There's something about a big smile. Especially a big smile that shows beautiful white teeth. A bright white smile says "healthy", and admit it, people with beautiful white teeth somehow even look happier. A whiter smile can make a person more confident and outgoing in social situations. Unfortunately most of us don't have the whitest smile that we could. Years of drinking dark colored beverages such as coffee, tea, soda, and red wine, smoking, and aging take their toll on the color of tooth en.