Co-relation between ANB angle, Wits value and SNP plane angle

ABSTRACT

ANB angle and Wits value are used to asses the Sagital pattern of the patient cephalometrically. The two variables are dependent on change in theAntero-posterior and vertical position of Point A. SNP plane angle determines the rotation change in position of Palatal plane with reference to SN plane. This rotational change might have an impact on the position of point A and thus the ANB angle and Wits value. Aim of the study was to establish correlation between ANB, Wits Value and SNP plane angle. Study was conducted on 60 subjects and following conclusions were drawn. 1. Statistically significant correlations was found between ANB angle and Wits Value 2. Statistically insignificant correlation was found between SNP plane angle and ANB and Wits Value suggesting that rotational change in this Palate with reference to SN plane has no impact on the sagital assessment parameters 3. Statistically significant correlations was found between