San Francisco Dentist Tips for Teeth Whitening

A bright, white smile is highly prized in America, as you can see from any photo of celebrities in Hollywood. When they’re young, almost everyone has the gift white teeth, but this white hue can eventually fade and yellow over time. What causes this white color in the first place? The answer is: a coating of enamel. This protective material keeps food and bacteria from decaying your teeth. The enamel gets worn away over time, revealing the dentin underneath, which is a yellow color. Continue reading →