Want to straighten your teeth? Invisalign may be for you. Invisalign is a system that uses a series of clear aligners to gently move your teeth into their proper position. Straight teeth are not just for esthetics – they make it easier for you to keep your teeth clean, which reduces your risks of cavities and periodontal disease. They also align your teeth to ensure that the biting forces of your teeth are hitting your teeth properly to prevent your teeth from chipping or breaking.