Gingival Pigmentation Management Techniques

Gingival pigmentation arises from the accumulation of melanin within the oral epithelium and is largely a benign but aesthetically concerning condition for many patients. Management strategies range from conventional surgical approaches—such as scalpel excision of the pigmented epithelium—to a variety of minimally invasive modalities. Laser ablation, employing wavelengths in the diode and erbium families, offers precise removal of pigmented cells with concurrent haemostasis and reduced postoperative discomfort. Chemical depigmentation, notably through localised injections of ascorbic acid, has emerged as a nonsurgical alternative that modulates melanocyte activity. Other techniques include cryosurgery, electrosurgery and emerging plasma-based treatments, each with distinct mechanisms of action and healing profiles. Key considerations in selecting an approach include efficacy in pigment reduction, patient acceptability, risk of repigmentation and cost–benefit balance across diverse populations.

Research from Nature Portfolio

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Research from all publishers

Recent clinical trials comparing intramucosal vitamin C injection with traditional scalpel depigmentation have demonstrated equivalent efficacy in reducing pigmentation area and intensity, with the vitamin C group reporting significantly lower pain scores on the Visual Analogue Scale. A systematic review of laser-assisted modalities has critically evaluated studies of near-infrared diode and mid-infrared erbium lasers, highlighting the need for standardised protocols but indicating promising outcomes in terms of patient comfort and repigmentation rates when compared to scalpel techniques. In a comparative investigation of three laser wavelengths (2780 nm Er,Cr:YSGG; 940 nm diode; 445 nm diode), all were found to be fast, effective and well tolerated, with excellent aesthetic outcomes and minimal relapse over two-year follow-up periods. This body of work underscores the trend towards energy-based treatments that combine precision with favourable healing kinetics.

Gingival Pigmentation Management Techniques publication trend

The graph below shows the total number of articles in gingival pigmentation management techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Melanin: A natural pigment produced by melanocytes that imparts colour to gingival tissue and can accumulate in excess, causing hyperpigmentation.

Melanocyte: A specialised cell in the basal layer of the oral epithelium responsible for melanin synthesis.

Depigmentation: A clinical procedure aimed at reducing or removing melanin pigmentation from gingival tissues.

Diode laser: A semiconductor laser emitting in the near-infrared spectrum, commonly used for soft-tissue ablation with haemostatic properties.

Visual Analogue Scale (VAS): A patient-reported measurement instrument for quantifying subjective experiences, such as pain intensity, along a continuous scale.

References

1. Physiological Gingival Melanin Hyperpigmentation Treatment with Injectable Vitamin C and Scalpel Technique: A Randomised Controlled Clinical Trial. International Journal of Dentistry (2023).
2. Laser-Assisted Depigmentation—An Introspection of the Science, Techniques, and Perceptions. Dentistry Journal (2020).
3. Treatment of oral hyperpigmentation and gummy smile using lasers and role of plasma as a novel treatment technique in dentistry: An introductory review. Oncotarget (2017).
4. Melanin: the biophysiology of oral melanocytes and physiological oral pigmentation. Head & Face Medicine (2014).
5. Laser Treatment for Melanin Gingival Pigmentations: A Comparison Study for 3 Laser Wavelengths 2780, 940, and 445 nm. International Journal of Dentistry (2020).