The mouth is one of the most densely populated microbial habitats in the body, home to more than 700 species of bacteria ... out the excess and clean between your teeth daily.

It's made of microorganisms (including bacteria and fungi), food particles, and your saliva. Although it’s normal for your mouth to produce dental plaque, it’s important to keep your teeth ...

Bacteria in your mouth may be linked to an increased risk of dementia, experts find Certain bacteria found in people's mouths may be linked to changes in brain function as you age, experts have said.