Faculty of Dental Medicine, University of Monastir, Monastir, Tunisia.
Dental Clinic of Monastir, Department of Medicine and Oral Surgery, Oral Health and Oro-Facial Rehabilitation Laboratory Research (LR12ES11), 5019, Monastir, Tunisia.
Pan Afr Med J. 2020 Jul 30;36:235. doi: 10.11604/pamj.2020.36.235.22597. eCollection 2020.
Improvement of smile esthetics is a major goal of modern dentistry. Various treatment modalities have been proposed to correct excessive gingival display, depending on intraoral or extraoral etiologies. This report aimed to document the use of mucosal coronally positioned flap called surgical lip repositioning technique for the management of a gummy smile associated with vertical maxillary excess. The procedure restricts the muscle pull of the elevator lip muscles by shortening the vestibule, thus reducing the gingival display when smiling. Rapid surgical healing with minimal postoperative sequelae was observed. The follow up examinations showed esthetic satisfaction up to 6 months postoperatively, at the end of one year a partial relapse was observed. Although the short-term stable results of lip repositioning surgery appear satisfying postoperatively, its utility as a long-term treatment option remains questionable. More studies with larger sample size and long-term follow-up are necessary to establish the level of scientific evidence of this procedure.
改善微笑美观是现代牙科的主要目标。根据口腔内或口腔外的病因，已经提出了各种治疗方法来纠正过度的牙龈显露。本报告旨在记录黏膜冠向瓣（称为手术唇复位技术）在治疗与上颌垂直过度相关的露龈笑中的应用。该手术通过缩短前庭来限制提上唇肌的肌肉拉力，从而减少微笑时的牙龈显露。观察到快速的手术愈合和最小的术后后遗症。随访检查显示，术后 6 个月达到美学满意度，1 年后观察到部分复发。尽管唇复位手术的短期稳定效果术后令人满意，但作为长期治疗选择的效用仍存在疑问。需要进行更多具有更大样本量和长期随访的研究，以确定该手术的科学证据水平。
