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Prevalence and types of developmental enamel defects in primary teeth of preterm children

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To compare the prevalence and developmental enamel defect (DED) types in primary teeth in preterm-born with term-born children. MATERIALS AND METHOD: This study included 150 children. The children were divided into two groups as premature (n=75, mean age=7.1±2.9 year) and term-born (control group, n=75, mean age=7.6±2.5 year). In the clinical examination, DED and the defect type were recorded according to the modified DED index. Data were analyzed using Pearson s Chi-Square, Fisher s exact and t-tests. RESULTS: DED was observed 34/75 (45.3%) in the premature group and 15/75 (20%) in the control group (p 0.01). DED was detected in 193 teeth. The prevalence of DED was higher in the premature group (n=148, 76.7%) than in the control group (n=45, 23.3%). DED was most commonly found in the maxillary incisors of the premature group and the maxillary molars of the control group. The DED types were found to be enamel opacity (demarcated white/cream opacity, demarcated yellow/brown opacity, diffuse opacity as lines, and diffuse patchy opacity) in 88.5% (n=131) teeth and enamel hypoplasia in 11.5% (n=17) teeth of the premature group, and as enamel hypoplasia in all teeth of the control group (n=45, 100%). Significantly more teeth in the premature group than in the control group exhibited demarcated white/cream opacity and demarcated yellow/brown opacity at the enamel (p 0.01). CONCLUSION: This study showed that premature children had more DED than term-born children, and these defects were mostly observed in the maxillary incisors and observed as demarcated opacities.

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Deciduous teeth , dental enamel , infant , premature

Acta Odontologica Turcica

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