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Study Shows Commonly Used Mouthwash Could Make Saliva Significantly More Acidic

March 4, 2021
by University of Plymouth


The first study looking at the effect of chlorhexidine mouthwash on the entire oral microbiome has found its use significantly increases the abundance of lactate-producing bacteria that lower saliva pH, and may increase the risk of tooth damage.

A team led by Dr Raul Bescos from the University of Plymouth’s Faculty of Health gave a placebo mouthwash to subjects for seven days, followed by seven days of a chlorhexidine mouthwash.

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