“…Many studies have shown the effectiveness of oral hygiene management, including the application of CHX, for respiratory disease prevention in ICU patients [6,11,21,41,47,48,51,53,54,56,60,61,[67][68][69][70][71][72][73][74][75][76]. In 2013, Hillier et al reported that the education of nurses on oral care, including CHX application and other oral care methods, reduced the incidence of VAP [3].…”