Assessment of Upper Dental Arch Symmetry in Class I Iraqi Adults

ABSTRSCT Background A wealth of information that obtained from dental cast measurements have significant importance in orthodontic diagnosis and treatment planning, the aim of this retrospective study was to evaluate the symmetry of dental arch in Iraqi adults with class I normal occlusion. Materials and method The sample comprised 60 dental casts (30 males 30 females), aged (18-25). Interpretation of dental arch angular measurements was made by AutoCAD computer program. Results The angular measurements were smaller in the right side of dental arch than the left side, there was no significant gender difference in all variables, no significant difference between right and left anterior arch segment and highly significant difference between right and left posterior arch segments. Conclusion The upper dental arch is asymmetrical in anterior and posterior segments and narrower on the right side than on the left side.