Prevalência e características da fratura coronária em incisivos permanentes superiores de escolares em uma cidade do sul do brasil / Prevalence and characteristics of crown fractures in permanent upper incisors from schoolchildren in a southern Brazilian city

ABSTRACT

The main goal of this study is to assess the prevalence of crown fractures in permanent upper incisors of schoolchildren using a photographic method. 227 children were photographed. Of the 889 teeth examined, 8,4 per cent of them presented some coronal fracture. Coronal fractures due to dental trauma were most pevalent in permanent upper incisors and more frequent in boys than in girls. Most of the fractures affected only the enamel and did not need restorative procedure.