back to contentsDental caries prevalence in 12-year- old children in Shenyang , China
Jing Wang*,**, Shihoko Sakuma*,
Akihiro Yoshihara*, Seigo Kobayashi*, Hideo Miyazaki*
*Department of Preventive Dentistry, School of Dentistry,Niigata
University
(Chief: Prof. Hideo Miyazaki)
**Department of Preventive Dentistry, Faculty of Stomatology, China Medical
University
Abstract:
@The purpose of the survey reported herein was to evaluate the caries
prevalence in 12-year-old children in the city of Shenyang, China. In total 919
children aged 12 years attending the Shenyang School No.126 were selected.
Five calibrated dentists examined their dental health status annually using
dental mirrors, explorers and artificial lights between 1992 and 1996. The
annual caries prevalence rates ranged from 59.1% to 70.6% and no significant
differences were found among survey years. The mean DMFT was about 1.5 until
1995 and then increased to 1.8 in 1996, and a significant difference was found
between the DMFT in 1992 and 1996. Among the components of the DMFT, the
mean number of DT decreased and that of FT increased annually up to 1995. In
1996, conversely, the mean DT was significantly increased (p<0.01) compared
with that in 1995 and the mean FT was decreased, although no significant
difference was found. However, both the caries prevalence rates and the DMFT
in these subjects examined between 1992 and 1996 were twice the Chinese
national means. These results suggest that this school-based dental health
program, implemented in 1992, should be improved to provide better dental
health for the children.