A national study was carried out in France in 1993 to assess the perio
dontal status of the population aged 35-44 yr. The study took part in
the Second International Collaborative Study of Oral Health Outcomes d
eveloped and coordinated by the World Health Organization. The represe
ntative sample was composed of 1000 subjects. The Community Periodonta
l Index of Treatment Needs (CPITN) index Ras used. Gingivitis prevalen
ce was high (80.4%) while 26.6% of dentate subjects had shallow pocket
s (4-5 mm). Deep pockets (>6 mm) were rare (1.6%) concerning on averag
e 0.1 sextant per subject; 87.5% of the 994 dentate adults needed peri
odontal treatment. Oral health education and scaling should reduce per
iodontal pathology in this population group.