Over the past few years, teeth whitening has become increasingly popular among dental patients of all ages. This is especially true since over-the-counter whitening products have become available at affordable prices. If you decide to whiten your teeth, there are several products to choose from:
• Over-the-counter tray-based products: Tray-based products were among the first over-the-counter teeth whitening methods. These products come with a tray designed to fit anyone’s mouth and a whitening gel. Most will require that you spend at least two hours a day for several weeks before you see results.
• Whitening strips: This popular method for whitening your teeth requires that you apply strips twice a day, usually for a 14-day period.
• Whitening gels: There are several brands of gels available over-the-counter. These are products that you simply apply directly on your teeth. Just as is the case with strips, you’ll usually need to apply the gel twice a day for two weeks to see maximum results.
• Professional whitening: Without a doubt, the most effective way to whiten your teeth is with products that are available only through your dentist. He or she can talk to you about which type of product is best for you. You can choose to either have your teeth whitened in your dentist’s office or to have impressions of your teeth made that are used to create custom-made trays you can take home. If you choose the latter option, your dentist will provide a whitening agent that you can use with your trays at home any time you’d like.
Resource: http://www.webmd.com/oral-health/teeth-whitening