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Let me relate to you the following pertinent information...not everyone's teeth will whiten significantly. If you have a lot of existing fillings on your teeth or crowns (neither of which will be changed by bleach) you will never notice a significant change. If your teeth became dark due to medication (i.e. tetracycline) you took as a kid when the teeth were forming, it may take a long time to see any notiocable difference. As far as OTC methods are concerned, the best is Crest Whitestrips. They are inexpensive and very effective. Just a few concerns.....they are relatively small and only cover from your eye tooth to your eye tooth. you have to adapt them well to your teeth if you want them to bleach evenly and this may be difficult if your teeth are crooked. Finally, depending upon your coffee, cola, tea and red wine intake, as well as cigarrete smoking habits and your personal preferences, you will have to repeat the process every 6 months to 2 years. A better option would be to go to your dentist and get a custom fit flexible tray which you fill with bleaching gel and leave in your mouth for about 2 hours a day for about two weeks. This will give the most effective and predictable results. Initially it is more expensive (In my office $200/per arch vs $80 for the Whitestrips) but assuming you dont lose the custom fit tray, you can buy a refil of the bleaching gel for about $25. All methods of bleaching will make your teeth sensitive for the two weeks that you are bleaching your teeth. Hope this helps
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