Buccal exostosis is broad-based, non-malignant surface growth occurring on the outer or facial surface of the maxilla and/or mandible, found usually in the premolar and molar region. It begins to develop in early adulthood and may very slowly enlarge over the years. A 24-year-old female presented with gingival enlargement on the buccal aspect of both the quadrants of the mandibular arch, which was painless, self limiting, increase patient concern about poor esthetics, inability to perform oral hygiene procedures, and compromised periodontal health by causing food lodgment. The bony enlargement was treated with resective osseous surgery. The following paper presents a rare case of the bilateral mandibular buccal exostosis and its successful management. Keywords: Exostosis, Bony Overgrowth, Resective Osseous Surgery ,Bony Protuberance