Mandibular Tori — ORE Part 1 MCQ

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EasyOral PathologyMandibular ToriORE Part 1

A 35-year-old patient attends for a routine examination. Bilateral, painless, hard bony swellings are present on the lingual surface of the mandible in the lower premolar region. The overlying mucosa is normal. What is the most likely diagnosis?

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Correct answer: C — Torus mandibularis

C. Torus mandibularis is a benign bony outgrowth characteristically found on the lingual aspect of the mandible, often bilaterally and symmetrically in the canine–premolar region. It is usually painless and covered by normal mucosa. Osteoma is more commonly a solitary, discrete bony lesion and would not usually produce this typical bilateral distribution. Fibrous dysplasia causes diffuse expansion of bone rather than paired localised lingual protuberances. A peripheral ossifying fibroma is a soft-tissue gingival lesion, not a bilateral cortical bony swelling. Osteosarcoma would be expected to show concerning features such as progressive enlargement, pain, paraesthesia, tooth mobility or radiographic destruction rather than stable symmetrical exostoses.

Reference: Mermod M, Hoarau R. Mandibular tori. CMAJ. 2015. https://pubmed.ncbi.nlm.nih.gov/40002564/