Introduction: Periodontal diseases are among the leading causes of premature tooth loss in adults, but the microbiota associated with this problem is established over time in childhood.
Aim: This longitudinal study aimed to verify the occurrence of periodontal pathogens in the oral cavity of children aged six, twelve, eighteen and twenty-four months through PCR quantification, correlating them with the oral microbiota of their mothers.
Study Design: Saliva and oral biofilm samples were collected from mothers and children by using sterilized paper points. Furthermore, a questionnaire was applied in all periods to evaluate hygiene and dietary habits.
Results: A positive correlation was found between mother-child pairs in all periods. No correlation was observed between hygiene and dietary habits and occurrence of periodontal pathogens.
Conclusion: Early inclusion of children in preventive and biofilm control programs could contribute to preventing acquisition of aggressive pathogens.
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