Conventional Orthodontic is the best known orthodontic technique where it uses metal brackets bonded to the front of each tooth and anchored together with an arch wire.
Invisalign is able to fix crooked teeth, crowded teeth, overlapping teeth, or teeth with gaps between them by Align Technology using SmartTrack® material.
Retainers are most commonly needed after braces come off so that the bone that holds the teeth can rebuild after the teeth have moved.