A comparative evaluation of post-operative pain and function after gingival depigmentation using 940 nm diode laser and conventional bur method : 6 months study

Abstract EN

The aim of the study was to evaluate the efficacy of diode laser (λ=940 nm) in the management of gingival hyperpigmentation compared to the conventional bur method.

Materials and methods: Eighteen patients with gingival hyperpigmentation were selected for the study with an age between 12-37 years old.

The site of treatment was the upper gingiva using diode laser for the right half and the conventional method for the left half.

All patients were re-evaluated after the following intervals: 3 days, 7 days, 1 month and 6 months post-operation.

Pain and functions were re-evaluated in each visit for a period of 1 day, 3 days and 1 week post-operation.

Laser parameters included 1.5 W in continuous mode with an initiated tip (400 μm) placed in contact with tissues and Power density (irradiance) was 1250 W/cm2.

Results: A significant difference was observed in post-operation pain and functions between the groups (Level of significance as: Not significant P>0.05 and Significant P<0.05, highly significant P<0.01).

Conclusions: Diode laser is considered an effective treatment in the management of gingival hyperpigmentation compared to the conventional bur method.