Some foods can help: crispy apples and celery slightly polish surfaces; while not a substitute for whitening
https://codydjku752.trexgame.net/foods-that-discoloration-your-teeth-and-how-to-battle-them
Some foods can assist: crispy apples and celery mildly polish surface areas; while not an alternative to whitening, they support a cleaner, brighter-looking smile.