A smile is often defined by the color of your teeth. Sparkling white teeth are associated with health and youthfulness, whereas stained or discolored teeth are never an asset. Through professional teeth whitening, it's now possible to lighten your teeth in a shorter period of time.

Aging and the daily stresses placed against the teeth erode the porcelain-like enamel that covers them. Habitual intake of coffee, sodas, and red wine and smoking can also stain the teeth's surface. As the teeth become more translucent, the natural color of dentin, the tooth's core material, begins to show through. The color of dentin may range from yellow-brown to greenish-grey, which intensifies as you age.

Professional teeth whitening is a cosmetic dentistry procedure performed by dentists in clinics to lighten the color of your teeth. This procedure does not make a complete color change but it will lighten your teeth's current shade. Professional whitening treatments use gels or pastes with high concentrations of peroxide, the chemical component that opens the pores of the enamel and lightens the dentin. The whitening effects are immediate, and they can last for up to one year with good dental hygiene.

Professional teeth whitening begins with removal of plaque buildups along the gum line and filling of cavities, if there are any. After a protective barrier is placed on the gums, a peroxide gel or paste is then applied to the teeth for 15 to 20 minutes. A special light is incorporated into the process to stimulate a bleaching reaction. The gel is rinsed off and reapplied several times for one hour, at the most. Your dentist may recommend you to follow this up with an at-home whitener for a specific period of time.

Professional teeth whitening is a safe procedure. But because higher concentrations of peroxide are likely to cause damage to the surrounding gums and lips, side effects may include increased tooth sensitivity and soft tissue irritation. If you have sensitive teeth, it's best to consult your dentist for options that may alleviate the sensitivity during the procedure.

Anyone who wants to achieve a healthier smile can receive this procedure. However, cavities and gum disease should be treated before teeth whitening is initiated. Keep in mind that teeth whitening does not lighten existing restorations, such as fillings, crowns, and veneers.

Professional teeth whitening costs will vary. The exact cost depends on the teeth whitening system used, skill of the dentist and the complexity of the treatment.

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