[Results of the caries prevention program in Gödöllö. II. Periodontal studies].

For measuring the mouth hygiene the OHI-S index and for judging the gingivitis the PMA index were used in the screening tests of 1982 and 1986/87. As the result of the education for intensive mouth hygiene the OHI-S value diminished from 1.38 to 0.51 at the age of 3 years and from 1.17 to 0.44 at the age of 6 years. The gingivitis reduction was 30% at the age of 3 years while at the age of 6 years it was but 10%. The more grave gingivitis (PMA 2-3) disappeared. All that may exemplify that the mouth hygiene programmes introduced at the Kindergarten age are promising.