Early childhood caries (ECC) continues to be the biggest oral health problem in developing countries. Several studiesreport ECC prevalence in children aged 3 years from 40% to 65.7% and in children 5 and 6 years of age up to86%. There are multiple risk factors associated with ECC, such as: cariogenic diet, poor oral hygiene, low salivaryflow, low parental socioeconomic status, low parental education, etc. But there is also a “mode of delivery” factorthat is not being considered and could be important and determinant for the occurrence of ECC.Objective: To determine if there is an association between the mode of delivery and the presence of ECC in childrenaged 2 to 5 years of the Maternal and Child Health Center Pachacutec PERU-KOREA, DIRESA CALLAO2016.Materials and Methods: An observational, descriptive, cross-sectional and prospective study was conductedwith children attending the PERU-COREA Maternal and Child Health Center (n=125) during September to Decemberof 2016. A validated questionnaire was used for socio-demographic characteristics and risk factors forECC. An intraoral clinical examination of the children was also performed.Results: The prevalence of ECC in the sample evaluated was 60%. A statistically significant association wasfound between the mode of delivery and the presence of ECC (p <0.001), as well as the covariables oral hygieneindex, frequency of carbohydrate consumption, type of lactation, bottle feeding at night and education of themother, all with a p <0.005. Conclusion: Children born by cesarean section are more at risk of ECC than childrenborn by vaginal delivery
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