阻生彎曲牙以根向移位翻瓣術露出合併矯正牽引治療：病例報告

Surgical Exposure Using Apically Positioned Flap Combined with Orthodontic Traction of an Impacted Dilacerated Incisor-A Case Report

劉佳觀(Jia-Kuang Liu) ； 曾春祺(Chuen -Chyi Tseng)

《中華民國牙周病醫學會雜誌》 3卷2期 (1998/06) Pp. 71-76

摘要

上顎正中門齒彎曲牙會造成該牙阻生、鄰牙傾斜、中線偏移以及空間不足等問題，若阻生彎曲牙的牙根彎曲度不超過87.8度，且牙冠軸傾斜度在180至60度之間，則可合併手術露出及矯正牽引治療而不需拔除；手術露出時，必須選用以後有足夠的附連牙齦寬度的方法，以使日後容易維護牙周的健康。本報告提出一例左上顎正中門齒阻生彎曲牙以根向移位翻瓣術露出，及矯正牽引治療成功並且擁有充足的附連牙齦之病例報告以供參考。

關鍵字

彎曲牙 ； 阻生牙 ； 附連牙齦 ； 手術露出 ； 矯正牽引

並列摘要

An impacted dilacerated incisor will result in tilting of the neighboring teeth, midline deviation, and space deficiency in the dental arch. If the dilaceration of root is below 87.8°, and the inclination of the impacted tooth crown axis is between 180° to-60°, surgical exposure followed by orthodontic traction is recommended to treat the impacted tooth. For maintaining good periodontal health, we can not exposure the cementoenamel junction of the impacted tooth when doing the surgical procedure. For preserving adequate attached gingiva, surgical window technique for labially impacted teeth is not use. This case report describes the successful treatment of an impacted dilacerated incisor using surgical exposure using apically positioned flap and orthodontic traction. The tooth with adequate attached gingiva reveals good periodontal health after two-year follow-up.

並列關鍵字

Dilaceration ； Impaction ； Attached gingiva ； Surgical exposure ； Orthodontic traction