Hi! If whitening toothpastes haven’t worked, the discoloration may be internal or due to enamel thinning. In such cases, toothpaste alone won’t help. Please avoid home remedies like lemon, baking soda, or charcoal — they can damage the enamel and make sensitivity or discoloration worse. It’s best to visit a dental clinic for proper treatment. Options like professional teeth whitening or veneers give much safer and longer-lasting results.
Answered2025-07-09 09:53:43
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