Prevalence and contributing factors of dental caries of 6-year-old children in four regions of China.

ABSTRACT:

Background

From 2005 to 2015, the prevalence of dental caries in both primary and permanent dentitions was significantly increased in China. Previous studies have shown that the prevalence of permanent dental caries in school-aged children had already reached 19.7%-54.0%, 97.5% affecting first permanent molars. This study aimed to investigate the prevalence and contributing factors of dental caries in 6-year-old children in four regions of China to provide information for oral health promotion programs.

Methods

A randomized cluster sampling method was employed in the study. All 6-year-old first grade children from the selected schools were invited to receive a clinical oral examination. Dental caries were diagnosed according to the World Health Organization criteria. The eru

SUBMITTER: Wang Z 

PROVIDER: S-EPMC6546074 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature