Millions are smiling with confidence thanks to clear Alligners. Without brackets or wires, Smile art clear aligner treatment takes a modern approach to teeth straightening and is virtually invisible so others can’t see it. It is made of smooth, comfortable, clear plastic that you simply wear over your teeth. Within several months of constant wear, your teeth will gradually be straightened and tightened as you desire. The best part of it, most people don’t know you are wearing brackets.