“Screening the Periodontal Health Status and Oral Hygiene Practice in Preschool and Primary School Children” (2021) Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), 38(2), pp. 81–96. doi:10.55562/jrucs.v38i2.228.