Whitening kits that include lights are popping up all over the retail market. Dentists take special care to make sure the peroxide bleaching solution stays on the teeth and away from the gums and lips.īecause of these safety concerns, these strong chemicals and the use of UV and halogen lights for teeth whitening should be left to professionals at a dental practice. The solutions allowed at the dentist’s office are much stronger than those in store-bought products. However, if patients experience problems during whitening, it is much more likely to be because of the strong chemicals used rather than the light source. Dental technicians, as well as their patients, should use protective eyewear during treatment. It can cause sensitivity or even mild burns on the lips, gums, or tongue.Ĭare must also be taken to protect the eyes while using UV light. UV instruments are powerful and applying the light for too long or directing it in the wrong spot can damage soft tissues. Teeth Whitening Hazards to Watch ForĮven though cancer is not considered a valid concern, there are some other risks associated with UV light teeth whitening. They continue to include it as part of the teeth whitening process. Most dentists and dental product manufacturers feel that light does make a difference. A study conducted by the National Center for Biotechnology Information concluded that while light showed some enhanced results compared to cases using only chemicals, the difference was not “statistically significant.” Several over-the-counter whitening products have begun including a blue light device with their kits.Īlthough there is widespread use of light for teeth whitening, there is some debate about how well it works. It activates the molecules without radiating heat. More recently, LED blue light has become popular.
Products like Zoom! whitening uses this method. They produce heat to accelerate the process. UV and halogen lights were the first types to be used by dentists for this purpose. Applying light as an extra step activates the molecules in the bleaching agent, with the goal of a faster, longer-lasting change in color. Hydrogen peroxide or carbamide peroxide solutions are what get rid of stains and lighten teeth. UV, halogen, or LED light by itself does nothing to whiten teeth. The Science Behind UV Light Teeth Whitening This is especially true when whitening without a dentist’s supervision. But, while cancer is not a concern, there are other reasons to be careful when using whitening tools both with and without light. Patients will be relieved to learn that there are no studies showing that light used for teeth whitening causes cancer. Could UV light teeth whitening cause cancer too?
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After all, exposure to ultraviolet radiation, or UV light, is cited by the American Cancer Society as contributing to skin cancer. Because some curing lights use UV technology (others are halogen or LED), some people wonder if they are safe. Along with a bleaching agent that is applied to the teeth, an instrument called a curing light is moved over the teeth to help activate the chemicals. Teeth whitening at the dentist, or even with some at-home kits, is often a two-part process.
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