Your wedding is coming up and you want your smile to be it’s brightest. Or maybe you have an important speaking engagement. Whatever the reason, tooth bleaching isn't just for movie stars, and it isn't just for one day. Many people have had their teeth bleached, and probably millions more are thinking about it. The desire for a brighter smile with whiter teeth is very strong, and tooth bleaching safely lightens the color of the teeth, lasting up to five years. The most effective and safest method of tooth bleaching is dentist-supervised.
Is bleaching for you?
Generally, bleaching is successful in at least 90 percent of patients, though it may not be an option for everyone. Consider tooth bleaching if your teeth are darkened from age, coffee, tea or smoking. Teeth darkened with the color of yellow, brown or orange respond better to lightening. Other types of gray stains caused by fluorosis, smoking or tetracycline can be lightened, but results are not as dramatic. If you have very sensitive teeth, periodontal disease, or teeth with worn enamel, your dentist may discourage bleaching.
First, your dentist will determine whether you are a candidate for tooth bleaching and what type of bleaching system would provide the best results. The best results are achieved with an in-office bleaching system using a laser or plasma arc light while you sit in the dental chair. Sometimes, best results are seen after two or three in-office sessions. This is sometimes done in combination with dentist-supervised at-home bleaching and requires impressions of your mouth.
The dentist or hygienist will then fabricate a mouthguard appliance for you. The mouthguard is custom made for your mouth and is lightweight so that it can be worn comfortably while you are awake or sleeping. The mouthguard is so thin that you should even be able to talk and work while wearing it. Along with the mouthguard, you'll receive the bleaching materials. You'll be given instructions on how to wear the mouthguard and use the bleaching materials with it. The newest at home bleaching systems recommend bleaching your teeth for two individual 15 minute sessions per day for two weeks.
How long does it last?
Lightness should last from one to five years, depending on your personal habits such as smoking and drinking coffee and tea. At this point you may choose to get a touch up. This procedure may not be as costly because you can probably still use the same mouthguard. The retreatment time also is much shorter than the original treatment time.
How does it work?
The active ingredient in most of the whitening agents is carbamide peroxide. When water contacts this white crystal, the release of hydrogen peroxide lightens the teeth.
Is it safe? Are there any side effects?
Several studies, during the past five years, have proven bleaching to be safe and effective. The American Dental Association has granted its seal of approval to some tooth bleaching 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. The success rate depends upon the type of stain involved and your compliance. Bleaching can provide a very dramatic improvement in your smile when done properly under a professionals care. Bleaching does not lighten artificial materials such as white fillings, bonding, porcelain, or crowns. However, once your smile has whitened, you can have these drab artificial fillings resurfaced to match their new whiter surroundings.