Development of Labial Fenestration Following Overfilling of Root Canal in a Mandibular Central Incisor: A Case Report

下顎正中門牙根管過度充填引發唇側黏膜開窗：病例報告

朱毓仁(Yuh-Ren Ju) ； 黃娟娟(Chuan-Chuan Huang) ； 蔡欣宜(Alice Hsin-Yi Tsai) ； 陳朝寶(Chiu-Po Chan) ； 潘惠玲(Whei-Lin Pan)

《中華民國牙周病醫學會雜誌》 7卷4期 (2002/12) Pp. 241-246

摘要

根尖黏膜開窗現象臨床上十分罕見。本文敘述一35歲中年女性下顎右正中門牙於傳統根管治療中由於根管過度充填造成唇側黏膜開窗，牙根尖暴露於口腔中。利用側方蒂狀瓣，經徹底根管發炎組織刮除及牙根重塑，術後九年追蹤，黏膜復原情況良好。根管過度充填造成黏膜開窗，尚無文獻報告。本文討論其可能病因及手術方法，提供臨床上治療之參考。

關鍵字

黏膜開窗 ； 過度充填 ； 下顎 ； 正門牙 ； 側置蒂狀瓣

並列摘要

A case of labial fenestration in a mandibular right central incisor is described. The patient was a 35-year-old female seeking regular dental examination. Following conventional endodontic therapy, a labial fenestration appeared at the tooth apex due to overfilling of root canal. A pedicle flap was utilized to successfully repair the mucosal/bony defect after thorough periapical curettage and apicoectomy of the root apex. Nine years postoperatively, the mucosa has remained covered, and there was radiographic evidence of bone infilling in the periapical region. This cause of labial fenestration is very rare. The case report discusses its possible pathogenesis and treatment procedures to provide clinicians an alternative method of treatment.

並列關鍵字

Mucosal fenestration ； Overfilling ； Mandible ； Central incisor ； Laterally positioned pedicle flap