1 Introduction Gingiva is physiologically pigmented due to the deposition of melanin pigments by the melanocytes in the gingival tissues (Dummett 1946). However, increased melanin pigmentation may occur in some individuals due to certain local and systemic conditions and syndromes such as smoking, use of certain medications, unintended implantation of amalgam restoration, Addison's disease, Albright's syndrome, Acromegaly, etc. (Rotbeh et al. 2022; Alhajj and Alhajj 2020).
