Occlusal Features for a Sample of 9-11 Year Old Students from Ramadi City

Abstract

Objective: The study was conducted to assess the occlusal features of an Iraqi student's sample residing in Ramadi city in the west of Iraq. Materials and Methods: The investigation was carried out on 900 subjects, 525 males and 375 females, who had mixed dentition. Their age range is 9-11 years. The assessment procedures of occlusal features were done by direct intraoral measurement to obtain the desired results. Conclusion: Class I molar occlusion was reported to have the highest frequency, while class III had the lowest frequency. The highest number of the subjects had over jet and over bite (2-4 mm). Mandibular over jet showed small percentage and the frequency increased with age. The frequency of scissor bite was very little. The frequency of rotation and maxillary midline diastema was high and displacement was low. The frequency of spacing was higher in upper anterior segments, while the frequency of crowding was higher in lower anterior segments. Lastly, there was no significant difference between males and females during mixed dentition period in terms of the occlusal features.