“…There are presently 10 categories that are evaluated in the DI: overjet, overbite, anterior open bite, lateral open bite, crowding, occlusion, lingual posterior crossbite, buccal posterior crossbite, cephalometric values (ANB angle, IMPA, SN-GoGn), and an ''other'' category. 1,2 Occlusal indices are helpful to clinicians in diagnosis, research design, decision making, and evaluation of orthodontic treatment need and clinical outcomes. The Peer Assessment Rating (PAR) index was developed to record measurements of a malocclusion and has been widely used for the evaluation of the severity of malocclusions and the effects of treatment in resolving them.…”