What is the procedure when having your teeth whitened and the costs involved?

Dental procedure for whitening of your teeth?
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First you have to have your teeth cleaned the usual way. Then they make an impression of your teeth so that they can make a silicone frame in which you will be able to place the whitening material. When the frame is all ready, my experience was that the dentist performed the first whitening treatment. Then you get some whitening agents in a tube or syringe so that you can perform the treatments at home, two times a day for half an hour. All in all, the whole story takes about 3-4 weeks depending on the condition of your teeth. I was advised not to do the whitening treatment more than once as it weakens the tooth enamel. Also I was advised, in order to maintain the results, to use a whitening toothpaste. I am sure that the costs vary from area to area; I paid $400.
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