InvisalignTMÂ is a new and advanced strategy for straightening teeth that uses a collection of aligners developed specifically for your teeth. These aligner trays are made of smooth, comfortable, and nearly undetectable plastic that you apply over your teeth. Using the aligners will gradually and gently shift your teeth into the correct location, based on the treatment plan designed by your dentist or orthodontist.There are no metal brackets to affix and no cords to tighten. You simply insert a new set of aligners about every two weeks, until your treatment is completed. The result is a terrific smile with little interference in your lifestyle!