Variant Anatomy of the Torus Mandibularis

  • Soichiro IbaragiEmail author


In Latin, “tori” means “to stand out” or “lump”. A torus mandibularis (TM) is a slow-growing bony protuberance located at the lingual side of the mandible in the premolar region above the mylohyoid line. It consists of dense cortical bone with a small amount of bone marrow and is covered with thin mucosa and periosteum. Patients therefore occasionally suffer scalds or injuries to the mucosa of the TM by hot water or toothbrushing. A TM is usually found incidentally during a dental checkup as it usually exhibits no symptoms.


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Authors and Affiliations

  1. 1.Department of Oral and Maxillofacial SurgeryOkayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayamaJapan

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