If the major purpose of the treatment is the dental displacement, most commonly a fixed multibracket therapy is used. In such terms orthodontic wires are inserted into dental braces, which can be made from stainless steel or a more esthetic ceramic material.
Besides there are many other devices that can be used to move teeth, for instance: removable appliances, or "plates", headgear, expansion appliances. Functional and orthopaedics appliances are used in growing patients (age 5 to 14) with the intention to modify the jaw dimensions and relationship if these are changed. This therapy is commonly followed by a fixed multibracket therapy to align the teeth and refine the occlusion.
As a course of active orthodontic treatment is being completed, patients will frequently wear retainers, which will uphold the teeth in their improved position while the surrounding bone reforms around them. The retainers are generally worn permanently for a short period of time, possibly from 6 months till 1 year. Then they are worn from time to time, usually at night during sleep, in accordance with the orthodontist recommendations. Nevertheless it is possible for the teeth to stay aligned without regular retainer wear. There are many reasons when teeth will crowd as a person ages. Consequently there is no guarantee that teeth, orthodontically treated, will stay aligned without retention. That's why, many orthodontists advice periodic retainer wear for several years after orthodontic treatment.