CPITN assessment of periodontal treatment needs in the population of Zagreb, Croatia.

The aim of this study was to assess the prevalence and required treatment of periodontal disease in Zagreb using the CPITN system. A total of 3176 subjects of both sexes, divided into reference age groups, was studied using the methods and standards recommended by the World Health Organization, the Community Periodontal Index of Treatment Needs (CPITN). A very high prevalence of periodontal disease in the population of Zagreb was recorded. Gingivitis was found in the entire population of school children and deep pockets were present even in those aged 20 years, the prevalence progressively rising with age. The need for oral hygiene instruction was recorded in almost all subjects examined, and the highest need for specialist periodontal treatment was registered in more than 56 per cent of the oldest subjects, over the age of 64. The data suggests the need for better organisation of preventive services and a more conscientious approach to treatment.