Malocclusion assessment in orthodontically treated young Iraqi (6-18) years old

Abstract

The aim of this study was to provide an additional information about occlusal variations, and to determine the possible sex difference in a group of young Iraqi who were seeking for orthodontic treatment.A sample of (253) orthodontically treated patients (125 female and 128 male) selected from (3719) patients attending P.O.P department in college of dentistry in Mosul University, for each one the age, sex, molar occlusion in accompanied to some selected malocclusion criteria (crowding, spacing, crossbite and openbite) were recorded. The results of this research evaluated the number, percentage for each type of molar occlusion and the malocclusion criteria. The using of two sided Z-test of twoproportions at (p<0.05) indicate that significant sex difference in CL IIb, CL II1,crowding and spacing and a non-significant difference in CL Ib, CLIu, CL II, CL II2, CL III, CLIV, crossbite and openbite. The occlusal variation for Iraqi follows a universal general distributional pattern for most world populations.