free agent. 1. a person who is self-determining and is not responsible for his or her actions to any authority. 2. a professional athlete who is not under contract and is free to auction off his or her services and sign a contract with the team that offers the most money.
No home teeth whitening product gets better reviews than Crest 3D Whitestrips -- and the best of the best, reviewers say, is the Professional Effects series. While the claim that it removes 14 years of stains may be a bit of hyperbole, the fact is that you will get noticeably whiter teeth if you use these gel strips.
1 In-office, professionally applied tooth whitening products contain hydrogen peroxide in concentrations ranging from 15% to 43%. 2  Mouthpiece trays. 3  With dentist-supervised at-home bleaching products, your dentist will take an impression of your teeth and make a mouthpiece tray that is customized to exactly fit your teeth.n-office bleaching provides the quickest way to whiten teeth. With in-office bleaching, the whitening product is applied directly to the teeth. These products can be used in combination with heat, a special light, or a laser. Results are seen in only one, 30- to 60-minute treatment.