Posts for tag: teeth whitening
Whether performed in a dental office or using a home kit, teeth whitening applications are quite effective for bleaching exterior (extrinsic) stains on enamel surfaces. But what if your discoloration comes from inside the tooth? In this case, extrinsic teeth whitening won’t work — you’ll need to undergo an “internal bleaching” method, which can only be performed in a dentist's office.
There are a number of causes for “intrinsic” staining, including too much fluoride exposure or tetracycline use during childhood. One of the more common causes, though, occurs from root canal treatments used to remove the remnants of the pulp tissue inside a tooth’s pulp chamber and root canals. Certain cements used during the procedure to help seal in the filling material and leftover blood pigments can cause the tooth to darken over time.
To alleviate this discoloration, we use a bleaching agent, usually sodium perborate mixed with a diluted solution of hydrogen peroxide to achieve a safe, accelerated color change. After determining that the root canal filling is still intact and the bone is healthy, we create a small cavity in the back of the tooth to access the pulp chamber. The chamber is cleaned of any debris or stained material and then thoroughly irrigated. The original root canal filling is then sealed off to prevent leakage from the bleaching agent.
We then place the bleaching agent in the cleaned-out space with a cotton pellet and seal it in with a temporary adhesive. This step is repeated for several days until we achieve the desired shade of white. Once that occurs we then seal the dentin with a more permanent filling and then restore the cavity we created with a composite resin bonded to the enamel and dentin.
If we’re successful in achieving the desired color, intrinsic whitening could help you avoid more costly options like veneers or crowns for an otherwise healthy and attractive tooth. The end result would be the same — a beautiful smile without those unsightly stains.
If you would like more information on treating internal tooth stains, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Whitening Traumatized Teeth.”
Academy Award-winning actress Kathy Bates knows how important it is to present your best face to the world — and one of the most important features of that face is a beaming smile. But there came a point when she noticed something was a little off. “I've always had good teeth, but it seemed to me as I was getting older that they weren't looking as good,” Kathy explained in a recent interview with Dear Doctor magazine.
That's when she decided it was time to take action. Kathy had orthodontic treatment when she was in her fifties, and she keeps her smile bright with tooth whitening treatments. She uses a kit provided by her dentist with a safe, effective whitening solution.
Of course, a bright, healthy smile looks great anywhere — whether you're on the red carpet or “off the grid.” And you don't have to be a Hollywood star to have professional whitening treatments. In fact, teeth whitening is one of the most popular and affordable cosmetic treatments modern dentistry offers.
The basic options for professional teeth whitening include in-office bleaching or take-home kits. Both types of dentist-supervised treatments offer a safe and effective means of getting a brighter smile; the main difference is how long they take to produce results. A single one-hour treatment in the office can make your teeth up to ten shades lighter — a big difference! To get that same lightening with at-home trays, it would take several days. On the plus side, the take-home kit is less expensive, and can achieve the same results in a bit more time.
It's important to note that not all teeth can be whitened with these treatments. Some teeth have intrinsic (internal) stains that aren't affected by external agents like bleaches. Also, teeth that have been restored (with bonding or veneers, for example) generally won't change color. And you can't necessarily whiten your teeth to any degree: Every tooth has a maximum whiteness, and adding more bleach won't lighten it beyond that level. Most people, however, find that teeth whitening treatments produce noticeable and pleasing results.
What about those off-the-shelf kits or in-the-mall kiosks? They might work… or they might not. But one thing's for sure: Without a dentist's supervision, you're on your own. That's the main reason why you should go with a pro if you're considering teeth whitening. We not only ensure that your treatment is safe — we can also give you a realistic idea of what results to expect, and we will make sure that other dental problems aren't keeping you from having a great-looking smile.
How often does Kathy Bates see her dentist for a checkup and cleaning? “I go about every four months,” she noted. “I'm pretty careful about it.” And if you've seen her smile, you can tell that it pays off. If you would like more information about teeth whitening, please contact us or schedule an appointment. You can learn more in the Dear Doctor magazine articles “Important Teeth Whitening Questions Answered” and “Teeth Whitening.”
Teeth whitening is a great way to improve your smile. For best results and to ensure your safety, teeth should be bleached under professional supervision. We can help you choose the whitening method that's right for you, and monitor the effects of your treatment. Here are some answers to frequently asked questions about this relatively inexpensive cosmetic procedure:
Is teeth whitening safe?
A lot of research has been done on teeth whitening, so we know that specific bleaching formulas, from a reputable source, are safe if used as directed and after a proper dental examination. You should be aware that tooth sensitivity is a common side effect of bleaching, but brushing with a desensitizing toothpaste containing potassium nitrate for two weeks prior to bleaching can reduce sensitivity. Using potassium nitrate during the bleaching process can also help.
Is it effective?
Professional bleaching is very effective. Peroxide goes through tooth enamel (the outermost layer) and the dentin (middle layer) to the pulp (the innermost layer) in 5 to 15 minutes. The bleach actually changes the color of the enamel and dentin, and removes stains.
How is teeth whitening done?
Basically there are three options: in-office whitening (done by a dentist), at-home bleaching with custom-made flexible plastic trays (with prescription bleach), and over-the-counter (OTC) products. Not all OTC products are equal, and the results will take longer to achieve than with professionally supervised procedures.
How long does it take?
That depends on what method you choose and, in the case of at-home whitening, how conscientious you are about following through with your course of treatment. One study found that a six-shade change required either: three in-office applications of 38% hydrogen peroxide; one week of 10% carbamide peroxide used at home nightly in a custom-made tray; or 16 daily application of 5.3% hydrogen peroxide on a whitening strip.
Will it last?
It really depends on the individual. No bleaching method can whiten teeth permanently, though some people's teeth remain white for over 10 years with no touch-up treatment. More typical results vary from six months to two years. Keeping up with your regular oral hygiene routine at home and your professional cleanings at the dentist's office will help maintain the results; so will avoiding tobacco and beverages that stain, such as red wine, tea and coffee. You can also consider a bleaching touch-up once or twice a year at home or here at the dental office.
I want to go for it! What's the first step?
Step one is a pre-bleaching dental examination to determine the cause of your tooth discoloration. We want to make sure that your discoloration is not the result of an oral health-related problem. For example bleaching will mask but not resolve issues such as abscessed teeth, decay, and root canal problems. We want your teeth not only to be beautiful, but healthy, too!
If you are interested in learning more about teeth whitening, please contact us today to schedule an appointment for a consultation. For more information on teeth whitening, please see the Dear Doctor magazine articles “Important Teeth Whitening Questions Answered” and “Tooth Whitening Safety Tips.”
If you’re considering tooth whitening, you may be torn between using a home product and undergoing a professional application in our office. Here’s a brief comparison of both approaches to help you in your decision process.
It helps first to know what we’re trying to correct — that dull, discolored tooth stain. Tooth staining comes in two varieties: intrinsic, which occurs deep within the tooth and can be caused by aging, old root canal treatments, tetracycline antibiotic use or excessive fluoride intake during childhood development; or extrinsic, which occurs mainly on the tooth surface and is caused by substances like coffee, tea, wine or tobacco. Intrinsic stains can only be treated through an in-office procedure — the comparison we’re making between home and professional whitening refers only to extrinsic staining.
Whitening, then, is the use of a chemical agent to bleach those stains. The majority of both home and professional products use hydrogen peroxide or carbamide peroxide (which also contains hydrogen peroxide) as its primary bleaching agent. Depending on the application, either of these chemicals can effectively bleach extrinsically stained teeth. The two approaches differ, however, in the strength of the bleaching agent: home products usually contain a 10% or less concentration, while professional solutions usually contain between 15% and 35%. As a result, the home application takes longer than a dentist’s treatment to achieve desired results — two to three weeks as opposed to one or two office visits.
Whichever option you choose, remember teeth whitening isn’t a permanent solution. The brightness will fade over time — six months to a year if you restrict foods and habits that stain teeth. You can also receive a touch-up once or twice a year to help extend brightness.
There’s also a middle of the road option — you can use a home application with guidance from our office. It’s also a good idea to visit us for an examination beforehand — we can then advise you on what options will work for your particular type of staining and teeth condition.
If you would like more information on teeth whitening options, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine articles “Teeth Whitening” and “Tooth Staining.”
Australian heartthrob Hugh Jackman has won international recognition for his work on stage, screen and television, including his long-running portrayal of Wolverine in the X-Men film series, and his Academy-Award-nominated starring role in Les Miserables. Oh, and did we mention he was named the “sexiest man alive” by People magazine in 2008? So when Jackman once said “I have shocking teeth”… what did he mean?
“[My dentist] looked at my teeth and went, ‘Oh, my God, you've got gray teeth,’” the actor stated. The proposed cure: tooth whitening. But what if the action hero's teeth were brightened too much — would his look still convey his trademark rugged charm? To see how that issue was resolved, let's look a little closer at various methods of tooth whitening.
All Whitening Isn't the Same
Everyone has seen the kind of over-the-counter tooth whitening strips advertised in magazines and sold in drug stores. Most dentists agree that, given enough time, they can work in many cases. But there may be problems, too.
One is that unless you know what's actually causing the darkening, you can't be sure if there is an underlying issue that needs treatment — a root-canal problem, for example. Bleaching a diseased tooth is like painting over a rusty car: it camouflages the problem, but doesn't fix it. That's one reason why, before any whitening treatment is attempted, it's important to have a complete dental examination, with x-rays.
Another is that without professional supervision, it's more difficult to control the degree of whitening you will end up with. For safety reasons, over-the-counter whitening products have the least concentrated bleaching agent, and will probably require weeks of use to produce noticeable results. The next step up — a custom-designed, at-home bleaching kit from our office — will likely produce results twice as fast.
The Professional Advantage
At-home bleaching done under our supervision uses stronger whitening agents with a flexible plastic tray that's custom-made to fit your teeth. It's a cost-effective way to achieve several shades of whitening in a relatively short time. Plus, with the advantage of our experience and guidance, you can get excellent results safely and efficiently.
If you want the fastest and most controllable whitening, however, in-office whitening treatments are the best way to go. According to one study, using the most concentrated whiteners in a safe clinical setting produced a six-shade improvement in just three office visits! This would have required a week or more of at-home bleaching, or upwards of 16 daily applications of the over-the-counter whitening products!
In-office whitening also offers the greatest degree of control over the outcome. That's why it was the method Hugh Jackman chose for his treatments. By adjusting the concentration of the bleaching solution and the treatment time, Jackman's dentist made sure his teeth were pleasingly light — but still looked completely natural. And in our office, we can do the same for you.
So whether you're looking for a dazzlingly bright smile or a more subtle enhancement, the best way to start is to call our office for a consultation. For more information, see the Dear Doctor magazine articles “Important Teeth Whitening Questions Answered” and “Teeth Whitening.”