For this approach, gels are used and these gels do contain some peroxide-based formulations. And the use of the gels is complemented through the use of the lasers to facilitate the whitening process. You can consider this option as one of the most expensive solutions towards white teeth. You will need to have at most four treatments to get the results that you want, and each treatment will cost you at least $600. For minor teeth issues of the teeth, the composite white filling can be used. For example for cracked and chipped teeth, this can be used. The filling is typically composed of the composite resin material which is bonded to the tooth so that the gap can be addressed. But for major teeth issues like wear and discoloration, then the porcelain veneers can be used as the answer. This can be used before and after using the teeth whitening toothpaste. The use of this product will limit the sensitizing effects. What are listed above are some things that should be kept in mind when looking for a teeth whitening toothpaste. This is totally different from your ordinary toothpaste, and as such shopping for the product requires special considerations as well. What it contains are silica for example and some aluminum and calcium that will be enough to remove stains but not really to counter the natural discoloration of the teeth as it ages nor does it contain substances that react with the mineral structure to whiten a dark colored teeth. Second, most tooth bleaching agents such as gurgles and gels contain peroxide. Although hydrogen peroxide is usually the bleaching agent used in in-office procedures it could also be used at home for those who do not have hypersensitivity in the gums or in the teeth. For most practices though Carbamide peroxide is used for home whitening kits. Carbamide peroxide although slower acting also works very much like a hydrogen peroxide. But the main intent of this product is primarily for teeth whitening and this is because of its main ingredient- the hydrogen peroxide. Just like the ordinary mouthwash, you just need to swish the waster around the mouth for the next 60 seconds, and this should be done at least twice a day. Use this product for the next 12 weeks and you will see the results that you are looking for.