Over time, your teeth can go from white to not-so-bright for a number of reasons:
🍇 Food and Drinks 🍸
Coffee, tea and red wine are some major staining culprits. Add curry sauces, pasta sauces, berries or other fruits and you have your list of stain builders.
🚬 Tobacco Use
Two chemicals found in tobacco create stubborn stains: Tar and nicotine. Tar is naturally dark. Nicotine is colorless until it’s mixed with oxygen. Then, it turns into a yellowish, surface-staining substance.
Below the hard, white outer shell of your teeth (enamel) is a softer area called dentin. Over time, the outer enamel layer gets thinner with brushing and more of the yellowish dentin shows through.