Torus mandibularis  From Wikipedia, the free encyclopedia Jump
to: navigation, search Torus mandibularis Classification and
external resources Torus cropped.jpg Mandibular torus in
premolar area ICD-10 K10.0 ICD-9 526.81  Torus mandibularis (pl.
tori mandibular) (or mandibular torus (pl. mandibular tori) in
English) is a bony growth in the mandible along the surface
nearest to the tongue. Mandibular tori are usually present near
the premolars AND above the location of the mylohyoid muscle's
attachment to the mandible.[1] In 90% of cases, there is a torus
on both the left and right sides, making this finding an
overwhelmingly bilateral condition.  The prevalence of
mandibular tori ranges from 5% - 40%. It is less common than
bony growths occurring on the palate, known as torus palatinus.
Mandibular tori are more common in Asian and Inuit populations,
and slightly more common in males. In the United States, the
prevalence is 7% - 10% of the population.  It is believed that
mandibular tori are caused by several