There are a variety of teeth whitening systems available on the market. Some of the advantages and disadvantages of each system include:
Over-the-counter teeth whitening strips
Advantages: Easy to purchase, eventually whitens your teeth, and are initially cost-effective.
Disadvantages: Due to the nature of OTC whitening products, they are not custom-fit. This means the peroxide has the potential to get on your gums and spread everywhere. Additionally, strips don’t cover the entirety of your teeth, requiring the use of multiple strips each time. The peroxide concentration is also comparatively low compared to professional whitening products, requiring more time to achieve desired results.
Other over-the-counter methods (paint-on, etc.)
Advantages: Easy to purchase, initially provide cost-effective results, and will eventually produce white teeth.
Disadvantages: Due to the lack of trays or strips, the peroxide is not held against the surface of the tooth. You may also be at risk for swallowing more of the peroxide, similar to whitening strips. There also hasn’t been definitive evidence in order to prove overall effectiveness.