The essence of the process is to create the proper conditions for the course of the chemical reaction. Light emission acts as its catalyst. External impact on the teeth has the purpose to stimulate the production of reagents, clarifying surfaces.

The role of bleach during the procedure is played by hydrogen peroxide. The key to high product efficiency is its high concentration. Exposure to hydrogen peroxide or UV light leads to the formation of a special form of oxygen with a high activity. It penetrates inside the tissue, contributing to its bleaching.

There are three main types of photobleaching:.

Using LEDs (characterized by a high degree of safety due to the fact that the LED elements do not have a thermal effect on the teeth);.

Halogen (stimulation of the production of clarifying agents is realized as a result of the use of a halogen radiator);.

UV (as a result of exposure to ultraviolet a significant heat energy is released - the method is characterized by the highest possible efficiency).

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In general, bleaching takes up to one hour. The procedure is performed in the dental office in three stages.

First: preparatory. Teeth need to be cleaned of tartar, plaque.

The initial color of the enamel is determined by the VITA scale (standardized). After discussing the desired result.

Second: the isolation of the patient's lips and cheeks with a retractor. Tooth surfaces should be carefully dried, the gum is treated with a protective composition. The active gel is applied to the teeth with a thin even layer.

Third: irradiation of the gel applied to the enamel. Light exposure lasts for 10-20 minutes. Remains of gel remove. If necessary, the procedure is repeated.