Teeth whitening is a simple process. Whitening products contain one of two tooth bleaches (hydrogen peroxide or carbamide peroxide). These bleaches break stains into smaller pieces, which makes the color less concentrated and your teeth brighter.
Some people who use teeth whiteners may experience tooth sensitivity. This happens when the peroxide in the whitener gets through the enamel to the soft layer of dentin and irritates the nerve of your tooth. In most cases the sensitivity is temporary. Overuse of whiteners can also damage the tooth enamel or gums, so be sure to follow directions and talk to your dentist.
“Whitening: 5 Things to Know About Getting a Brighter Smile.” Mouth Healthy TM, 2018, httpss://www.mouthhealthy.org/en/az-topics/w/whitening.
Brought to you by Mouth Healthy by American Dental Association.