Torus palatinus (pl. `tori palatinus)`` [palatinus torus ``(pl. palatal tori`) in English] is a bony protrusion on the palate. Palatal tori are usually present on the midline of the hard palate. Most palatal tori are less than 2 cm in diameter, but their size can change throughout life. Prevalence of palatal tori ranges from 9% - 60% and are...