The objective of this study was to compare transverse dimensions of the dental arches and alveolar arches in the canine, premolar and molar regions of Class I and Class II div 1 malocclusion groups. This cross sectional study was performed at Lahore medical and dental college, from January 2011 to November 2011, using measurements on dental casts of 30 Class I and Class II div 1 adult female su...