Maybe: If you are using an abrasive tooth paste it might make them whiter, by abrading away tooth structure. Scrubbing hard is never recommended as this can also cause enamel erosion if you brush too soon after eating or drinking anything acidic (and yes punch and gatorade are acidic) you can erode away enamel best bet is to see your dentist to see if you situation can be handled non invasively.
Answered 11/28/2017
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