Smoking can cause teeth to gradually stain to become grey or yellow
Effects of smoking on your teeth and gums
Smoking is one of the worst offenders when it comes to staining teeth. Tobacco causes brown stains that penetrate the grooves and pits of tooth enamel. The longer you smoke, the more entrenched the stains become. Smoking can also cause bad breath and gingivitis (gum disease). The effects of tar and nicotine from smoking can lead to staining and increase in tartar deposits.