Vol. 4, Issue 7, Part C (2018)

Abstract
Three planes of discrepancies are commonly described in orthodontics namely, transverse, sagittal and vertical. Of these, the sagittal discrepancies are most commonly encountered in day to day practice. Assessing these sagittal relationship is a challenging issue in orthodontics. A total of 100 lateral cephalograms were used for the study out of which 59 cephalograms belonged to male patients and 41 cephalograms belonged to female patients. All cephalograms were taken with patients in standing position with teeth in centric occlusion and lips relaxed. The results showed that there was statistically significant and highly correlated relationship between parameters used in the study for assessment of sagittal jaw relationship. There was a statistically significant and high correlation between FABA, AXB, and YEN, and parameters used for assessment of sagittal jaw relationship. Angular methods used for assessing sagittal jaw relationship such as FABA, AXB, YEN, W and Beta could demonstrate superiority for assessing anteroposterior jaw relationship over other methods such as AB plane, and ANB which showed more variability.