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2 Most commonly used & effective bleaching agent
Author : TeethWhiteningBest.com         The 10 best selling teeth whitening products for home

The proper bleaching agent is the most important key to have a successful teeth whitening experience. There are several different bleaching agents on the market, carbamide peroxide and hydrogen peroxide are more effective than others.

1. Carbamide peroxide
   Carbamide peroxide is a compound composed of hydrogen peroxide and urea. It is generally considered to be the most effective bleaching agent, and is used by most dentists. In the presence of water carbamide peroxide breaks down into its component parts, thus providing the hydrogen peroxide needed to perform the tooth whitening process, The reason carbamide peroxide is used in whiteners is because it is a relatively more stabile molecule than hydrogen peroxide.
    

Dosage : The whitening gel will usually contain from 10-22% carbamide peroxide. Any less than this will be ineffective, and a higher concentration will cause gum and teeth irritation for many people. For this reason, the most popular bleaching agents contain a 10-16% concentration.


Risks : The appropriate use of dentist-monitored at-home teeth whiteners containing 10% carbamide peroxide have not been shown to produce a carcinogenic risk. Studies evaluating 10% carbamide peroxide whiteners have found minimal or no effect on the microhardness or mineral content of tooth enamel surfaces.

2. Hydrogen peroxide
   Hydrogen peroxide is a highly reactive chemical containing hydrogen and oxygen and it is sold as a household antiseptic. Hydrogen peroxide is another effective bleaching agent, which is stronger than carbamide peroxide. Usually it comes in a brown bottle and has a concentration of 3%.
   
   
   Dosage : The use of tooth whiteners containing up to 0.1% hydrogen peroxide is safe.
   
   
   Risks : Swallowing a large dose of hydrogen peroxide can be lethal.
   Mouth rinses that contain small amounts of hydrogen peroxide and are used once or twice per day do not seem to harm the inside of the mouth, even in the long term.
   There is not enough data to evaluate potential effects of hydrogen peroxide on reproduction and development.