Invisalign® straightens your teeth with custom-made aligner trays. These aligners are made out of clear plastic and fit comfortably over your teeth. Dr. Tinkle will plan out how long the process will take for you and give you your first set of aligners. Then, every two weeks, you'll trade out your old aligner trays for new ones. With each new set of aligners, your teeth will gradually shift until they are straight and the treatment ends.