Teeth whitening is an aesthetic procedure that is applied in US and Western Europe for more than 40 years. Teeth whitening is an aesthetic procedure that is applied for more than 40 years in America and Western Europe.

More than 20 years of analysis and surveillance of the teeth whitening process and with complete assurance, it can be concluded that teeth whitening has no adverse effects or destructive side effects. The tooth cavity does not change, there is no demineralization and the teeth are not extracted from the loss of mineral substances. Even old inadequate bleaching systems have not shown any negative effects on the tooth and dental minerals. As these older systems have become excessive tooth whitening and then dental sensitivity is present. Peroxide is dissociated into water and oxygen active. Hydrogen has been used for more than 50 years in dentistry, and no negative effects on the teeth have been observed during its use. In the range of dental cosmetic interventions, teeth whitening is the process that convincingly produces the least pain, adverse and side effects.

The whitening effect depends on several fundamental factors. Normally, the whitening effect lasts 3 to 4 years, and after this period the teeth begin to darken. One fact is very certain that the teeth will not return to the initial color as they were before they were discolored. Always and in all cases will be whiter than they were prior to whitening. The effect of tooth whitening depends on factors, but mostly due to the consumption of products that possess color, carbonated juices and tobacco, always considering adequate maintenance of mouth and dental hygiene. Practice shows that after the patient's desire, after the third year, teeth whitening can be repeated, which will be more effective than the previous one, and in order to maintain the white tooth effect and the continuity of their brightness.

After the first whitening treatment lasting up to 3 years, it may be anticipated that the whitening process should be repeated. Some patients want this process to be repeated more often and it is ascertained that in such cases the whitening process can be applied annually without any adverse effect on the health of the patient.

After the teeth whitening process to a very small number of pacients, the sensitivity to cold, heat, drizzle and toothbrush contact appears, which appears to recede 24 hours after the teeth whitening process.