Blue laser-assisted depigmentation of gingiva using non-ablative technique

Area of Science:

• Dentistry
• Laser Surgery
• Oral Medicine

Background:

• Diode lasers are standard in soft tissue dental procedures.
• Newer diode lasers emit blue light (e.g., 445 nm), expanding therapeutic options.
• Gingival hyperpigmentation is often related to ethnicity and melanin content.

Purpose of the Study:

• To evaluate the efficacy of a 445 nm blue wavelength diode laser for treating ethnicity-related gingival hyperpigmentation.
• To assess the non-ablative application of this laser modality in dental surgery.

Main Methods:

• A case of gingival hyperpigmentation was treated using a 445 nm blue light soft tissue diode laser.
• The treatment employed a non-ablative technique, targeting melanin chromophores.
• Postoperative follow-up was conducted for 9 months to monitor for recurrence.

Main Results:

• Successful removal of gingival hyperpigmentation was achieved with the 445 nm diode laser.
• The non-ablative approach effectively denatured melanin-containing cells.
• No recurrence of pigmentation was noted during the 9-month follow-up period.

Conclusions:

• Blue wavelength diode lasers, specifically at 445 nm, offer a safe and effective treatment for gingival hyperpigmentation.
• The non-ablative technique is a viable option for managing melanin-related pigmentation in the gingiva.
• Long-term stability suggests this laser modality is a promising solution for cosmetic dental concerns.