Fig. 5From: National dental policies and socio-demographic factors affecting changes in the incidence of periodontal treatments in Korean: A nationwide population-based retrospective cohort study from 2002–2013Living area-specific 1-year prevalence rates of incidence rates of periodontal treatment (a); and sex-specific accumulated incidence rates of periodontal treatment (b) during 2002–2013 in South KoreaBack to article page