Laser Teeth Whitening Side Effects
The chemicals used for laser tooth whitening can potentially leave your teeth sensitive for up to 48 hours after the procedure. They may (or may not!) be mildly irritating.
Who shouldn't use it: Laser whitening only works on natural tooth enamel and can't lighten dentures, crowns, or veneers. (Don't even try; you'll be left with an unevenly colored smile.) Women who are pregnant, especially in their first trimester, should talk to their dentist before having laser teeth whitening. If your teeth are extremely sensitive, the treatment may be uncomfortable.
Drawbacks: Your teeth may be sensitive after laser tooth whitening. It is recommended that you avoid ingesting foods and drinks that are considered "staining" for up to 24 hours, though sipping on a can of cola shouldn't offset the results of the procedure.
Recovery Time For Laser Teeth Whitening
Peroxide based solutions can increase your tooth's sensitivity to hot and cold temperatures for up to 48 hours afterward, though it could also have no effect.
After care for laser teeth whitening: Care for your teeth as you would on a normal basis. Brush twice daily, preferably with a fluoride toothpaste to counter any possible increased sensitivity from the procedure. (Sensodyne is a good choice if your teeth become at all sensitive.)
Although teeth are especially porous during the laser whitening procedure, a fluoride rinse helps close the pores, reducing them to their original size. Still, for the best results, it may be useful to avoid particularly heavily staining activities, like cigarettes and red wine, for up to 24 hours after the treatment.