The purpose of the study is to determine the prevalence of dental caries in preterm birth children aged 2-5 years in primary dentition.~PICO format:- Population (P) = preterm children aged 2-5 years attending Cairo University Children's Hospital Abo El-Rish at El-Monira, Cairo, Egypt.~Outcome (O) =prevalence of dental caries
The purpose of the study is to determine the prevalence of dental caries in preterm birth children aged 2-5 years in primary dentition.