Tooth whitening lightens teeth and helps to remove stains and discoloration. Whitening is among the most popular cosmetic dental procedures because it can greatly improve how your teeth look. Most dentists perform tooth whitening. The outer layer of a tooth is called the enamel. The color of natural teeth is created by the reflection and scattering of light off the enamel, combined with the color of the dentin under it. Your genes affect the thickness and smoothness of the enamel. Thinner enamel allows more of the color of the dentin to show through. Having smoother or rougher enamel also affects the reflection of light and therefore the color. Dental Whitening is not a one-time procedure. It will need to be repeated from time to time if you want to maintain the brighter color. Tooth whitening is ideal for people who have healthy, unrestored teeth (no fillings) and gums. Individuals with yellow tones to their teeth respond best. But this cosmetic procedure is not recommended for everyone. There are many teeth whitening systems and products including whitening toothpastes, over-the-counter gels, rinses, strips, trays, and whitening products obtained from a dentist. Tooth whitening is a simple process. Whitening products contain one of two tooth bleaches (hydrogen peroxide or carbamide peroxide). A tooth bleaching breaks stains into smaller pieces, which make the color less concentrated and your teeth brighter. Some whitening agents are activated by a laser light, special lights or by the heat from these lights. After the whitening agent is applied, the dentist will shine the light on your teeth. If they are badly discolored, your dentist may suggest that you continue the bleaching process at home for a few days or weeks.
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