唇側翻瓣手術拔除贅生齒的病例報告

Labially Positioned Mesiodens: A Case Report

沈明萱(Ming-Hsuan Sheen) ； 蕭思郁(Szu-Yu Hsiao)

《臺灣兒童牙醫學雜誌》 13卷2期 (2013/12) Pp. 40-44

https://doi.org/10.6319/TJPD.2013.13(2).4

摘要

贅生齒（supernumerary teeth）好發於上顎，在恆牙齒列的發生率高於乳牙齒列。臨床上最常見於上顎門牙，一般將位於此者統稱為正中贅齒（mesiodens）。通常是因為孩童恆門牙延遲萌發或排列不整齊前來求診，執行放射學檢查而發現。正中贅齒常見於上顎的中線區域，且大多數位於恆牙的顎側。本報告是一個位於恆門牙根尖且靠近唇側面之贅生齒，並藉由唇側翻瓣手術拔除的病例。並統計兩年高醫附設醫院兒童牙科門診正中贅齒病例，發現位於恆門齒根尖者約占10%，而手術介入拔除的時機為混合齒列時期及相鄰恆門齒牙根發育達2/3以上時。

關鍵字

贅生齒 ； 唇側 ； 正中贅齒

並列摘要

Supernumerary teeth are more common in the maxilla and in the permanent dentition. The most common type is mesiodens, which refers to supernumerary teeth located between maxillary central incisors. Mesiodens is usually discovered during routine radiographic exam for malalignment or unerupted upper incisors. The case presented is a 9-year-10-month old male with a mesiodens located at the apex of upper incisors and near the labial cortical bone. The supernumerary tooth was labially approached and removed by flap surgery. The timings of surgical intervention for mesiodens are discussed.

並列關鍵字

supernumerary teeth ； labial ； mesiodens