Braces use steady gentle pressure to gradually move teeth into their proper positions. The brackets that are placed on your teeth and the archwire that connects them are the main components. When the archwire is placed into the brackets, it tries to return to its original shape. As it does so, it applies pressure to move your teeth to their new, more ideal positions. The same effect is now possible with Invisalign clear aligners, which puts gentle pressure on your teeth to move them gradually into an aligned position.