Why a Tooth Whitening System?
There is a plethora of tooth whitening systems available currently. Why do teeth become yellowed? This is due to the fact that individuals consume caffeine-containing drinks, smoke, get exposed to antibiotics, and just plain age. Teeth whitening is an effective way to reverse this process, and is so successful that 95% of persons going through the system do show some improvement. Tooth whitening systems offer a wide spectrum of alternatives, ranging from low cost whitening strips on the low end to costly but generally effective specialized dental whitening services.
Take Home Tray Whitening
Because the bleaching tray is so custom fitted, this allows the bleaching gel to remain in contact with the teeth surface. Actually, this is the most significant aspect of the bleaching process and is the rationale why tray based bleaching systems have been so successful. This is probably the most cost effective method of tooth whitening right now available. With a take home tooth whitening tray technique, which the patient can perform at home, the dentist makes an impression for a model of the patient’s teeth. Later, a perfect fitting bleach tray is fitted from this impression. Lastly, a bleaching gel is prescribed by the dentist. At home, the bleaching gel is placed in the bleaching tray by the patient and the tray is then worn for one to two hours at home at a convenient time by the tooth whitening patient.
An OTC kit is similar to the take home whitening tray fitted at the dentist’s office, but in this case, you are totally on your own. You must closely follow all the instructions. This procedure has been successful, but you should be careful. This technique is not recommended by the ADA.
Dentist-supervised laser tooth whitening
Compared to OTC products, dentists generally use a higher concentration of bleaching compound with a laser tooth whitening system like Britesmile® or Zoom® tooth whitening. With a laser whitening technique, the exactly defined light frequency combined with a proprietary bleaching chemical produces particularly enhanced whitening effects. With a procedure like Zoom® tooth whitening, a special bright laser light is shone on the teeth whitening gel for an hour. Laser light energy creates energy which leads to chemical reactions that cause the tooth whitening. A good number of people do a Zoom® tooth whitening once every six months.
A comparison of peroxide concentrations in tooth whitening
The following table will provide the reader a thorough understanding of the differing strengths of peroxides used in the different whitening systems.
| Application |
Agent |
Professional/OTC |
Concentration |
| In Office "power bleaching" |
hydrogen peroxide
carbamide peroxide |
dentist
dentist |
15%-38%
35% |
| Night-time tray bleaching |
carbamide peroxide
hydrogen peroxide |
dentist
dentist |
10%-22%
6-9.5% |
| whitening strips |
hydrogen peroxide
hydrogen peroxide |
OTC
dentist |
5.3%-10%
6.5%-14%
|
| paint on gels |
carbamide peroxide
hydrogen peroxide |
OTC
OTC
|
18%
19% |
A comparison of all the tooth whitening systems
In the following table, we make an attempt to summarize the relative effectiveness, costs, and benefits of the diverse tooth whitening systems.
| Method |
Effectiveness |
Length of results |
Treatment Duration |
Side Effects |
Tooth Type |
Cost |
| Whitening strips |
Whitens teeth slightly, might leave "lines" |
1 year |
7-14 days |
Minimally sensitive teeth/gums |
Slightly yellow teeth |
$15 |
| Brush on whitening gels |
Somewhat better than regular toothpaste |
Several weeks |
7-14 days |
Bad breath |
Slightly yellow teeth |
$3-$5 |
| OTC gels |
Improves with higher peroxide levels |
1 year |
1-3 weeks |
Sensitive teeth/gums |
Moderately yellow to dark teeth |
$10 |
| Bleaching done in dentist's office |
Great for yellow teeth |
3 yrs |
1-2 mos. |
Sensitive teeth/gums |
Extremely dark teeth, which require professional evaluation |
$300-$1000 |
| Dentist supervised gel application |
Great for yellow teeth |
3 years |
3-6 wks |
Sensitive teeth/gums |
Dark teeth, which needs a dentist-supervised evaluation |
$300-$500 |
| Crowns |
Very effective for one tooth |
10-15 years |
1 month |
feeling of tightness |
Single tooth is decayed or broken |
$600-$3000 |
| Veneers |
Very effective for just one tooth |
10-15 years |
3-4 weeks |
feeling of tightness |
Single tooth needs straightening |
$500-$1200 |
| Bonding |
Very effective for just one tooth |
5-10 years |
1-2 weeks |
Rare allergies |
Single tooth needs minor reshaping |
$300-$700 |
Whitening Strip Method
Whitening strips are able to do a fine job of whitening the exterior tooth surfaces, but achieve a poor job of bleaching the teeth divisions and cracks. A dark division between whitened teeth might appear like a bad cavity. If you do not utilize a tray-based tooth whitening system, you run the risk of having irregular or spotty results. The next simplest tooth whitening method is the whitening strip method. You place tooth bleaching tape on your front teeth. This tape is flexible, and contains the gel which bleaches the teeth. This is the most comfortable, least costly, and easiest to use tooth whitening system. This explains the popularity of this technique. However, often the possible results aren't as nice as those outcomes seen with the tray-based methods or in-office laser tooth whitening systems.
OTC tooth whitening products could in principle come up with the identical tooth whitening effect as a visit to a dentist office, but with a lower concentration of the peroxide (5% - 10%), and over a longer period of time. This is partially true, but omits the reality that dentists utilize a laser tooth whitening system as well as bleach, something unavailable with OTC products.
The ADA Seal of Acceptance
Only certain tray-based dentist-dispensed products have the ADA Seal. In all the at-home tooth whiteners that have obtained the ADA Seal, the active ingredient is a 10% carbamide peroxide solution. The ADA guideline for a whitener requires that it not become harmful to the soft tissues of the mouth or the teeth, and that a whitener can effectively whiten teeth. What one should know about the ADA seal of acceptance is that no OTC product has as of yet earned this coveted designation. There are varying degrees of worth to all these whitening systems. This is an area that the U.S. FDA does not become involved. Nevertheless, the American Dental Association (ADA) does set guidelines for tooth whitening products.
Tooth Whitening Toothpaste
The most uncomplicated tooth whitening approach is tooth whitening toothpaste (which is a mix of hydrogen peroxide and baking soda). If you just need some simple maintenance of prior tooth whitening, then this is the direction to go. But, if the situation is more deep rooted, then further tooth whitening systems might be looked into.
Three Primary Approaches to Tooth Whitening
In spite of the confusing array of dentist and over the counter (OTC) products, there are in point of fact simply three (3) approaches to whitening one’s teeth:
- Dental in-office bleaching
- Self-applied night-time bleaching using a tailored tray or a polyethylene strip
- Individual directed whitening using OTC bleaching products
The key to the highest quality results in tooth whitening is the whitening agent delivery system. In all the tooth whitening methods, the tooth bleaching gel is kept in place by a method of delivery. This is definitely fundamental to keep the gel in contact with the surface of the tooth. You clearly can’t put a bleaching agent on your teeth without a viable delivery system and presume it to work. There is nothing intrinsically superior or deficient regarding any of these three basic approaches - each technique should yield good results.
Conclusion
Whatever tooth whitening system you prefer, always seek the advice of your dentist and follow carefully all instructions. Analyze your condition. Providing you are looking for a little whitening of your teeth, then think about an OTC tooth whitening system. If you really desire a magnificent bright white smile, then your sole choice is a cosmetic dentist.
If you have a further interest in tooth whitening methods, you may also want to look into
brightsmile or in addition
tooth whitening kit.