2021. Dental caries prevalence and severity in relation to residential factor among (6-9) years school age children in two different area in Baghdad city. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ). 28, 2 (Oct. 2021), 31–45. DOI:https://doi.org/10.55562/jrucs.v28i2.387.