Gary L. Sandler, DDS & Bonnie E. Lipow, DDS
201 Moreland Road, Suite #8
Hauppauge, NY 11788
Long Island Cosmetic Dentists
BY MATTHEW SHULMAN
After years of grinding, chomping and chewing, your once-pearly whites may have seen better days. The gloss of lustrous white enamel has faded, exposing the natural yellow layer beneath. Add to that a lifetime's worth of pigments from coffee, tea, red wine and soda that have gotten lodged in tiny cracks in your teeth.
The result: that unattractive yellowish-brown tint that's made tooth whitening one of the most popular cosmetic dental procedures in the United States.
Nearly all cosmetic dentists offer whitening treatments, and the number of procedures they perform has jumped about 50 percent each year since 2005, according to the American Academy of Cosmetic Dentistry. More people also are turning to cosmetic enhancements beyond whitening, such as bonding and veneers, which can improve the function and appearance of crooked, chipped or worn teeth.
Cosmetic options abound. To decide which may be right for you, experts say, see a dentist for an evaluation.
"Any tooth decay, cavities, periodontal disease and root or gum recession will have to be resolved before going ahead with whitening," says Matthew Messina, a consumer adviser to the American Dental Association.
Sometimes, he adds, just correcting those problems can improve the color and appearance of teeth. When that's not enough, dentists can make additional improvements using well-tested whiteners or prosthetics. But an informed do-it-yourself approach may be cheaper and, ultimately, just as effective.
Whether applied at home or in a professional's office, reputable whitening products use peroxides, chemicals that release oxygen bubbles to lift out staining pigments and debris. Where whiteners differ is in their peroxide concentrations, the time they take to work and, of course, cost.
Whitening toothpastes: Supermarkets and pharmacies offer a dizzying array of whitening pastes for less than $10 a tube. Crest alone boasts seven varieties of toothpaste whiteners. Colgate has eight. And that's not even counting the number of different flavors (Caribbean cool, anyone?), gels, baking sodas and 2-in-1 paste/mouthwashes that promise to brighten your smile. But do they really work?
"It depends on the active ingredient," says Laura Kelly, president of the American Academy of Cosmetic Dentistry. Only some brands contain a peroxide, and those that do have very low concentrations, usually 1 percent to 2 percent.
That's enough to remove surface stains and give teeth a good outer cleaning but not enough to make teeth shades whiter. "They're more effective at maintaining your shine after you've undergone stronger in-office or at-home whitening treatments," says Kenton Ross, a spokesman for the Academy of General Dentistry.
Over-the-counter whitening products: The best known are strips - thin, cellophane-like tape that adheres directly to the teeth - and gel-filled trays, both falling in the $15 to $50 range. The bleaching agent in these products can cause irritation or blotching if it comes in contact with the lips or gums, Ross says. To minimize that problem, manufacturers keep peroxide concentrations low, which means you should expect relatively slow, modest results.
"The OTC products are ideal for someone going to the prom in a week or needing a little touch up here and there," Messina says.
In-office whitening: You'll fetch the most dramatic improvement in the shortest time with bleaching procedures done at a dentist's office. But convenience and results come at a price - often between $500 and $1,000 and even more in major metropolitan areas.
Some products, including Zoom and BriteSmile, make use of a high-intensity blue light or laser that purportedly activates the highly concentrated hydrogen peroxide solution and speeds up the process, but it's debatable whether such flashy extras make a difference. In studies, researchers such as Bruce Matis, director of clinical research at the Indiana University School of Dentistry, have found that they don't.
With minimal home follow-up care, in-office bleaching can last for up to five years. However, teeth are vulnerable to restaining shortly after the procedure, so Messina recommends a "white diet" for the first few days: fish, chicken, rice and water.
At-home whitening: Those looking for in-office results at a lower price can use a dentist-supervised "at-home" treatment. Patients get a custom-fit tray and a whitening gel that's about a third as strong as the solutions used in offices.
"Most at-home kits need to be worn once or twice a day, about an hour each time, and up to two weeks," Ross says. Costing $200 to $400, the kits work as well as or better than in-office treatments, according to Matis.
In studies, he has found that at-home treatments outperform all tested in-office products. To prevent restaining, which is most likely to occur during and just after the treatment period, users of the kits need to avoid pigment-laden substances like cola, coffee and tobacco smoke.
The most common side effect of all whitening treatments - tooth sensitivity - will usually resolve within a day or two, Ross says. In rare instances, the discomfort can cause a dentist to cut short a treatment.
from Newsday, March 18, 2008
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