Subjects : The sample of this study consisted of 1000 students (580 female and 420 male) studying in the Faculty of Dentistry, Fayoum University, Fayoum government , Egypt. The age ranged from 18 to 23 years old.
Methods : All students should fulfill the following criteria : Having full permanent dentition without any missing teeth nor previous orthodontic treatment was the main inclusion criteria. The occlusion was assessed when the patients were guided to occlude in centric occlusion. All students were examined clinically on the dental chairs by single orthodontist. The collected data was statistically analyzed. Statistical analysis was performed with IBM® SPSS® Statistics Version 20 for Windows.
Results : The results of the study revealed that 30.1% of the sample had normal occlusion and 69.9% had malocclusion. Class I malocclusion was found in 33.1% of the subjects , followed by Class II malocclusion in 20.2% and finally Class III malocclusion in 16.6% of .
Conclusion : Angle malocclusion was found to be in 69.9% of sample. Class I malocclusion was of highest percentage followed by Class II malocclusion and finally Class III malocclusion .