Professional teeth whitening is no longer the privilege of the wealthy or celebrities. Today affordable clinics are able to offer a new brightness to the smile. Currently there are two traditional treatments: one done in the office and another one performed at home. Both use the same substances, but at different concentrations with hydrogen peroxide and carbamide. This double whitening, incidentally, has a close relationship with hydrogen peroxide. In contact with the tooth, it degrades and releases oxygen ions which penetrate the enamel, the outermost layer of the tooth, reaching the dentin, the hard part.
The procedure carried out at home is the most popular. In this procedure, you make a mold of your mouth at the dentist. With the aid of a syringe, the product is applied for two to three weeks. Typically it’s left on the teeth for 30 minutes per day. At the dentist office, the procedure typically takes about two hours. In such cases, the dentist usually uses some kind of light to accelerate the process by heat, making use of laser, LED (light emitting diode), a combination of both, among others.
The laser has been the focus of discussion to be accused of increasing the tooth sensitivity. This kind of problem does not occur when using the light correctly. After the teeth whitening sessions, the lifestyle will determine the duration of the white teeth. On average, it tends to stay between one and a half and two years. And it’s OK to repeat the process after this interval.
Whiteness AT ANY COST
Some are obsessed by lightening the teeth – even with the risks rather than results. There’s nothing wrong with wanting to have teeth brighter and brighter. The problem is when this quest becomes an obsession, leading the person to undergo treatment without supervision or a professional to repeat the procedure before the deadline. The teeth are naturally four shades, which are divided into four tones each, from white, yellow, gray and brown. With a bit of effort someone can go from a darker brown to the target. Moreover, the wear of enamel leads to the darker color of dentin, so that, over the years, they appear darker.
When It’s Not Recommended
- Pregnant women and women who are breastfeeding.
- Children under 15 years, by producing a thick dentin less sensitive to damage
- People with long teeth restored or porcelain plates.
- Heavy smokers.