
Why many toothpastes contain fluoride: what is it for?
The fluorinepresent in many toothpastes in concentrations of a few hundred parts per million, protects the enamel of our teeth making it more resistant to attacks by acidic compoundsthus preventing tooth decay. These are formed, for example, when bacteria normally present in the oral cavity (such as Streptococcus mutans) metabolize the sugars we ingest in the diet, transforming them into ...








