A study done in Chicago College of Dentistry showed that people who rinsed their mouths with black tea multiple times a day had less plaque buildup than those who rinsed with water. "Polyphenols in tea suppress the bacterial enzyme that triggers plaque accumulation," says Christine D. Wu, Ph.D., the lead study author.
Drinking black tea a few times a day also has the same effect!
Furthermore, a study conducted by researchers at Temple University School of Dentistry also demonstrated erosive effect of black tea was “relatively harmless” and “closely resembled” the tap water used as a control.
So, a DAILY cup of black tea can protect teeth from rotting and has no effect on the enamel!
- Cloverdale Dentist