Both green and black teas contain compounds called polyphenols that interact with the bacteria that causes plaque. These polyphenols either kill or suppress bacteria, preventing them from growing or producing tooth-attacking acid.
Green and black tea also contain cavity-fighting properties. So, drink one or two cups of green or black tea regularly, and use honey instead of sugar as a sweetener if needed. Choosing green tea will give you many other added health benefits.
8. Dark Chocolate
Dark chocolate contains cocoa, which contains tannin that helps prevent tooth erosion and decay by combating inflammation of the gums. Cocoa also reduces the growth of plaque and appears to lower acid production.
Dark chocolate can also promote blood circulation in the gums. Chocolate has many antioxidants and disease-fighting phenolic compounds that combat cell damage in the mouth and throughout the body. So enjoy a piece of dark chocolate several times a day.