These are clear gels that contain a good concentration of peroxide- that main ingredient that facilitates teeth whitening. These gels are often applied to the surface of the teeth with the use of a small brush. Most of the gels that are available in the market will call for you to apply these gels at least twice a day and this should go on for the next 2 weeks. So you want shiny white teeth in a snap? Well you cannot get this from the many teeth whitening services available right now in the market. It takes time to get the desired results. And also do remember that if you are not helping yourself (think: smoking) then there is a big chance that the results will be delayed and may be minimal. Again, the longevity of the process will ultimately depend on the manufacturer of the product or the whitening formulation. The moment that the intended shade of white has been achieved, then the teeth will be rinsed with water. And the use of toothpaste will be recommended. This is needed so that the person will not experience sensitivity. For this a different procedure may be taken. Aside from those mentioned above, in-office whitening could be conducted with basically the same procedure. The teeth will be prepped by cleaning away the debris, dirt and plaque that have accumulated in-between and on the teeth. After that, a dental exam is conducted to check for cracks, tooth decay and gum problems. The services will vary to address different needs and preferences and the costs are minimal as well thus making these professional services easy for many people interested to improve the quality of their smile. In today's dental cosmetic market, the most popular procedure is called the laser tooth whitening. Teeth whitening products normally have counter indications printed at the label. Veneers, crowns and fillings and some repairs to the tooth will not be bleached. It will always retain its color. If these are present in the range that show when a person smiles, chances are whitening the teeth through the do it yourself regimen will result to uneven teeth color.