Teeth Whitening FAQ

How can you brighten your smile?

Many people have had their teeth whitened, and probably millions more are thinking about it. The desire for a brighter smile with whiter teeth is common, and tooth whitening safely lightens the color of the teeth, lasting for up to five years. The most effective and safest method of tooth whitening is dentist-supervised.

We offer several options including take-home whitening kits and in-office whitening procedures.

Is whitening for you?

Generally, whitening is successful in at least 90 percent of patients, though it may not be an option for everyone. Consider tooth whitening if your teeth are darkened from age, coffee, tea or smoking. Teeth darkened with the color of yellow, brown or orange respond best. Other types of grey stains caused by fluorosis, smoking or tetracycline are lightened, but results are not as dramatic. If you have very sensitive teeth, periodontal disease, or teeth with worn enamel, your dentist may discourage whitening as those conditions could cause more problems during the procedure.

What’s involved?

First, the dentist will determine whether you are a candidate for tooth whitening and which type of procedure would provide the best results.

If you’re in a hurry for whiter teeth, you may decide to have your teeth whitened in the office. Your dentist will use either an in-office whitening system or light-assisted whitening while you sit in the dental chair. Some patients choose dentist-supervised at-home bleaching, which is more economical and provides the same results with a longer treatment time.

At the next appointment the dentist or hygienist will make impressions of your teeth to fabricate a custom tray appliance for you. The tray is made for your mouth and is lightweight so that it can be worn comfortably while you are awake or sleeping. The appliance is so thin that you should even be able to talk and work while wearing your tray. You will be given instructions on how to wear the appliance and apply the whitening gel.

Some whitening systems recommend using trays from two to four hours a day. Generally this type of system requires two to three weeks to complete, and works well on patients with sensitive teeth. Other systems recommend whitening at night while you sleep and usually require only 10-14 days to complete.

How long does it last?

Lightness should last from one to five years, depending on your personal habits such as smoking and drinking coffee, red wine, and tea. At this point you may choose to get a touch up. The retreatment is much shorter than the original treatment time and the same trays and whitening gel is used.

How does it work?

The active ingredient in most of the whitening agents is hydrogen peroxide or carbamide peroxide, both offered in various concentrations. When the whitening agent is in contact with the tooth, the tiny “pores” absorb the chemical and change the color of the enamel, leaving the structure intact.

Is it safe? Any side effects?

Several studies, during the past five years, have proven whitening to be safe and effective. The American Dental Association has granted its seal of approval to some teeth whitening products. Some patients may experience slight gum irritation or tooth sensitivity, which will resolve when the treatment ends.

What are realistic expectations?

No one can really predict how much lighter your teeth will become. Every case is different. Typically, there is a two to four-shade improvement as seen on a dentist’s shade guide. The success rate depends upon the type of stain involved, the porosity of the tooth enamel, and your compliance. Bleaching does not lighten artificial materials such as resins, silicates or porcelains.