牙体显微分层修补术治疗上颌中切牙牙颈部外吸收1例
Layered external repair with microsurgery of maxillary central incisor with external cervical resorption
作者：戢晓, 张岚, 黄定明
Author：Ji Xiao, Zhang Lan, Huang Dingming
收稿日期：2025-01-20 年卷（期）页码：2025,43(5):736-736-741
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：牙外伤,正畸治疗,牙颈部外吸收,活髓保存,显微手术,
Key words：dental trauma,orthodontic treatment,external cervical resorption,vital pulp therapy,microsurgery,
基金项目：四川省科技计划项目(2024NSFSC0593);四川省干部保健科研课题项目(60022)
中文摘要
牙吸收是在破牙细胞持续作用下发生的牙齿硬组织破坏。牙颈部外吸收是由于牙周膜或上皮下牙骨质破坏和（或）缺陷导致的牙齿颈部吸收。本文报道1例上颌中切牙外伤及正畸后牙颈部外吸收，术前通过锥形束CT充分了解患牙吸收部位和形态，术中利用显微技术及生物陶瓷和复合树脂材料分层修补对吸收部位进行严密充填修复，实现了保存患牙和尽可能长时间保存患牙健康牙髓的目标，术后6年随访效果良好。
英文摘要
Tooth resorption is the degradation of dental hard tissue due to the continuous action of odontoclasts. External cervical resorption refers to the cervical resorption of a tooth due to destruction and/or defects of the periodontal ligament or subepithelial cementum. In this paper, we report a case of maxillary central incisor with external cervical resorption after dental trauma and orthodontic treatment. The resorption site and morphology of the affected tooth were thoroughly analyzed by cone beam computed tomography prior to the operation. Dental operating microscope and layered external repair with composite resin and bioceramics ensured a perfect restoration of the resorption, and the vital pulp was preserved. The 6-year follow-up indicated a favorable treatment effect.
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