Liquid Nitrogen as a Novel Treatment for Gingival Depigmentation: A Case Report.

Gingiva is an important part of a smile, and it is considered the most frequently pigmented tissue in the oral cavity. Although gingival pigmentation is physiologic in most cases, it is one of the common causes of esthetic concerns in patients with gummy smiles. Hence, the demand for cosmetic therapy of gingival melanin pigmentation has become common. Numerous procedures have been suggested to treat this problem, such as gingivectomy, free gingival grafts, cryosurgery, electrosurgery, laser therapy, etc. Here we report a case of gingival hyperpigmentation using liquid nitrogen cryosurgery. The six-month follow-up examination confirmed effective depigmentation with no complications. This simple technique proves to be an excellent choice for managing gingival pigmentation, offering both pleasing cosmetic results and high patient satisfaction.