed. Considering the root development of these contralateral teeth it can be concluded that revascularization is an appropriate treatment method in immature necrotic teeth.
未成熟恒牙的创伤性损伤可能导致牙本质沉积停止和牙根发育成熟受阻。对于预后不确定的早萌牙，牙髓治疗往往很复杂。本文描述了两例上颌中切牙外伤后三个月发生复杂冠折的成功治疗案例。影像学检查显示，一名9岁男孩的上颌中切牙牙根未成熟，右侧中切牙旁有一透射性病变。对左侧中切牙进行根尖诱导成形术，对右侧中切牙考虑进行牙髓血管再生治疗。在18个月的临床和影像学随访中，两颗牙齿均无症状，牙根继续发育，右侧中切牙的根尖透射区愈合。考虑到这些对侧牙齿的牙根发育情况，可以得出结论，牙髓血管再生是治疗未成熟坏死牙的一种合适方法。
