关键词: 低龄儿童龋, 龋活跃性检测Cariostat值, 龋均, 龋严重程度指数

Abstract: Objective To investigate the prevalence of early childhood caries(ECC) in children aged 0 to 2 years in Beijing,and to analyze the correlation between ECC and caries activity test(Cariostat score). Methods Totally 1 123 children aged 0 to 2 years from Haidian district in Beijing were examined by a cross-sectional sampling method from March to September 2016.The plaque samples were collected from buccal surfaces and incubated in the Cariostat test medium (Beijing GangDa Medical Technology CO., Ltd, China). Meanwhile mother/primary caregivers were also surveyed by oral health questionnaires. Results The ECC prevalence of children aged 0 to 2 years was found to be 13.2% with a mean decayed missed filled teeth(dmft) score of 0.44±1.35, and caries severe index(CSI)was 1.86±6.42.ECC, dmft, CSI and Cariostat value all increased significantly with age(P＜0.001).Cariostat test showed that most of the caries-free children were at lower level while most of the ECC children were at higher level(P＜0.001). Conclusions A strong correlation between the caries activity test (Cariostat score) and ECC exists in children aged 0 to 2 years.It is clear that Cariostat score can be used as an indicator for caries risk assessment and ECC prediction, and can provide reference for individualized management of caries.

Key words: early childhood caries, caries activity test(Cariostat score), decayed missed filled teeth, caries severe index