After more than a decade of research, bleaching and other whitening methods are both safe and effective. Several products currently on the market do not show adverse effects on teeth or gums in a large number of clinical and laboratory tests. Be sure to look for clinically certified products, follow the instructions and consult your dental professional.
In the past, the higher the bleach concentration used for office treatment, the higher the sensitivity. However, bleaching gels today have a good buffer and reduce sensitivity. People may experience sensitivity after whitening procedures, especially when they eat hot or cold food, but usually disappear after 48 hours and stop completely when treatment is stopped.
If you do experience sensitivity, there are several ways you can help eliminate it:
If using a tray applicator, please shorten the tray for a short period of time
Brush teeth with sensitive teeth containing potassium nitrate to help relieve nerve endings
Ask your dentist or pharmacist about fluoride-containing products that will help remineralize your teeth. Brush or put on your tray four minutes before and after tooth whitening
Stop whitening your teeth for several days and let your teeth adapt to the whitening process. Sensitivity will stop within 24 hours. The longer you whiten your teeth, the lower the sensitivity you will feel
In a few cases, the dentist may prevent the teeth from bleaching:
If you suffer from gum disease, enamel caries, cavities or particularly sensitive teeth
If you are pregnant or nursing
If your teeth have tooth-colored crowns, teeth caps or other dental work, you cannot bleach
