Comprehensive Surgery in Correction of Excessive Maxilla with Gummy Smile and Chin Deficiency: A Case Report

正顎手術矯正上顎過多與笑齦及下頷後縮－病例報告

江天恩(Tien-En Chiang) ； 劉家旗(Chia-Chi Liu) ； 張維晉(Wei-Chin Chang) ； 黃鴻麒(Hung-Chi Huang) ； 李宇璿(Yu-Hsuan Li) ； 陳元武(Yuan-Wu Chen)

《中華民國家庭牙醫學雜誌》 12卷1期 (2017/06) Pp. 32-39

https://doi.org/10.6566/JFD/2017.12(1).32

摘要

Gummy smile is a common term for excessive gingiva display in which an excessive gingival-to-lip distance of more than 4 mm is classified as unattractive. This condition can be caused by various contributing factors. Despite many efforts to achieve correction in a less-invasive manner, orthognathic surgery is the method with a complex design to use in correcting dentofacial deformities such as maxillary and mandibular prognathisms, abnormal bite relations, temporomandibular joint disorder and receding chins. Combining orthodontic treatment and orthognathic surgery is still the preferred approach to achieve stable occlusion and esthetic outcome with long-term stability, and the design of various surgical techniques is a great challenge to oral and maxillofacial surgeons.

關鍵字

gummy smile ； orthognathic surgery

並列摘要

笑齦又稱為過度牙齦展露，其發生可歸咎於許多因素之影響，過度牙齦展露大於4毫米於唇齦距離被歸類為不美觀。儘管許多微創術式已被發展用於治療此臨床表現，但就長遠成效綜觀，外科性正顎手術仍為治療骨性成因的標準治療方法，其高技術性門檻仍然具有極大臨床挑戰難度。

並列關鍵字

笑齦 ； 正顎手術