Best dental clinic in 200 feet radial road - Amethyst Dental & Aesthetics from Kovilambakkam. Teeth Whitening Possible Causes: * Food & Drinks: Beverages like tea, coffee, and wine have pigments that bind to tooth enamel. * Smoking: Tar in cigarettes causes a brownish discolouration. * Poor Oral Hygiene: Inadequate brushing or flossing allows plaque buildup, contributing to discolouration. * Ageing: Over time, enamel thins and more of the yellowish dentin shows through. Contact us Amethyst Dental & Aesthetics