[Report on dental health activities in Konan-town, Koriyama-city].

Konan-town in Fukushima-pref. has high-level decay of deciduous teeth of the young. The individual level (guardians of the young), the professional level (the medicalcare and the administration), and the dental health activities level (the systematist and the residents of the district) all together have practiced dental health activities by "Shiroi-ha Kyoshitsu" for 73 one-year-old infants starting in 1986 for three years. This report is based on the results of the activities which have been conducted for the first 18 months. "Shiroi-ha Kyoshitsu" has practiced activities such as surveys on oral hygiene practice, teaching how to chose snacks and mouth cleaning and dental examination. The information on improving dental hygiene was given to the district level to stress the importance of good dental practices. In the study group, the rate of high-level caries increased from 2.4% to 58.6% (over 18 month period); however, it decreased to 4.6% if we compared with the rate among the comparative group of infants (at the age of 2 to 4 as of 1985) when they were 18 months old. The rate of B or C type caries is 3.2% which was only a half of what it was before. On the other hand, when using the dmft index for the study group of infants, the rate of the dmf index changed from 0.05 teeth (at date started) to 2.45 teeth (over an 18 month period).(ABSTRACT TRUNCATED AT 250 WORDS)