Invisalign® is a cutting edge method to help you get straight teeth without noticeable, painful metal braces. Invisalign® aligners are made of a strong, clear plastic that gradually guides your teeth into perfect alignment. Tooth impressions are made and used to create a series of custom, clear plastic aligners that will slide directly over your teeth. Aligners are replaced every two weeks as your teeth shift into place. Normally, aligners are worn full time, except when eating or drinking, for 6 to 48 months. Invisalign® aligners are comfortable and virtually invisible.