How can I whiten the teeth, How to Whiten Teeth, Whitening Toothpaste, Teeth Bleaching Whitening Thehealthtime.com Do you think your teeth are not quite as white as they should be? There are many reasons why teeth lose their “whiteness”. It happens naturally as the mineral structure of your teeth changes over time and as the enamel becomes less porous. Teeth can also become discolored by smoking, coffee drinking, and even some antibiotics. Steps Prevention1Avoid...