01/16/2009 Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S658-659; text as passed Senate: CR S658-659; text of measure as introduced: CR S656) (All Actions)
Coffee and Tea Effects on Teeth. Coffee and tea are especially tough on teeth, because tannic acid scrapes into the pits and grooves of tooth enamel and can stain teeth. The amount of coffee a person consumes daily does affect the color of their teeth.
If you like a strong cup of black coffee, your dentist has probably told you it is doing your teeth no favours. But new research suggests that drunk in moderation, coffee can actually stop tooth decay. Brazilian scientists have found that a certain type of coffee bean has an anti-bacterial property.