Some foods can help: crunchy apples and celery mildly polish surfaces; while not a substitute for whitening

https://devinjdan182.cavandoragh.org/why-professional-whitening-is-safer-for-your-enamel-2

Some foods can help: crunchy apples and celery mildly polish surface areas; while not an alternative to whitening, they support a cleaner, brighter-looking smile.