Before you select any method of obtaining a whiter smile, you need to begin with good dental hygiene. The first step in doing this is purchasing a long life toothbrush and making certain that you brush your teeth at least two times a day.
Once you have started doing this, you can consider which products will be the best tooth whiteners for you. If you have a severe discoloration of your teeth, you may need to consider laser tooth whitening in order to restore the proper color to your teeth. Limiting how much coffee and other staining products you drink can help eliminate future discoloration of your teeth. If your teeth are not terribly discolored, a product like Crest White Strips can help you get a whiter smile within a shorter period of time.
However, you must never forget that good dental hygiene is the foundation for having a white, healthy smile. One question that must be addressed is "Does the white fade after tooth whitening?" If you do not take the time and care to brush your teeth and maintain good dental hygiene, then yes, the white will fade. If you do take the time, any fading that occurs will be minor, as the enamel on the tooth will not suffer the same way as it did prior to being dyed back to white. With care and diligence, you can get and keep the white smile that you have always wanted.