Teeth Whitening and Bleaching - Frequently Asked Questions

Teeth whitening, the most common cosmetic dental procedure, brightens or lightens teeth that are discolored or stained. Below are answers to frequently asked questions about teeth whitening, which is sometimes referred to as teeth bleaching.

What makes teeth become discolored?

Age, tobacco, coffee, tea, red wine, and some soft drinks are common causes of teeth staining. Some antibiotics, too much fluoride, and certain diseases can cause teeth to darken. Poor oral hygiene can also result in teeth staining.

What is chairside bleaching or whitening?

Cosmetic dentists perform chairside or in-office teeth whitening and bleaching in their offices. Treatments take 30 to 60 minutes, and you may need more than one treatment. The dentist starts by protecting your gums with a rubber shield or protective gel. He or she then applies a bleaching agent such as a peroxide gel to the teeth, possibly using a special light or laser to enhance the action of the bleaching agent. This is the safest form of tooth whitening and produces the fastest results.

What is dentist-supervised at-home tooth whitening?

Dentist-supervised at-home tooth whitening is the other type of professional tooth whitening treatment. A dental assistant takes impressions of your teeth, from which a clear plastic tray is made. You put a bleaching agent in the custom tray and wear the tray, which lets the bleach soak into the teeth. Your dentist monitors your progress.

Are some stains resistant to whitening?

Yes. Whitening may not lighten teeth if overexposure to fluoride, tetracycline antibiotics taken during tooth formation, or trauma caused the discoloration. Dental restorations, including tooth-colored fillings and caps, will not change color with tooth whitening.

Is professional bleaching permanent?

No. Your teeth will start staining again after treatment. Home maintenance can help the treatment last longer. However, even though they darken, your teeth will probably remain lighter than they were before the whitening.

What are the side effects?

The general health risks of bleaching are minimal, especially if supervised by a dental professional. Hydrogen peroxide, used for bleaching, can cause a temporary increase in the temperature sensitivity of the teeth. Over-the-counter bleaching products can wear away tooth enamel if not applied properly.

For more information about dental implants (implant dentistry), porcelain veneers, sedation and sleep dentistry, and more, be sure to visit our Newport News, Virginia cosmetic dentistry office.