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

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. 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<0/05) The prevalence of crown fracture of the permanent maxillary incisors in primary schoolchildren in Zahedan was 11/8%. Therefore, provision of information to the children and parents and school staff about the importance of early management and ways of preventing dental trauma is essential.