The function of tea to our dental care China is first country which cultivated and drank tea in the world.Since the ancient times we have drinking tea.
The function of tea to our dental care China is first country which cultivated and drank tea in the world.Since the ancient times we have drinking tea.
Black tea, a Southern staple and the world’s most consumed beverage, may contain higher concentrations of fluoride than previously thought, which could pose problems for the heaviest tea drinkers, researchers say.