Anatomy and conditions
Plaque
Also called biofilm
A sticky film of bacteria that forms on teeth and causes decay and gum disease if not removed.
Plaque is a soft, sticky layer of bacteria that builds up on teeth throughout the day. If it is not brushed and flossed away, bacteria make acids that damage enamel and irritate the gums. Plaque left in place hardens into tartar, which only a professional can remove. Patients often ask about it at checkup, and it is the main reason for regular home care.
Example at the front desk
The hygienist showed him where plaque builds up and gave him a flossing tip sheet.