Teeth whitening is a cosmetic dental treatment is able to reduce various shades ue the original color of the teeth, leaving teeth whiter and brighter.
Lets remove most stains caused by medications or by tea, coffee, mate, snuff and red wine, among other substances, and foods. It does not cause pain, or produce dental descaste.
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If done in a clinic, can last up to an hour, in which the patient sees as significant changes
How exactly?
The tooth color is due to organic substances containing double bonds unsaturated. When these double bonds are oxygenated the chrome areas become lighter or lose color.
And this is what happens in the whitening process: The hydrogen peroxide is the active oxygenating presented in form or vinculadora liberating for urea and carbamide peroxide. Hydrogen peroxide decomposes on the gel radicals that attack the double bonds of the cromoesferas, so the discoloration.
What is the difference between whitening products and whitening Pharmacies provided by the dentist?
Before starting the teething whitening treatment of the patient should be carefully examined to find the cause of the discoloration. Furthermore, only the dentist is able to provide a bleaching therapy competent, inform the patient or otherwise. Whitening products available at drug ferrules are provided with ready-made that do not conform to each individual consumer's teething. This means a substantial risk of irregularity, a whitening effect stained gingival irritation or even the whitening gel digest.
What are the indications for whitening?
Basically the external bleaching is feasible in any healthy dentition, regardless of the number of restorations carried out. Fillings the dentist initially valued as very light or dark then are adjusted to make the whitening treatment. The whitening is indicated for people with relative age discolorations or stains caused by, coffee, tea or snuff, that can not be removed with prophylaxis.
Are there any contraindications?
Bleaching is not recommended for pregnant or breastfeeding. Further whitening should not be continued in persons with allergy to any of the compounds of the material (such as hydrogen peroxide or peppermint flavor). Initially it should be tested to remove discolorations with oral hygiene and prophylaxis. Smokers should not smoke while the gel is in the mouth. The whitening treatment is not indicated for teeth with a very irregular enamel.
Fillings??
Composite resins can not be bleached with carbamide peroxide. If the fillings are intact, if there are no marginal gaps whitening should be performed first. After the bleaching, the teeth must be completely rehydrated for a period of 2 to 3 weeks. The color of the restorations can be evaluated after this period. In many cases are fillings lighter placing the substance and need replacing. If you are very dark fillings must be replaced for a satisfactory outcome.
Crowns??
The whitening gel whitens no ceramics. But with some crowns in the mouth that are clearer because the natural tooth is discolored by the passage of time, a whitening treatment can restore the color. If the crown is very dark because of the application can try to renew to get a good result in their entirety.
Is the teeth whitening indicated in exposed cervical areas?
Whitening gel should not contact exposed dentin without removing cervical water dentin tubes because it can be painful. If the patient insists whitening treatment dentin must be sealed with a material type (Seal & Protect or Prime & Bond NT). A good fit of the splint is most important for patient comfort and good treatment. Recommend fluoride after treatment.
What can not be bleached discoloration?
Some discoloration caused by drugs (eg tetracycline) are very difficult to bleach. In these cases, the whitening procedure can take several months. Veneers can be a faster alternative (disadvantages: invasive measures).
How much time is needed for whitening?
Most cases, the first result is visible after two days. A whitening agent 10% the desired hue is achieved after 2 to 3 weeks with a 15% material after 10 or 14 days. The result of the treatment, any, depends primarily on the natural teeth and the type of discoloration.
How long does the result of bleaching?
The result can be maintained for 2 or more years, depending on the patient's use of snuff, coffee or tea.
How often can repeat the whitening treatment?
The dentist will decide if it is necessary to renew the whitening. Renew or darken teeth again no problem. However, if no traces of cromoesferas shutout tooth substance, "re-whitening can have effects on dentition.
Why sometimes suffers hypersensitivity after bleaching?
Hypersensitivity after bleaching is due to dehydration. Whitening gel containing glycerin water remaining tooth. Painful reactions can be mitigated or cured with fluoride. Rehydration can be achieved in approximately 2 weeks after therapy whitening.
Can you perform the whitening if the patient feels pain?
Tooth Dehydration may be the main cause of hypersensitivity during bleaching. We recommend the following steps to treat the problem:
· It warns the patient using the fluoride mouth rinse after using the splint. The splint may be filled alternately with fluorine and applied every 10 minutes.
· If hypersensitivity becomes more pronounced, the bleaching treatment has to be stopped by a day or splint using a shorter time such as 2 hours a day.
Exposed cervical Teething always be treated as described above and a well-made splint and a good fit.
Does it affect the enamel whitening?
Several studies have been published, including some in Germany, about this. The state of the art of bleaching does not affect tooth color. This reality is both dentin and enamel, for a healthy or diseased tooth. In either case will become more fragile or susceptible to decay.
Can be affected pulp?
The pulp may become sensitive, but is reversible, due to the glycerin containing the whitening gel. Hypersensitivity disappear after treatment. Still no clinical change in a permanent pulp.
Can harm the whitening gel to the gum?
If the splint is correctly placed, being fitted to the tooth, but the gum, they will not be affected. If the splint covering accidental overlaps part of the gums may become irritated. This fix will disappear quickly after the splint. Either way, when calibrating the clinical whitening gum materials must be protected carefully. This can be done by means of resist or a dental dam.
The dentist should inform the patient that the gingiva may appear whitish but disappear after a few hours and is not harmful. This can be avoided with the following steps:
· Do not overfill the splint, fill in the blanks sparingly.
· Remove excess material immediately.
What happens if you accidentally swallow the stuff?
This can be prevented by filling the ferrule which is individually tailored to the patient's teeth. The small amounts that can escape into the mouth or in the digestive system are not harmful. In the past carbamide peroxide was used as an antibacterial mouth rinse. Glycerin anyway mainly cause diarrhea.
How much can you charge the dentist for whitening?
Bleaching is a treatment that does not cover social insurance. In whitening clinics, where over 30 minutes price may be considerably higher.
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