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