Unless you are a microbiologist, you probably don’t want to think about all of the things that are happening in your mouth right now. 

One thing you share with microbiologists is incomplete knowledge regarding what determines the specific types of microorganisms that live there. Is it genes that decide who lives in your microbial village, or your environment? In a new paper, researchers contend that environment plays a much larger role in determining oral microbiota than biology, a finding that sheds new light on a major factor in oral health.


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