Prevalence of dental erosion among 11-12 year old school children in Baghdad– Al- Rusafa side

Abstract

Back ground: dental erosion is the irreversible loss of dental hard tissue by a direct acid attack which is due to chemical process not involving bacteria and not directly associated with mechanical or traumatic factors, or with dental caries. The aim of this study is to determine the prevalence of dental erosion among the total sample which composed of 800 children. Material and method: this survey was conducted on children aged between 11-12 year old in three primary schools in Baghdad – Al- Rusafa side. The school children participated in this study were 800 (380 boys and 420 girls), the affected group was consisting of (31) boys and (24) girls. The level of erosion was recorded by using modified tooth wear index (1994).Results of this study showed that the prevalence of dental erosion was (6.87%), distributed as (3.13%) mild erosion, (2.5%) moderate erosion and (1.25%) severe erosion. Higher prevalence was found in boys (3.87%) than girls (3%) with significant difference.A statistically significant difference (P