An orthodontist's recommendation typically includes braces and a RETAINER. Braces are a type of dental appliance used to correct misaligned teeth and jaws, and they are usually made of metal or ceramic brackets that are attached to the teeth and connected with wires. A RETAINER is a removable dental appliance that helps keep teeth in their new position after braces have been removed. It is typically made of plastic and metal wires that fit around the teeth.