Torus Mandibularis — MFDS Part 1 MCQ

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EasyOral PathologyTorus MandibularisMFDS Part 1

During routine oral examination, an adult is found to have smooth, mucosa-covered, painless, bony-hard swellings on the lingual surface of the mandible in both premolar regions. What is the most likely diagnosis?

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Correct answer: A — Torus mandibularis

The correct answer is **A, torus mandibularis**. Mandibular tori are benign, usually asymptomatic bony protuberances arising from the lingual surface of the mandible, classically around the canine–premolar region and commonly bilateral. Torus palatinus occurs in the midline of the hard palate. Buccal alveolar exostoses arise on the facial or buccal alveolar surface rather than at the characteristic lingual mandibular site. A peripheral osteoma is usually a discrete, often unilateral bony neoplasm rather than a symmetrical bilateral finding. Osteosarcoma is an aggressive malignancy and would be more likely to show progressive enlargement, pain, paraesthesia, tooth mobility or destructive radiographic changes. Mandibular tori generally require no treatment unless they are traumatised or interfere with prosthetic treatment or oral function.

Reference: Shibaguchi K, Morinaga K, Magori Y, et al. Computed Tomographic Analysis of Mandibular Tori and Their Relationship to Remaining Teeth. Diagnostics. 2025;15(4):414. https://pubmed.ncbi.nlm.nih.gov/40002564/