Prevalence of Periodontitis in a 70‐Year‐Old Population in Western Norway According to the ACES 2018 Classification Framework: A Cross‐Sectional Study

AIM: To assess the prevalence and severity of periodontitis in an older adult population in Western Norway using the periodontitis definition by the recently published ACES 2018 Classification Framework. MATERIALS AND METHODS: In the present study, 1298 70-year-old subjects answered a questionnaire and underwent a full-mouth periodontal examination. The prevalence of periodontitis, stages, extents and grades was presented according to the Framework applying the 2018 periodontal classification scheme in epidemiological survey (ACES). Descriptive analyses were used, and results were expressed as percentages of the total number of observations. RESULTS: According to ACES, periodontitis was detected in 100% of the study population, and Stage II, Stage III and Stage IV were present in 21%, 75% and 4% of the individuals, respectively. The majority of periodontitis cases demonstrated generalised periodontitis and Grade B was the predominant grade in the periodontitis cases. The mean number of teeth in the study population was 25.3. CONCLUSION: There is a high burden of periodontitis in the present population of old individuals, and the majority of participants were classified as Stage III periodontitis. The cut-offs for interdental clinical attachment loss in the definition of periodontitis affect the estimate of cases, stages and extent of periodontitis in older age groups.