“…Previous studies have stated that ideal oral hygiene must include: (a) brushing teeth after meals at least twice daily; (b) using dental floss at least once a day, especially before bedtime; (c) undergoing dental checkups and scaling; and (d) avoiding betel nut chewing, smoking, and alcohol drinking (American Dental Association, [ADA], ; National Health Insurance [NHI], ; Taiwan Oral Health Care Association, ). Most studies related to oral health have focused on vulnerable groups, such as people with mental illness, in intensive care units, in rehabilitation and with disabilities; older people; and people with cancer (Chan, Lee, Poh, Ng, & Prabhakaran, ; Danckert, Ryan, Plummer, & Williams, ; Liu et al., ; Saito et al., ). Given the lack of studies on oral hygiene among HCV carriers during AVT, this study explores whether the standard oral hygiene programme (OHP), combined with home phone counselling for HCV patients receiving AVT, could improve their oral health behaviours, oral health status, and completion rate of treatment.…”