A Rare Oral Focal Mucinosis Presentation in the Aesthetic Zone: A Case Report

Abstract

The current case report presents a rare oral pathology of Oral Focal Mucinosis (OFM).
The patient developed marginal gingival inflammation subsequent to esthetic crown lengthening
surgery. The differential diagnosis included candidal infection, foreign body gingivitis, and
Desquamative Gingivitis (DG). An incisional biopsy was performed, indicating a definitive histopathological
diagnosis of OFM. OFM is a lesion developing due to over production of hyaluronic
acid by fibroblasts, compromising the normal collagen production. Treatment of OFM is
excisional biopsy, however; its location near the gingival margin in the aesthetic zone required a
minimally invasive surgical approach. Therefore, a less invasive treatment using corticosteroids
was administered, leading to resolution of the inflammation.