Teeth Whitening
A tooth whitening procedure brightens the smile of the patient using one of a variety of methods, some more successful and longer lasting than others. Many people choose this cosmetic treatment to nullify the effects of discoloration and staining, but whitening is also regularly used to intensify the whiteness of relatively clean teeth. Not all discoloration can be fully whitened, but the shade of the teeth is lightened using the same techniques.
Causes of Discoloration
In cases of staining or discoloration, the surfaces of the affected teeth often change over the years due either to the natural aging process or continued inadequate oral hygiene. In both cases the enamel on the teeth is worn down and the teeth take on a yellow tinge. Some people’s enamel is particularly bright due to genetic factors, which can decrease the likelihood of major discoloration. Certain diseases, medications and chemicals can all contribute to discoloration, while significant intake of common drinks including cola, tea, coffee and wine can all stain the teeth. Prolonged tobacco use is another widespread cause.
It is important to disclose any medical causes of your discoloration to the cosmetic dentist.
Teeth Whitening Techniques
A number of whitening techniques are available, and you should consider the advantages and disadvantages of each before committing to treatment.
Tooth bleaching involves using a special chemical whitening solution, either at home or the dentist’s clinic, with the help of a custom-fit mouth tray. The tray is made by the dentist and guarantees the right amount of solution and correct exposure to the chemical. The patient has to keep the mouth tray inserted for a period of time determined by the severity of discoloration. This can last for a couple of hours or overnight, and the process is repeated for 2 or 3 weeks.
Whitening strips are a home whitening method sold over the counter at many stores. It is the most popular technique due to the lower pricing and simplicity of use. The strips are placed over the upper and lower sets of teeth and worn for 30 to 60 minutes per day. They are generally comfortable to wear, which is important because successful results can take a week or two of regular usage depending on the brand (some may take up to a month). The results might not be satisfactory for serious discoloration, and patients often use this method in addition to a professional procedure.
Laser bleaching is the newest of the treatments and provides speedy in-office whitening. Translucent bleaching gel is carefully applied to the teeth and then activated by a laser while the patient sits in a cosmetic dentist’s chair. The length of procedure depends on the amount of discoloration but generally only one visit is necessary.
How long does whitening last?
Different techniques last for varying amounts of time and depend on individual circumstances. Laser treatment is considered the longest-lasting method, with results not diminishing until 12 to 18 months later. Regular bleaching and other mouth tray procedures can show full effects for 4 to 15 months. Home methods are far less reliable and you should consult the specific product for guidance. In all these cases personal oral hygiene makes a big difference, as results have the potential to last for years with responsible upkeep.
How much does it cost?
The area of the country and type of treatment will impact on the cost but an average price for general bleaching and whitening procedures is $500. Home tray bleaching is a lot cheaper, as are store-bought products. Laser bleaching is the most expensive, with an estimated price of around $1000.