Invisalign’s comfortable, acrylic aligners fit snugly over teeth and exert gentle pressure to eliminate crookedness, crowding, and slight misalignments. The BPA-free acrylic is nearly invisible, so you’ll maintain a mature image throughout treatment. There’s no metal involved that can irritate sensitive oral tissues, and the aligners are removable. Take them out when you eat, brush, and floss. Pop them back in to continue straightening.