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How to whiten your teeth without spending a lot of money
Try a tray or gel.
Trays and gels designed to whiten teeth can be purchased over the counter at most supermarkets or drug stores. Such methods are fairly effective , 80% of users reporting results.
Read the instructions on the gel and tray you purchase so you know exactly how the product should be used. Some trays should be worn for a few hours a day while others are worn every night.