Table 1.

The angular and linear cephalometric measurements with description.

Measurements	Description
SNA (The sella-nasion-A point)	An angle relates to the antero-posterior position of the maxillary apical base to a line passing through the anterior cranial base.
SNB (The sella-nasion-B point)	An angle relates to the antero-posterior position of the mandibular apical base to a line passing through the anterior cranial base.
ANB (A point- nasion-B Point)	An angle relates to the antero-posterior relationship of the mandible to the maxilla.
Wits appraisal	A linear cephalometric analytic obtained by projecting straight lines from the A and B points, respectively, unto the functional occlusal plane at 90° and measuring the horizontal distance form point AO to BO