Many people in Bengaluru, India, find their teeth yellowing despite regular brushing. Dr. Shraddha Bahirwani, a senior consultant at Happiest Pearls, explains that tooth discoloration arises from various factors, including age, genetics, dietary habits, and lifestyle choices like smoking. Regular brushing alone cannot mitigate these effects. Diet plays a significant role; frequent consumption of aerated drinks, tea, coffee, and wine can lead to staining, while tobacco deposits stubborn stains that require professional cleaning. Environmental factors, such as fluorosis, particularly in regions with high fluoride levels in drinking water, also contribute to discoloration. Treatment options vary based on the underlying cause, with professional cleaning and bleaching effective for surface stains, while more severe cases may need cosmetic solutions like veneers or crowns. Preventive care, including regular dental check-ups and limiting staining foods, is essential for maintaining tooth health.