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| Association between black tooth stain and primary dentition caries of preschool children in Wenzhou |
| Department of Pediatric Dentistry, Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027 |
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WANG Xiping,CHEN Wenbo,MEI Liqin. Association between black tooth stain and primary dentition caries of preschool children in Wenzhou[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2015, 45(8): 615-.
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Abstract Objective: To investigate the prevalence of black stain among 5-year-old children in Wenzhou and to assess a possible association between black stain and early childhood caries (ECC). Methods: This cross-sectional study was carried out in six public kindergartens in Wenzhou, China. The study consisted of 718 5-year-old children. Caries statuses of dmft and dmfs were assessed by one calibrated dentist using WHO criteria and black stain was evaluated by the same dentist. x2 test was used to compare the difference of the prevalence of caries between the children with black stain or not. Mann-Whitney U test was used to compare the difference of dmft and dmfs between the children with black stain or not. Results: Black stain was observed in 17.6% of this population. The prevalence, dmft and dmfs of children with black stain were 53.2%, 2.02 and 3.79, fewer than children without black stain (73.1%, 4.45 and 10.14, P<0.05). Conclusion: There is a negative correlation between black stain and caries.
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Received: 04 January 2015
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