“…Similar findings were reported by another study conducted in UAE, which also showed no effect of employment status on the level of OH knowledge scores (Abu-Gharbieh, Saddik, El-Faramawi, Hamidi, & Basheti, 2019). In addition to the profession, formal education was found to be positively correlated with knowledge about OH and PD, this has been highlighted in other published studies (Azodo & Omili, 2014;Nyorobi et al, 2018;Zavras, Vrahopoulos, Souliotis, Silvestros, & Vrotsos, 2002). Our findings suggested the presence of association between educational level and level of oral hygiene and PD knowledge, which is reflected by a significantly higher awareness, the same pattern, was reported by previous surveys (Macek et al, 2010;Márquez-Arrico et al, 2019;Nyorobi et al, 2018).…”