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Lip repositioning with or without myotomy: a systematic review.
Mohammadreza Talebi Ardakani1, Anahita Moscowchi1, Nasrin Keshavarz Valian1
1Department of Periodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Journal of the Korean Association of Oral and Maxillofacial Surgeons
|February 26, 2021
Summary
Lip repositioning surgery can successfully treat excessive gingival display in select patients. However, more research is needed to confirm its long-term stability compared to other cosmetic dental procedures.
Area of Science:
- Oral and Maxillofacial Surgery
- Periodontology
- Cosmetic Dentistry
Background:
- Excessive gingival display, often called a "gummy smile," is a common esthetic concern.
- Various surgical techniques exist to manage gummy smiles.
- Lip repositioning is one such procedure gaining attention.
Purpose of the Study:
- To review the existing scientific evidence on the outcomes and long-term stability of lip repositioning surgery.
- To evaluate lip repositioning with or without myotomy (muscle cutting).
Main Methods:
- A comprehensive electronic search was performed in MEDLINE, Embase, and the Cochrane Library up to October 2019.
- Manual searches of reference lists were also conducted.
- Sixteen studies involving 144 patients (15-59 years old) were included for data extraction.
Main Results:
- Lip repositioning, particularly with myotomy or muscle containment, shows promise as a successful treatment for minor gummy smile discrepancies in carefully selected individuals.
- The procedure was assessed in 144 patients, predominantly females.
Conclusions:
- Lip repositioning with myotomy/muscle containment appears effective for specific cases of excessive gingival display.
- Further high-quality, controlled clinical trials are essential to definitively establish long-term stability and compare it with alternative treatments.
