Braces are the most common appliance used in correcting the alignment of the teeth. They place constant gentle pressure on the teeth, leading to their movement over time. The primary elements of braces are the brackets and the wires. The brackets are the parts fixed to the teeth while the wires connect them and direct the pressure.
Elastics are also an important component. There are two types used: those that are ties around the brackets and those that exert the force needed to place pressure on the teeth. These are changed daily.