Teeth Whitening Treatements & Cost
In the blossoming world of cosmetic dentistry, teeth whitening reigns supreme. Universally valued by men and women alike, whitening (or bleaching) treatments are available to satisfy every budget, time frame and temperament.
Whether in the form of one-hour bleaching sessions at your dentist’s office, or home-use bleaching kits purchased at your local drugstore, teeth whitening solutions abound. Yet only 15 percent of the population has tried the cosmetic procedure, and misinformation on the subject is rife.
The long and the short of it is that teeth whitening works. Virtually everyone who opts for this cosmetic treatment will see moderate to substantial improvement in the brightness and whiteness of their smile. However, teeth whitening is not a permanent solution and requires maintenance or “touch-ups” for a prolonged effect.
Bleaching vs. Whitening
According to the FDA, the term “bleaching” is permitted to be used only when the teeth can be whitened beyond their natural color. This applies strictly to products that contain bleach – typically hydrogen peroxide or carbamide peroxide.
The term “whitening,” on the other hand, refers to restoring a tooth’s surface color by removing dirt and debris. So any product that cleans (like a toothpaste) is considered a whitener. Of course, the term whitening sounds better than bleaching, so it is more frequently used – even when describing products that contain bleach.
Why Teeth Whitening? Examining Enamel
Most of us start out with sparkling white teeth, thanks to their porcelain-like enamel surface. Composed of microscopic crystalline rods, tooth enamel is designed to protect the teeth from the effects of chewing, gnashing, trauma and acid attacks caused by sugar. But over the years enamel is worn down, becoming more transparent and permitting the yellow color of dentin – the tooth’s core material – to show through.
During routine chewing, dentin remains intact while millions of micro-cracks occur in the enamel. It is these cracks, as well as the spaces between the crystalline enamel rods, that gradually fill up with stains and debris. As a result, the teeth eventually develop a dull, lackluster appearance.
Teeth whitening removes the stains and debris, leaving the enamel cracks open and exposed. Some of the cracks are quickly re-mineralized by saliva, while others are filled up again with organic debris.
Tooth Discoloration: The Two Types of Tooth Stains
There are two categories of staining as it relates to the teeth: extrinsic staining and intrinsic staining.
Extrinsic stains are those that appear on the surface of the teeth as a result of exposure to dark-colored beverages, foods and tobacco, and routine wear and tear. Superficial extrinsic stains are minor and can be removed with brushing and prophylactic dental cleaning. Stubborn extrinsic stains can be removed with more involved efforts, like teeth bleaching. Persistent extrinsic stains can penetrate into the dentin and become ingrained if they are not dealt with early.
Intrinsic stains are those that form on the interior of teeth. Intrinsic stains result from trauma, aging, exposure to minerals (like tetracycline) during tooth formation and/or excessive ingestion of fluoride. In the past, it was thought that intrinsic stains were too resistant to be corrected by bleaching. Today, cosmetic dentistry experts believe that even deep-set intrinsic stains can be removed with supervised take-home teeth whitening that is maintained over a matter of months or even a year.
What Causes Tooth Staining?
Age: There is a direct correlation between tooth color and age. Over the years, teeth darken as a result of wear and tear and stain accumulation. Teenagers will likely experience immediate, dramatic results from whitening. In the twenties, as the teeth begin to show a yellow cast, teeth-whitening may require a little more effort. By the forties, the yellow gives way to brown and more maintenance may be called for. By the fifties, the teeth have absorbed a host of stubborn stains which can prove difficult (but not impossible) to remove.
Starting color: We are all equipped with an inborn tooth color that ranges from yellow-brownish to greenish-grey, and intensifies over time. Yellow-brown is generally more responsive to bleaching than green-grey.
Translucency and thinness: These are also genetic traits that become more pronounced with age. While all teeth show some translucency, those that are opaque and thick have an advantage: they appear lighter in color, show more sparkle and are responsive to bleaching. Teeth that are thinner and more transparent – most notably the front teeth – have less of the pigment that is necessary for bleaching. According to cosmetic dentists, transparency is the only condition that cannot be corrected by any form of teeth whitening.
Eating habits: The habitual consumption of red wine, coffee, tea, cola, carrots, oranges and other deeply-colored beverages and foods causes considerable staining over the years. In addition, acidic foods such as citrus fruits and vinegar contribute to enamel erosion. As a result, the surface becomes more transparent and more of the yellow-colored dentin shows through.
Smoking habits: Nicotine leaves brownish deposits which slowly soak into the tooth structure and cause intrinsic discoloration.
Drugs / chemicals: Tetracycline usage during tooth formation produces dark grey or brown ribbon stains which are very difficult to remove. Excessive consumption of fluoride causes fluorosis and associated areas of white mottling.
Grinding: Most frequently caused by stress, teeth grinding (gnashing, bruxing, etc.) can add to micro-cracking in the teeth and can cause the biting edges to darken.
Trauma: Falls and other injuries can produce sizable cracks in the teeth, which collect large amounts of stains and debris.
Teeth Whitening Options
Three major teeth whitening options are available today. All three rely on varying concentrations of peroxide and varying application times.
In-Office Whitening
Significant color change in a short period of time is the major benefit of in-office whitening. This protocol involves the carefully controlled use of a relatively high-concentration peroxide gel, applied to the teeth by the dentist or trained technician after the gums have been protected with a paint-on rubber dam. Generally, the peroxide remains on the teeth for several 15 to 20 minute intervals that add up to an hour (at most). Those with particularly stubborn staining may be advised to return for one or more additional bleaching sessions, or may be asked to continue with a home-use whitening system.
In-office teeth whitening cost: $650 per visit (on average) nationwide.
(Read more about in-office teeth whitening)
Professionally Dispensed Take-Home Whitening Kits
Many dentists are of the opinion that professionally dispensed take-home whitening kits can produce the best results over the long haul. Take-home kits incorporate an easy-to-use lower-concentration peroxide gel that remains on the teeth for an hour or longer (sometimes overnight). The lower the peroxide percentage, the longer it may safely remain on the teeth. The gel is applied to the teeth using custom-made bleaching trays that resemble mouth guards.
Take-home teeth whitening kit cost: $100 to $400.
(Read more about professionally dispensed whiteners)
Over-the-Counter Whitening
The cheapest and most convenient of the teeth whitening options, over-the-counter bleaching involves the use of a store-bought whitening kit, featuring a bleaching gel with a concentration lower than that of the professionally dispensed take-home whiteners. The gel is applied to the teeth via one-size-fits-all trays, whitening strips or paint-on applicators. In many cases this may only whiten a few of the front teeth unlike custom trays that can whiten the entire smile.
Over-the-counter teeth whitening cost: $20 to $100.
(Read more about at-home teeth whitening)
Hydrogen Peroxide vs. Carbamide Peroxide
The bleach preference for in-office whitening, where time is limited, is powerful and fast-acting hydrogen peroxide. When used in teeth bleaching, hydrogen peroxide concentrations range from approximately nine percent to 40 percent.
By contrast, the bleach of preference for at-home teeth whitening is slower acting carbamide peroxide, which breaks down into hydrogen peroxide. Carbamide peroxide has about a third of the strength of hydrogen peroxide. This means that a 15 percent solution of carbamide peroxide is the rough equivalent of a five percent solution of hydrogen peroxide.
How White Can You Go? A Matter of Esthetics
Teeth whitening results are subjective, varying considerably from person to person. Many are immediately delighted with their outcome, while others may be disappointed. Before you embark on any whitening treatment, ask your dentist for a realistic idea of the results you are likely to achieve and how long it should take to achieve them. Expectations play a major role in teeth whitening.
Whitening Shade Guides
In the dental office, before-and-after tooth color is typically measured with shade guides. These are hand-held displays of wide ranges of tooth colors. (Dentists also use them in choosing crown and other restoration shades.)
The standard-setter among them has long been the Vitapan Classic Shade Guide. This shade guide standard incorporates 16 shades, systematically arranged from light to dark into four color groups, and provides a universal tooth-color terminology.
While whitening can occasionally lighten tooth color by nine or more shades, most of those who bleach their teeth are likely to see a change of two to seven shades.
Teeth Whitening Risks
Teeth whitening treatments are considered to be safe when procedures are followed as directed. However, there are certain risks associated with bleaching that you should be aware of:
- Sensitivity: Bleaching can cause a temporary increase in sensitivity to temperature, pressure and touch. This is likeliest to occur during in-office whitening, where higher-concentration bleach is used. Some individuals experience spontaneous shooting pains (“zingers”) down the middle of their front teeth.Individuals at greatest risk for whitening sensitivity are those with gum recession, significant cracks in their teeth or leakage resulting from faulty restorations. It has also been reported that redheads, including those with no other risk factors, are at particular risk for tooth sensitivity and zingers.Whitening sensitivity lasts no longer than a day or two, but in some cases may persist up to a month. Some dentists recommend a toothpaste containing potassium nitrate for sensitive teeth.
- Gum irritation: Over half of those who use peroxide whiteners experience some degree of gum irritation resulting from the bleach concentration or from contact with the whitening trays. Such irritation typically lasts up to several days, dissipating after bleaching has stopped or the peroxide concentration lowered.
- Technicolor teeth: Restorations such as bonding, dental crowns or porcelain veneers are not affected by bleach and therefore maintain their default color while the surrounding teeth are whitened. This results in what is frequently called “technicolor teeth.”
Maintaining Your Whiter Smile
To extend the longevity of newly whitened teeth, dentists are likely to recommend:
- At-home follow-up or maintenance whitening – implemented immediately or performed as infrequently as once a year.
- Avoiding dark-colored foods and beverages for at least a week after whitening.
- Whenever possible, sipping dark-colored beverages with a straw.
- Practicing excellent oral hygiene – brushing and flossing after meals and at bedtime.
Caveats
In addition to the aforementioned risk factors, a number of caveats should be considered before undergoing teeth whitening:
- No amount of bleaching will yield “unnaturally” white teeth.
- Whitening results are not fully seen until approximately two weeks after bleaching. This is an important consideration if you are about to have ceramic restorations and want to be sure the color matches that of your newly bleached teeth.
- If cosmetic bonding, porcelain veneers or other restorations are part of your treatment plan, they should not be placed until a minimum of two weeks following bleaching to ensure proper adhesive bonding, function and shade matching.
- To avoid the technicolor effect, tooth-colored restorations will likely need replacement after bleaching.
- Recessed gums often reveal their yellowish root surfaces at the gum line. That yellow color has proven difficult to bleach.
- Pregnant or nursing women are advised to avoid teeth whitening. The potential impact of swallowed bleach on the fetus or baby is not yet known.
Order a trial sample kit.
Related posts:
- Over the Counter Teeth Whitening Products – High cost/Low results
- The Origins of Teeth Whitening (Sometimes the Original Methods are Truly the Best)
- Interesting Teeth Whitening Facts
- Is professional teeth whitening for everyone?
- Is Teeth Whitening Really Safe? And What is the Difference Between Carbamide Peroxide and Hydrogen Peroxide Whitening Gel?
Ola, what’s up amigos?
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Thanks and good luck everyone!
Hi, Blakus – we appreciate your kind words. Drop us a note anytime – we’re here to help.
Thanks!
Cheryl Conner
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1. Right standard tooth brushing techniques.
2. Correct eating habits and good diet.
3. The use of fluoride h2o and other fluoride-containing substances like toothpastes and mouthwashes.
4. Typical visits towards the dentist such as a thorough dentistry check-up and prophylaxis.
All these can offer optimum oral wellness, no cost from dentistry caries and periodontal condition.
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At times ill fitting, old and worn out dentistry appliances like dentures, orthodontic appliances and bridges can be the source of gum irritation. These dentist appliances need to also be taken cared of inside a similar way to normal teeth. All removable dentist appliances ought to be removed after just about every meal or snack and should be cleaned having a unique brush. Don’t let meal particles accumulate in these appliances. Rinse the appliance with running h2o when it truly is impossible to clean it thoroughly with a brush so that foods particles might be eliminated. Soak the appliance overnight once or twice a week in the answer of sodium hypochlorite. This alternative helps eliminate stains on the dentistry appliance.
The use of fluoride water is yet another essential factor in sustaining good tooth hygiene. Most U.S. h2o systems today are already treated with fluoride. It has been observed that the use drinking water treated with the proper amount of fluoride can actually aid prevent dentistry caries. Fluoride is discovered to strengthen the enamel. Fluoride can also be topically applied on the teeth to children ages 13 and below. You’ll find also toothpastes and mouthwashes readily available inside marketplace right now that contains fluoride.
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Thanks, Fleepedar – all very good points and we appreciate you taking the time to provide this info –
-Cheryl
How I can write PM to other users? Thanx
Pru – every comment stays hyperlinked to the site of the individual – hopefully that gets you through to them. If that doesn’t work, let me know and I’ll see if I can help you out. Thanks for reading!