1. Use of mucogingival surgical procedures to enhance esthetics;Allen;Dent Clin North Am,1988
2. Excessive gingival display—etiology, diagnosis, and treatment modalities;Silberberg;Quintessence Int,2009
3. Intrusion of anterior teeth to improve smile esthetics;Chandrasekharan;J Maxillofac Oral Surg,2010
4. Gummy smile: orthodontic or surgical treatment;Izraelewicz-Djebali;Journal of Dentofacial Anomalies and Orthodontics,2015
5. Upper lip length after V–Y versus continuous closure for Le Fort I level maxillary osteotomy;Talebzadeh;Oral Surg Oral Med Oral Pathol Oral Radiol Endod,2000