All whitening techniques act in one of two ways:

1. Bleaching Techniques change the natural tooth color, usually five to seven shades whiter. Both the bleaching is performed in the office by the professional and done at home using a bucket use a whitening compound. Bleaches contain an active ingredient, usually carbamide peroxide or hydrogen peroxide in concentrations of 10-22%, which helps remove surface stains or deep. There are significant differences in cost of various procedures used to whiten teeth:

* A session that uses laser whitening and is carried out in the dentist can cost $ 500 or more, providing immediate results and providing dramatically whiter teeth. However, after a year of food and drink (coffee, tea, soda), slightly stained teeth again. With whitening done in the office, you must pay the $ 500 to whiten your teeth again.
* A tray adapted to his mouth and made by your dentist for whitening done at home can cost around $ 300, and you can use it several hours a day or at night for two weeks. When you observe the appearance of new spots just use the bucket for a night or two to remove the stain.
* For whitening products that can be acquired mainly through pharmacies or other places can be gels that are applied with a brush, bite trays and whitening strips that can range from, $ 10 to $ 45.

2. Procedures that do not use bleaching agents: they act by physical action and / or chemistry to help remove surface stains. All toothpastes cause a mild abrasion to remove surface stains between dental visits. Whitening toothpastes have special chemical or polishing that provide additional stain removal. A professional cleaning by a dentist or hygienist also uses an abrasive compound and polish the teeth with which you can remove external stains caused by food and snuff.

Each individual responds differently to various bleaching techniques. Some people respond well to bleaching carried out using toothpastes, while people with gray teeth or more serious discoloration may require porcelain veneers (discussed elsewhere in this section) in order to achieve the smiles that ‘ve always wanted. Only your dentist can determine what is best for you.

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