How much do dentists usually charge for micro abrasion for white teeth stains after braces?

I did not take anything seriously when young and now I am regretful. It is best to get braces during college and not middle school take that as a hint newbies. I need around 6-10 teeth micro abrasion. I do not think it is covered by insurance due to cosmetology. So... I want to know how much I should save to pay. Thanks

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