Gordana Filipović ¹,
Mirjana Janošević¹,
Maja Stošić¹,
Donka Stojanović²,
Olivera Tričković-Janjić¹

¹MeDIcAL FAcULty,
²cLINIc OF DeNtIstRy, NIs, seRBIA

Background: Class III malocclusion is result of development of mandible and undevelopment of maxila. The aim of this study was to compare the transverse dimensions of the dental arches of Class III groups with a group of untreated normal occlusion subjects. Methods.This study was performed using measurements of dental casts of 50 Class III malocclusion and 50 normal occlusion, ages 17-20. Intercanine, interpremolares and intermolares widths measurements were taken. Independent samples t-test was applied for comparing the groups. Results. All maxillary dental arch widths were significantly narrower in Class III gr oup,exccept intercanine width for woman. Mandibular dental arch widths were larger in Class III group.

Key words: malocclusion, dental arches orthodontic anomaly