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Objectives: To correlate sella turcica bridging and canine impaction and to associate the impaction with angular and sectoral parameters. Materials and Method: Pre-treatment cephalometic and panoramic radiographs of the selected patients were obtained. Group 1 consisted of 25 patients with palatally impacted canines. Group 2 (control group) consisted of 25 subjects with normally erupted canines.The data obtained is analysed and compared between the groups. Results: there was a reduced interclinoidal distance among the subjects with impacted canines (P = 0.009). The comparison of mean depths and diameters between the subjects and the controls was found to be insignificant. The highest frequency of type II calcification was reported in 19 patients (76%) with impacted canines. Type III calcification of the interclinoid ligament was observed in (20%) subjects with impacted canines, whereas no subjects had type III calcification in the control group. There was a positive correlation between inter clinoidal distance and angle and a negative correlation between inter clinoidal distance and sectoral values. Conclusion: The frequency of sella turcica bridging is increased in patients with palatal canine impactions. Sella turcica length is reduced in patients with palatal canine impactions. There is no significant difference in the size of sella between males and females. The chances of having partial or complete bridging of sella turcica in subjects with palatally impacted canines are approximately greater than those with normally erupted canines.
Rosane Cavalcante Fragoso, Brasil
Chief Scientific Officer and Head of a Research Group
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