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Avoid rubbing acidic ingredients against your teeth.
You've probably seen natural remedies which tell you to mix acidic and abrasive ingredients before scrubbing the mixture on your teeth. Unfortunately, acidic ingredients wear away your teeth's enamel, which protects the teeth from cavities. Skip any home remedy that recommends rubbing these ingredients on your teeth:  Lemon juice Orange juice Apple cider vinegar Pineapple juice Mango juice