[Periodontal disease in Dutch adults]

A nationwide epidemiological survey was carried out on a stratified sample (age, sex, SES and area) of 2784 dentate people in the age of 15-74 years. Prevalence of plaque, gingivitis, calculus and pockets was recorded. About 85% of the individuals had gingivitis. The percentage of individuals with calculus varied from 40% (15-19 years old) to 76% in the oldest age group (65-74 year). More then 50% of the people, aged 30 and over had pockets greater than 3.5 mm.