Objectives: The rate of caries progression in primary teeth has rarely been studied, with most studies on early childhood caries reporting the percentage of lesions that remain at a certain stage of disease over a period of time. The aim of the present study was to examine the prevalence and behavior of proximal and occlusal carious lesions in primary teeth among children from low socio-economic status.
Study Design: This retrospective study was based on bite-wing radiographs of 95 children aged 5-12 taken at 6-12 months intervals, with a follow-up period of at least three years.