
Invisalign® | Damon® System | TMJ-TMD | Surgical Orthodontics | TADs

Courtesy American Association of Orthodontists
Temporary anchorage devices (TADs) for orthodontic anchorage are now widely accepted in everyday orthodontic practice. They are changing the way orthodontists treat some patients' malocclusions. TADs provide a fixed point from which to apply force to move teeth. They can be placed in many different sites in the mouth. Placement is customized for each patient. TADs may contribute to predictable results, shorter treatment time and completion of active treatment on schedule. They can also be used in some cases to prevent the need for jaw surgery.
TADs are titanium-alloy mini-screws, ranging from 6 to 12 millimeters in length and 1.2 to 2 millimeters in diameter. They are fixed to bone temporarily to enhance orthodontic anchorage. Titanium alloys have been used as joint replacements and for dental implants for many years. These alloys are not rejected by the body. Orthodontists often use holding arches, also known as space maintainers, and headgear to control anchorage and minimize the movement of certain teeth while carrying out the desired movement of other teeth. TADs allow orthodontists to overcome limitations of holding arches and headgear and perform difficult tooth movements predictably. TADs can also provide a point of anchorage for patients with missing teeth.

Courtesy AAO
TADs are placed in the bone between the roots of the teeth and can be placed in the bone in the roof of the mouth as well.
The site for the TAD is selected.

Courtesy American Association of Orthodontists
The TAD immediately after placement.

Courtesy American Association of Orthodontists
A TAD serves as an anchor to perform difficult tooth movement predictably
Courtesy American Association of Orthodontists
Placement is minimally invasive and often completed using only topical anesthetic. TADs are inserted directly into the bone using a special instrument. There is little or no discomfort because there are no nerve endings in the bone tissue. Once placed, Dr. Organ is able to use the TAD as orthodontic anchorage immediately. Because of the possibility that TADs can loosen or fall out, patients should avoid picking or pulling at the TAD. If the TAD does become loose or come out, call our office as soon as possible.
Because orthodontists have the training and expertise to place them, Dr. Organ prefers, in most cases, to place TADs himself. This ensures the TAD is placed exactly where he wants it. Occasionally, Dr. Organ may choose to have a TAD placed by another dental specialist (surgeon or periodontist).
Dr. Organ will advise you about how long a TAD will be needed. It may be required only for a few months, or it may be needed throughout your orthodontic treatment. TADs are versatile and may be used in different areas of the mouth during different parts of treatment.
TADs are placed on patients who have permanent teeth. Patients with active periodontal (gum) disease may not be candidates for TADs.