Periodontal treatment needs in populations under 20 years of age in Espoo, Finland and Chiangmai, Thailand

The aim of this study was to assess the periodontal treatment needs at under 20 yr of age in the affluent area of Espoo, Finland, offering comprehensive public dental health care, as compared to a less advantaged area in Chiangmai, Thailand. In Espoo, 50 girls and 50 boys were examined in each age group of 7, 12 and 17 yr. In Chiangmai equal numbers of girls and boys were examined to obtain a group of 89 subjects aged 18.5 + 0.6 yr. According to the Community Periodontal Index of Treatment Needs (CPITN) the need of scaling increased in Espoo from 6% of the 7-yr-olds to 39% of the 17-yr-olds. Moderate pocketing (4-5 mm) occurred in one subject at age 12 and in three subjects at age 17. In Chiangmai, deep pockets (6 mm and over) were recorded for 1%, moderate pockets for a total of 44%, and dental calculus as the highest treatment need indicator in the remaining 55%, indicating a need for professional treatment in 100% of the group examined. The mean number of sextants requiring scaling was 0.6 per person at age 17 in Espoo as compared to 4.5 at 18.5 yr of age in Chiangmai. Three or more healthy sextants per subject were recorded for 47% of the 17-yr-olds in Espoo and for only 6% of the 18.5-yr-olds in Chiangmai. It was concluded that already at young age vast differences occur between periodontal treatment needs in industrialized and developing countries.