Discussion
Similar to tori, there are several theories on the genesis of exostoses. The occlusal stress on the teeth in the afflicted areas may have been abnormally high or prolonged, which would explain the bony protrusion. The occurrence of tori has been found to be significantly correlated with tooth abrasion. While Reichart et al.9noticed a significant correlation between tooth attrition and the presence of tori in the Thai population, they were unable to detect such an association in German people and advised against drawing any conclusion about the functional implications of this finding. Evidence of occlusal stress, such as that produced by clenching and grinding, was also shown to be significantly correlated with the existence of TM, as was reported by Kerdporn et al., 21. Antoniades et al.10 proposed that the quasi-continuous model of inheritance may also apply to buccal and palatal exostoses in light of their similarity in structure and position to TM. The authors concluded that the co-occurrence of tori and exostoses in the same person is a highly exceptional event after documenting a third incidence of simultaneous TP with palatal and buccal exostoses.
However, prior to beginning orthodontic treatment, all three of the participants in this case series demonstrated a history of palatal tori. Jainkittivong et al.,44 found that the co-occurrence of TP and TM was also linked to a greater prevalence of exostoses and tori. 5.9% of their participants were found to have both buccal and palatal exostoses, it was also found. The results support Nery et al.’s45 theory that this group may represent a general type of multiple exostoses syndrome.