[An epidemiological study on dental-periodontal pathology in a sample of the school-age population of the city of Naples. I. Periodontal pathology].

The paper reports the results of a study of the prevalence of periodontal diseases found in a sample group, aged between 6 and 18, resident in Naples. The structure of the survey, the clinical methods of collecting data and the statistical processing of data were carried out according to WHO directives regarding the study of oral pathologies.