Efficacy of a Modified Lip Repositioning Surgery Technique With Tie Levator Labii Superioris and Without Frenectomy and Myotomy for Treatment of Excessive Gingival Display: A Retrospective Study

NCT06944535 | Completed DMC

• 1 other identifier: Le Nguyen Lam
• Study Type: observational
• Target: 32
• Locations: 1 country
• Sites: 1

Brief Summary

This retrospective study aims to evaluate the effectiveness and safety of a modified lip repositioning surgery technique, performed without frenectomy and without myotomy, for the correction of excessive gingival display ("gummy smile"). Data were collected from the medical records and clinical photographs of patients who had previously undergone this surgical procedure at the study site.

Conditions

Excessive Gingival Display

Keywords

Excessive gingival display; gummy smile; ip repositioning surgery

Outcome Measures

Primary Outcomes (1)

• Reduction in gingival display after modified lip repositioning surgery

  Measurement of gingival display (in millimeters) on smile, comparing baseline (before surgery) and last available follow-up (after surgery), based on clinical photographs and medical records.

  Baseline and up to 12 months post-surgery

Study Arms (1)

Modified Lip Repositioning Surgery (Retrospective Cohort)

This cohort includes patients who had previously undergone the modified lip repositioning surgery technique without frenectomy and without myotomy. Data were obtained retrospectively from medical records and clinical photographs. No prospective intervention was performed.

Procedure: Modified Lip Repositioning Surgery (Retrospective)

Interventions

Modified Lip Repositioning Surgery (Retrospective) PROCEDURE

Patients previously underwent a modified lip repositioning surgery technique without frenectomy and without myotomy. For this retrospective study, only existing medical records and clinical photographs were reviewed. No new surgical intervention was performed.

Modified Lip Repositioning Surgery (Retrospective Cohort)

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Patients who had previously undergone modified lip repositioning surgery without frenectomy and without myotomy for the correction of excessive gingival display. Data were collected retrospectively from medical records and clinical photographs of eligible patients treated at the study site during the defined study period. Only patients with complete documentation before and after surgery were included.

You may qualify if:

• Patients treated with the modified lip repositioning surgery without frenectomy and without myotomy.
• Complete medical records including pre- and post-operative documentation.
• Clinical photographs available before and after surgery.
• Minimum follow-up period documented (≥ 3 months).

You may not qualify if:

• The patient has trauma and facial deformities
• Incomplete medical records or missing photographs.
• Patients lost to follow-up before minimum period.
• Patients who had undergone other concurrent surgical/orthodontic procedures affecting gingival display.

Sponsors & Collaborators

• Can Tho University of Medicine and Pharmacy: lead

Study Sites (1)

Can Tho University of Medicine and Pharmacy

Can Tho, 900000, Vietnam

Location

Related Publications (1)

• Tawfik OK, El-Nahass HE, Shipman P, Looney SW, Cutler CW, Brunner M. Lip repositioning for the treatment of excess gingival display: A systematic review. J Esthet Restor Dent. 2018 Mar;30(2):101-112. doi: 10.1111/jerd.12352. Epub 2017 Nov 27.

  PMID: 29193632 RESULT

MeSH Terms

Interventions

Retrospective Studies

Intervention Hierarchy (Ancestors)

Case-Control Studies; Epidemiologic Studies; Epidemiologic Study Characteristics; Epidemiologic Methods; Investigative Techniques; Cohort Studies; Health Care Evaluation Mechanisms; Quality of Health Care; Health Care Quality, Access, and Evaluation; Public Health; Environment and Public Health

Study Officials

• Lam N Le, PhD

  Can Tho University of Medicine and Pharmacy

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: April 7, 2025
• First Posted: April 25, 2025
• Study Start: September 12, 2023
• Primary Completion: September 12, 2024
• Study Completion: September 20, 2024
• Last Updated: September 19, 2025

Record last verified: 2023-09

Data Sharing

• IPD Sharing: Will not share

Locations

VN (1)