Teeth whitening is not for everyone. Pregnant or lactating women should avoid it. So should anyone younger than 16. If you have allergies or sensitive teeth, your teeth may become more sensitive, or your allergies may be aggravated by teeth whitening.
You should avoid teeth whitening if you have worn enamel, exposed roots, gum disease or cavities. You may do further damage by whitening with these dental issues. Uneven whitening can occur with crowns, fillings and other restorations.
Teeth whitening is meant to bring teeth back to their natural appearance and not a shocking white.
Begin any whitening regimen with a realistic expectation says Dr. Cherukuri from her Chino, California dental practice
Teeth that are darkly stained, may not become as white as you would like them. Purple or gray-stained teeth tend to not respond well. Brown discoloring tends to not respond well, either.
Also get to know the whitening product being used. Stay away from scratchy and abrasive OTC polishers- they simply work by mechanically removing the outer layer which wears away enamel.
“The In Office whitening products yield the best results because of a higher concentration of the oxidizing agent used and more importantly, there is a trained chairside to monitor and modify the process to achieve maximum whitening while limiting the sensitivity” adds Dr. Cherukuri.