Caries and periodontal disease
The cause is
Although it is a fungus
The fungus lives in
It’s in the slime.
Drainage outlet, bottom of ship, bath, etc.
The slime in is also a biofilm.
Biofilms are like a fungus town
Become a nutritional and bed and cooperate with each other
Resist each other and resist the flow of medicine and saliva
So that the bacteria can live safely
It is organized.