Dental whitening is a cosmetic dental procedure to improve the smile. This procedure is no longer a rarity, being required increasingly more often in dental offices. Of course, several whitening products appeared on the market, with more or less noticeable results: from toothpastes, whitening gels for home to strictly professional products used in surgeries. Like any therapeutic method this procedure has its indications and contraindications. People with sensitive teeth, with exposed roots or swollen gums or who have medical contraindications for dental whitening. Also, teeth with the erosion of enamel, with untreated cavities fall into the same category of contraindications.
This process still has its limits. Dental whitening has no effect on fillings, veneers, crowns or prosthetic bridges. In these cases there is a difference of colour, unsightly, which is undesirable. The teeth with tetracycline stains or fluorosis spots respond very little or at all to teeth whitening procedure.
The active substance of whitening products is hydrogen peroxide and its concentration i professional products reaches up to 35% -40%. After the whitening treatment, gum irritations and pronounced sensibility of the teeth can occur. These effects are temporary and disappear within 1-3 days following the treatment.