Undergoing a teeth bleaching treatment in your dentist’s office is typically the quickest way to achieve your smile goals. Since the procedure takes place in the office, your dentist can use a higher concentration of peroxide for more dramatic results. A professional teeth whitening treatment can cost between $300 and $1,000. The overall price of your treatment will depend on the brand of whitening gel used as well as any advanced tools incorporated into treatment. For example, certain treatments, such as laser whitening, will cost significantly more than traditional methods.