Background and aim: a lot of children aged 6-12 years old experience C1I malocclusion so having knowledge of the prevalence of this malocclusion can be useful in its prevention and early treatment.
The aim of this study was to evaluate the prevalence of C1I malocclusion among girls aged 6-12 years old in the west of Tehran Methods and Materials: in this cross-sectional study,425 girls,6-12 years old,from primary schools in the west of Tehran were investigated through clinical examination and a questionnaire. Each subject was examined under class light,on class chair and molar relationship,overjet,overbite,open bite and crossbite,crowding,diastema,rotation,congenital missing teeth,supernumerary teeth,cleft lip and palate,oral habits and premature loss of teeth were examined and recorded in the questionnaire
Results: in 65.2% of the children,C1I occlusion was observed,out of it.7% showed normal occlusion and 58.2% had malocclusion. The prevalence of different kinds of C1I malocclusion was as follows: Midline deviation: 68.4%] increased overjet 31.696,increased overbite 25.1% an open bite 4.9%. Tooth rotation in 31.696,anterior cross bite in 0.4%] posterior crossbite in 5.7% and diastema in 5.3% of the subjects were seen Conclusion: Based on the abore results,over half of the investigated children had C1I occlusion,from them 7% showed a normal occlusion
R. Haghgoo ,R. Haghgoo ,Z. Matini ,
[Evaluation of ClI malocclusion prevalence among girls aged 6-12 years old in primay schools in the west of Tehran ,
J. Islam. Dent. Assoc. Iran. 2004;
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