Epidemiological analysis of dental caries among pupils in Shenzhen city

Abstract

Objective To understand the distribution and treatment of dental caries among primary school students in Shenzhen City, and to provide a basis for prevention and treatment of dental caries of primary school students in Shenzhen City. Methods Using cluster sampling method, in the 10 districts of Shenzhen city, a total of 74 308 stu⁃ dents in 63 primary school, were randomly selected and received examination of dental caries. Results Prevalence of caries was 15.7%. Decayed, missing and filled teeth (DMFT) was 0.37 ± 0.18. Significant differences in age and gender distribution were found (P < 0.05). There is a correlation between prevalence of permanent teeth caries and age (P < 0.05). Rate of pit and fissure sealant, filling in permanent teeth were 31.17%, 19.05%. Controlling age and gender fac⁃ tors, significant differences between genders were found in rate of pit and fissure sealant, filling in permanent teeth (P < 0.05). Conclusion Prevention of dental caries for pupils in Shenzhen city needs to be strengthened.

Keywords

• Pupils，
• Caries，
• Permanent teeth，
• Pit and fissure sealant，
• Epidemiology，