Dentist Explains the 7 Biggest Reasons Teeth Turn Yellow — And How to Keep Your Smile Bright

Frequent consumption allows these pigments to build up gradually, creating a yellow or brown appearance on the surface of teeth.

Drinking water after consuming these beverages and using a straw when appropriate may help reduce staining.

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3. Smoking and Tobacco Use

Dentists consistently identify tobacco as one of the leading causes of severe tooth discoloration. Nicotine and tar can penetrate tiny pores in tooth enamel, leaving yellow, brown, or even darker stains.

Long-term smokers often experience discoloration that becomes increasingly difficult to remove with ordinary brushing.

4. Poor Oral Hygiene