4.1 Etiological consideration
Torus is a common benign exostosis that represents a developmental
lesion appearing in puberty or early adulthood and becoming larger with
advancing age. It has a hereditary etiology in about a third of cases.
Curran et.al 6 found TM and TP in 3 generations of
women in one family. In the study by Eggen7, the
genetic origin of TM was documented in 29.5% of patients. The remaining
70% were attributed to either environmental factors or mechanical
issues caused by occlusal stress.4,5 There is a
predilection for the development of TM and TMAX adjacent to the teeth
receiving local stress because of excessive teeth grinding and jaw
clenching, known bruxism. 4, 5, 8