Prevalence of crown fracture of the permanent maxillary incisors in primary school pupils in Zahedan in 2003-2004

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Background: Crown fracture of maxillary incisors is the common injury which can lead to unfavorable psycological effects on both children and their parents. Moreover, it can create a malocclusion. The goal of this study was to determine the prevalence of crown fracture of maxillary incisors in primary school pupils in Zahedan. Methods and Materials: In this cross – sectional descriptive study, data were gathered through questionnaire, interview and clinical examination in 2190 school children,(1219 girls and 971 boys). The samples were chosen by a simple random method from five geographical areas in Zahedan. The data were analyzed using SPSS software and χ2 test. Results: The Prevalence of crown fracture in the studied group was 11.8% (95% CI: 10.5%-13.3%) with no significant difference between boys and girls. The highest frequency of trauma was observed in the 11 year age group. Falls were the major sources of trauma (44%) and the maxillary central incisors were the most affected. (P

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