The color of our teeth is determined essentially by eating habits, with daily consumption of coffee, tea, soft drinks, red wine as well as smoking habits, the main causes of tooth darkening. Insufficient oral hygiene and the use of certain antibiotics (such as tetracyclines) during dental formation, also contribute to a darker dentition color.
Before choosing the most suitable technique for whitening teeth, it is essential to identify the source of the darkening. Teeth can have internal and external stains, with different ways to eliminate them.
Tooth whitening is based on the application of an oxidizing agent (hydrogen peroxide or Carbamide peroxide) that penetrates the enamel and dentin, removing pigmented stains.
Tooth whitening can be internal, on devitalized teeth, or external, on vital teeth. Vital teeth should be applied with a desensitizing gel based on Potassium Nitrate and Fluor.
External tooth whitening can be carried out using a light that activates the whitening agent or carried out at home. In the latter case, after the confection of trays made specifically for the mouth of each patient, the bleaching gel will be placed, which should be applied for 1 to 6 hours a day, for about 2 weeks.
The consequences of teeth whitening on pregnant women is not scientifically documented, but for safety reasons, we recommend that you do not do it.
During bleaching you should avoid citrus foods / beverages and many colors such as tobacco, coffee, tea, red wine, carrots, oranges, lemons, among others.