window of infectivity in pediatric dentistry

understand window of infectivity in pediatric dentistry quick and easy..
window of infectivity is the time of initial colonization of the infant’s oral cavity with streptococci mutans which causes caries.
there are two window of infectivity –
first window of infectivity is between 7-31 months
second window of infectivity is from 6 to 12 years

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click to watch early childhood caries, https://www.youtube.com/watch?v=VbfMQ…

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