What are TADs (Temporary Anchorage Devices)?
TADs are mini-screws or mini implants m
ade out of specially engineered
titanium alloys. They have revolutionized orthodontic treatment outcome due to its innumerable applications.
They are bio compatible and rarely ever cause any body
reaction. They may be of varying sizes, ranging from 6 to 12 millimetres in
length and 1.2 to 2 millimetres in diameter. They are fixed into the gums and
jawbone temporarily to improve the anchorage (support) for tooth movement and
are removed after the purpose is over.
When and why should TADs be used?
Orthodontists often use other teeth, holding arches and
headgears to control anchorage and prevent unwanted changes in certain teeth
while carrying out the desired movement of other teeth. However, there are lots
of disadvantages with these methods. They are cumbersome to place and irritating
for the patients with reduced tolerance and compliance.
orthodontists to overcome limitations of holding arches and headgear and
perform difficult tooth movements predictably improving the efficiency and
effectiveness of the orthodontic treatment.
There are several advantages of using TADs.
It can provide support for various
types tooth movement
Wide range of tooth movements
Reduces treatment time, thereby
reducing the potential risk for cavities and gum problems
· · Eliminates need for cumbersome attachments
and patient compliance
It can obviate need for surgical
procedures in certain cases
It can provide anchorage in cases
of missing teeth also.
Where are TADs placed?
TADs are placed in the bone between the roots of the
teeth and can be placed in the bone in the roof of the palate and various
locations in the jaw bones.
How is a TAD placed?
Placement is minimally invasive and often completed using only
topical anesthetic. Sometimes injection of local anaesthesia
may be required if
drilling into the bone is required. TADs are inserted directly through the gums
into the bone using long hand or short hand drivers.
Does it hurt?
There is little or no discomfort as there are no nerve endings
in the bone tissue. If it hurts, then ibuprofen or acetaminophen is prescribed
for a couple of days. Once placed, the orthodontist will able to use the TAD as
orthodontic anchorage immediately.
Who places the TAD?
As the orthodontists have the training and expertise to
place them, most of the orthodontists place TADs themselves. This ensures the
TAD is placed exactly where the orthodontist wants it. Some orthodontists may
choose to have a TAD placed by another dental specialist.
What are the instructions for preventing
loosening of TADs ?
Thorough cleansing is required to prevent food and plaque deposit around
antiseptic mouthwash is used to rinse to prevent bacterial attack over the gums
surrounding the TADs, if allowed can cause loosening of the TAD. How long are TADs left in?
It depends upon individual treatment needs and can be
discussed with the orthodontist who will decide 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.
Hurt When It Is Removed?
are simply removed when no longer needed, usually without anaesthesia and the site
heals painlessly within a few days after removal.
Can TADs be used for everyone?
TADs are placed on patients who have permanent teeth and
who are in good health. Patients with active periodontal (gum) disease may not
be ideal candidates for TADs.Dr.S.VENKATESWARANConsultant OrthodontistVenkat Dental Center3A, P.T.Rajan Salai,KK Nagar, Chennai-78,
Ph-044-24746073, 24746078, 944845443, 9003230250
Doctor Dr. Venkateswaran Sundaram, 2013081923:31:39