There are two types of tooth stains - intrinsic (internal stain) and extrinsic (external stain). Intrinsic stains occur from within the tooth, and cannot be removed by brushing and flossing; bleaching may also not be effective. Some causes of intrinsic staining occur from tooth injury, certain medications

Whitening procedures have effectively restored the smile of people with stained, dull, or discolored teeth. The darker tissue of your teeth, the dentin, can become exposed as the outer layer of enamel is worn away by the effects of aging or things like caffeine and tobacco. Food particles are naturally

Whitening procedures have effectively restored the smile of people with stained, dull, or discolored teeth. The darker tissue of your teeth, the dentin, can become exposed as the outer layer of enamel is worn away by the effects of aging or things like caffeine and tobacco. Food particles are naturally

Whitening procedures have effectively restored the smile of people with stained, dull, or discolored teeth. The darker tissue of your teeth, the dentin, can become exposed as the outer layer of enamel is worn away by the effects of aging or things like caffeine and tobacco. Food particles are naturally

Whitening procedures have effectively restored the smile of people with stained, dull, or discolored teeth. The darker tissue of your teeth, the dentin, can become exposed as the outer layer of enamel is worn away by the effects of aging or things like caffeine and tobacco. Food particles are naturally