When you have your teeth bleached in a dental office, the results almost seem like magic. Let's push aside the magician's cape and see what is really happening in professionally-applied, in-office tooth whitening.

How do teeth become discolored?
A tooth's enamel covering is mostly composed of mineral crystals. At a microscopic level, you can see a framework or matrix of organic (living) matter interspersed between the crystals of enamel creating a very irregular surface capable of retaining stains. Chromagenic (color generating) organic compounds can become part of this organic matrix resulting in tooth staining. They can be bleached without affecting the mineral structure of the tooth's enamel.

As people get older and their teeth wear, the enamel loses its youthful translucency and the underlying layer, called dentin, thickens and becomes more yellow. Such changes to the actual tooth structure are called intrinsic staining. Other causes of intrinsic discoloration are exposure to high levels of fluoride or tetracycline antibiotic administration during childhood, tooth decay, or root canal problems, among others. Discoloration can also be caused by external staining from certain foods, drinks, or tobacco products. Such surface stains are called extrinsic staining.

Behind the Magic
Materials used for tooth bleaching are hydrogen peroxide and carbamide peroxide. Peroxides are commonly used as bleach, and you may have seen them used as hair bleaches, for example. Hydrogen peroxide is a strong oxidizing agent that attacks the organic molecules responsible for tooth discoloration, bleaching them until they lose their color. Carbamide peroxide also contains urea, which is a compound that permits the peroxide to remain in contact with the teeth for longer amounts of time without harming them.

Often called power bleaching, the in-office technique uses a high concentration of peroxide solution (35-45% hydrogen peroxide), placed directly on the teeth in the form of a gel. A heat or light source may enhance the peroxide release. The gel is applied with trays custom fitted to your mouth, and specific barriers are applied to protect sensitive gum tissue from the solution. Results show teeth becoming up to ten shades lighter in about an hour.

In-office bleaching under the supervision of my staff and me is recommended if you have severely stained teeth, and particularly if you are about to have veneers or crowns made. It's a way to rediscover the pearly translucency of your youthful smile.

Contact us today to schedule an appointment to discuss your questions about tooth bleaching. You can also learn more by reading the Dear Doctor magazine article “Teeth Whitening.”

Your smile is one of the first things people notice, but if your pearly whites have lost their luster, chances are you might be hesitant to show them. As we age, our teeth naturally darken, and certain substances can leave teeth stained or discolored, making you appear older. One easy way to turn back the clock is to have your teeth whitened; a safe, painless, and non-invasive way of achieving a young, healthy-looking smile.

Causes of Tooth Discoloration: Exposure to high-levels of fluoride and taking tetracycline antibiotics during childhood can stain the teeth's structure. Smoking cigarettes and using chewing tobacco can also cause tooth discoloration, as well as foods containing tannins such as red wine, coffee and tea. In addition, poor brushing techniques and not flossing regularly cause bacteria to build on teeth resulting in yellow stains.

The Whitening Process: Our office can help you to achieve a brighter smile using either an in-office procedure or an at-home whitening kit. We can help determine the best treatment for your budget, time frame and individual needs. If you choose to have professional whitening done in our office, we will utilize a prescription strength gel sometimes even activated by a concentrated light source. This procedure offers immediate and long-lasting results in less than an hour. After a single treatment, teeth are typically six to ten shades lighter and with proper maintenance, can last five years or longer.

At-Home Results: For those seeking more gradual results, another option is to use custom-fit trays, which our office will make for you to use at home to whiten your teeth. This is generally less expensive, and is very effective at lightening teeth several shades, although it may take a week or longer to see optimal results.

Choosing the Best Procedure: For some people, teeth whitening may not offer adequate results. If you have thin enamel, chipped, uneven or crooked teeth, we may recommend applying porcelain veneers to restore your damaged teeth. Veneers are bonded to the front of teeth to give your smile a straighter, more uniform appearance.

Contact us today to schedule an appointment to discuss any questions you may have regarding teeth whitening. Read more about this topic in the Dear Doctor magazine article “Teeth Whitening: Brighter, Lighter, Whiter.”

Vanna White has been a household name for the last 27+ years and is best known as the first female co-host of the game show, Wheel of Fortune. She radiates a warm, friendly, down-home appeal and says when describing herself, “what you see is what you get!” While this is quite true, there is so much more to her. She has received a star on the famous Hollywood Walk Of Fame, has starred in an NBC movie and written a book. She is even featured in The Guinness Book of World Records as TV's most frequent clapper, and most recently started her own line of yarn called Vanna's Choice with half of the proceeds going to St. Jude Children's Research Hospital. And while any one of these accolades could serve as the highlight of a lifetime for most, for Vanna they fall slightly short. Her favorite job is being mother to her son, Nicholas, and daughter, Giovanna.

The following are excerpts taken from an exclusive interview in Dear Doctor magazine, the premier oral healthcare resource for patients and consumers.

What is the secret to her dazzling smile?
Vanna's oral healthcare routine is the same today as it has been since her childhood — and one everyone can follow. She brushes her teeth at least twice a day (morning and at bedtime) and flosses her teeth daily. She also has strong feelings about flossing. “I think that flossing is the most important thing. I believe that dental floss helps a lot as it keeps your gums strong and looking younger.”

What about bleaching, has she done it?
Absolutely! Vanna bleaches her teeth once or twice a year to help retain her naturally white teeth and to offset any discoloration from coffee and an occasional glass of red wine. “I have done over-the-counter and professional bleaching, but I do like the trays my dentist made because they fit perfectly.” She also states, “Anything you can do professionally is probably better because I would assume that a dentist's ingredients are stronger than over-the-counter products.”

Has she had any cosmetic dentistry?
When it comes to answering a question about cosmetic dentistry, Vanna is just as open and honest as she is about everything else — a trait for which she is known. “I had a bridge put in probably 30 years ago, where I had a tooth pulled and there was a space. And I did have a little tiny chip on one of my front teeth years ago that my dentist fixed. But that is it. Again, I feel very fortunate to have good teeth. The braces [from her childhood] straightened them out and there has been no need for any cosmetics since then.”

Does she do anything to protect her teeth?
While she admits to occasionally forgetting to use her nightguard, a protective mouthguard worn during sleep, she firmly believes in their need. “I do sleep in a nightguard because I grind my teeth. I have a filling in the back that probably has been filled five times from grinding.” She added, “Both of my children do have mouthguards that they wear for their sports.”

Want a smile like Vanna's?
Contact us today to schedule an appointment or to discuss your questions about bleaching, cosmetic dentistry or mouthguards. You can also learn more about Vanna by reading the entire interview in the Dear Doctor article, “Vanna White — The Smile Defining America's Favorite Game Show — Wheel Of Fortune.”