Teeth whitening procedures are not permanent. In fact, most tooth whitening systems will only last for an estimated three to five years.
More Info: Teeth whitening procedures are often sought by patients who have discolored or yellowing teeth. Apart from the fact that a person’s biological makeup has an effect on the natural whiteness of teeth, contributing factors such as the build-up of surface stains caused by smoking, consuming coffee, red wine, and soft drinks cause the teeth to darken as well.
To remove surface stains that build up on the teeth, surface whiteners such as over-the-counter whitening products, toothpastes, and gels can be purchased. The permanence of the results of these surface whiteners however is limited to the amount of care and maintenance that is exercised over the teeth. If you go back to consuming food and drinks that cause surface stains, the build up on the teeth returns, thus causing the teeth to yellow again.
Bleaching is a tooth whitening procedure that actually changes the color of the teeth, going beyond just removing the surface stains. The dentist applies a bleaching gel on your teeth using a mouth tray, and a laser or heat is directed towards it. Although this is a more intensive treatment, bleaching is not permanent..
After undergoing a bleaching procedure as a whitening treatment, your teeth will not maintain the same whiteness you experienced immediately after the bleaching treatment. That is why maintenance treatments are highly recommended as well as refraining from returning the habits that caused your teeth to discolor originally.
Bird, Donnie , and Debbie Robinson. Torres and Ehrlich Modern Dental Assisting. 7th ed. USA: W.B. Saunders Publishing, 2002. Prin
“Teeth Whitening.” The Canadian Dental Association – L’Association dentaire canadienne. The Canadian Dental Association, 4 Oct. 2005. Web. 6 Sept. 2010. http://www.cda-adc.ca/en/oral_health/procedures/teeth_whitening/index.asp.