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Gingival Depigmentation With Diode and Er,Cr:YSGG Laser: A Split-mouth Trial

NCT07520266 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 38

Last updated 2026-04-14

No results posted yet for this study

Summary

Gingival hyperpigmentation is a common physiological condition caused by excessive melanin deposition in oral mucosa, negatively affecting smile esthetics. Laser therapy has become an effective treatment option due to advantages such as minimal bleeding, reduced postoperative discomfort, and faster healing.

This clinical study aims to evaluate clinical characteristics of gingival pigmentation and compare treatment outcomes between diode laser and Er,Cr:YSGG laser techniques. Outcomes include pigmentation reduction, postoperative pain, wound healing, bleeding, patient satisfaction, and recurrence rate.

Conditions

  • Gingival Hyperpigmentation

Interventions

DEVICE

Er,Cr:YSGG laser

The group Er,Cr:YSGG (2780 nm) has a wavelength of 2780 nm, a pulse duration of 140-150 microseconds, a power output of 2.5W, a steam content of 11%, and a water content of 30%.

OTHER

Diode laser

The Group Laser Diode (940 nm) has a wavelength of 940 to 10 nm, a pulse length of 15 microseconds, and a power output of 2.5 W. Activate the fiber laser head by touching the tip to the colored paper.

Sponsors & Collaborators

  • Can Tho University of Medicine and Pharmacy

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2023-03-01
Primary Completion
2024-05-01
Completion
2025-05-01

Countries

  • Vietnam

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07520266 on ClinicalTrials.gov