Mohammad AbulazizAlmidaj ,Abdulrahman Abdullah Altariqi,Mohammed ThafarAldaosari ,SaleemFaiz Shaikh, Anas Khalid AlBlehed,Abdullah. A. Aljabr. The Effect of Mother’s Education Level on Oral Hygiene Awareness and Practices Among Pre-School Children of Zulfi Region, Saudi Arabia. Annals of RSCB 2021, 15604-15614.