“…Oral health literacy (OHL) is defined as the degree to which individuals have the capacity to obtain, process, and understand basic oral health information and services needed to make appropriate health decisions (U.S. Department of Health & Human Services, 2000); such literacy is an important predictor of oral health status and related hygiene behaviors (Naghibi Sistani, Virtanen, Yazdani, & Murtomaa, 2017). Several studies have highlighted that inadequate OHL is associated with adverse oral health outcomes, higher medical expense, and lower medical adherence (Baskaradoss, 2018;Macek et al, 2016;Mohammadi, Malekmohammadi, Hajizamani, & Mahani, 2018). Older age, lower educational level, lower economic status, unemployment, and wearing of removable dentures are other risk factors for inadequate OHL (Ho, Liu, et al, 2019;Naghibi Sistani, Montazeri, Yazdani, & Murtomaa, 2014;Vyas, Nagarajappa, Dasar, & Mishra, 2016).…”