RELATING VARIOUS PARAMETERS OF SELLA TURCICA IN SKELETAL CLASS I SUBJECTS HAVING DIFFERENT GROWTH PATTERNS: A CROSS SECTIONAL LATERAL CEPHALOMETRIC STUDY

Aim of the study: The purpose of this study was correlating various parameters of sella turcica in adult subjects with skeletal Class I having different growth patterns. Materials and Method: Lateral cephalograms of 180 skeletal Class I subjects (90 males, 90 females), aged 18-25 years were selected by ANB angle, W angle, Yen angle, Beta angle and Wits analysis. Subjects were categorised into three groups (average, horizontal and vertical) according to Jarabaks ratio and SN-GoGn angle. Length, depth, width, anteroposterior diameter, area and shape of sella turcica were assessed. Result: Data were analysed using Shapiro-Wilkinson test, T test, onewayanova test, posthoc test and Chi square test. In total no. of Class I subjects for sella turcica size, statistically highly significant difference found for sella length and area (p≤0.0001) which was larger in males and Significant difference found for sella depth (p≤0.03) which was higher in males whereas width (p≤0.001) was more in females. Sella size between growth patterns revealed statistically highly significant difference (p≤0.0001) with more mean for vertical growth pattern subjects. Normal shape of sella turcica was more prevalent in all growth. Conclusion: Gender difference was found for length, depth and area which was more in males and for width in females except for anteroposterior diameter. Statistically highly significant difference was found in vertical growth pattern subjects on comparing sella size between different growth pattern. Sexual dimorphism found for sella area more in males with average growth and sella depth which was more in females with vertical growth.