Original Research Article
Year: 2018 | Month: January | Volume: 8 | Issue: 1 | Pages: 94-100
Association between Sella Turcica Bridging and Canine Impaction in Skeletal Class III Malocclusion
Dr. Rasitha V1, Dr. Dharma RM2, Dr Manjunath Hegde3
1Post Graduate, 2Professor and HOD, 3Reader,
DAPM RV Dental College, Bangalore
Corresponding Author: Dr. Rasitha V
Objective of study: The association of sella turcica bridging and various dental anomalies has been an area of interest for researchers. The objectives of this study is to test whether an association exist between sella turcica bridging and canine impaction in skeletal class III malocclusion
Methodology: Orthodontic records comprising standard quality lateral cephalograms and dental panoramic radiographs were selected. Twenty cases with skeletal class III malocclusion and canine impaction (mean age 15.2 yrs) and twenty controls with skeletal class III, without canine impaction (mean age 14.7 yrs) were included in the study. Skeletal class III were selected based on ANB <-10, Wits appraisal < -2mm and β>350 angle and canine impactions were selected based on sector analysis, power and short analysis. Comparison and association of sella turcica bridging and canine impaction was carried out by chi -square test and Odds ratio.
Results: The frequency of partial and complete calcification in study groups were 80% , where as in controls more than 55% are without calcification which shows it is a statistically significant (p=0.02) result .The odds ratio of partial and complete bridging among study group was 5 times greater than controls shows strong association.
Conclusion: The result of this study shows that there is a strong association between sella turcica bridging and canine impaction in skeletal class III malocclusions. Hence sella bridging can be used as a diagnostic parameter for canine impactions.
Key words: Sella Turcica Bridging, Canine Impaction, Skeletal Class III Malocclusion