Comparison of commercially available arch wires with normal dental arch in a group of Iranian population.

Statement Of The Problem: The stability of orthodontic treatment depends on preserving the patient's pretreatment arch form and arch size during and after treatment.

Purpose: This investigation was aimed to study the size and shape of Iranian mandibular dental arch and evaluate the correlation of their average dental arch with commercially available preformed rectangular nickel-titanium arch wires.

Materials And Method: In this study, 148 subjects were selected among students of Shiraz University of Medical Sciences.