An eight-year longitudinal study for caries status on primary and permanent dentitions in Beijing children

Wei jian Wang, Yi hong Li, Jin you Bian

Research output: Contribution to journalArticle


OBJECTIVE: To study whether the caries status of the primary dentition correlated with status of the permanent in the same cohort over an eight-year period. To determine whether the caries status of the primary dentition can be used to predict caries in the permanent dentition. METHODS: A total of 362 children, 3 - 4 years old in the baseline study in 1992 were re-examined in 2000 based on WHO criteria and methods. RESULTS: Statistically significant associations were observed between the caries prevalence in primary and permanent teeth (P < 0.01) and between DMFT(s) and dmft(s) (P < 0.01). Children who had caries in the primary teeth were nearly three times more likely to have caries in the permanent teeth (RR = 2.6,95% CI = 1.4 - 4.7, P < 0.001). The highest sensitivity (93.9%) for prediction caries in the permanent dentition was found in caries presence on any of the eight primary molars, for which the relative ratio was 3.3 (95% CI = 1.8 - 6.1, P < 0.001) and the positive prediction value was 85.4%. CONCLUSION: The study determinate clearly that caries status in the primary teeth can be used as a risk indicator for predicting caries in the permanent dentition.

Original languageEnglish (US)
Pages (from-to)279-281
Number of pages3
JournalZhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology
Issue number4
StatePublished - Jul 2003


ASJC Scopus subject areas

  • Medicine(all)

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