The cost for professional teeth whitening could vary from procedure to procedure and also between 2 areas of a country. In addition it would also depend on the number of sittings required and from one dentist to the other.
Make a rough estimate requires research from websites, family and friends. The average cost for standard teeth whitening is about $300, while laser whitening could cost even more than $1000. As a general rule the price of teeth whitening increases with the number of in-office whitening treatment required by the patient.