Orthodontic miniscrews, known as temporary anchorage devices or TADs, are small titanium screws placed in the jaw to give braces or aligners a fixed point to push against. They sound dramatic but they are a routine, minor part of modern orthodontics, and they often replace bulky external appliances like headgear. Studies report success rates commonly in the range of about 83 to 90 percent, which means they hold reliably for most patients, and when one does loosen it can usually be replaced easily.
This guide explains what a TAD is, why an orthodontist might use one, how reliable they are, and what placement and removal feel like.
Key takeaways
- TADs are small titanium screws that act as a fixed anchor for moving teeth.
- They let the orthodontist move specific teeth without unwanted movement of others.
- They often avoid the need for headgear or other external appliances.
- Success rates are commonly around 83 to 90 percent; a loose one can usually be replaced.
- Placement is quick and done under local anaesthetic, and they are removed once their job is done.
The anchorage problem TADs solve
Orthodontics works on a simple principle: to move a tooth, you have to push against something. Traditionally that something was other teeth, but Newton's third law applies in the mouth too. Pushing one tooth forward tends to pull the anchor teeth backward, which is not always what you want. This is the anchorage problem.
A TAD fixes it by providing an anchor that does not move, because it is screwed into bone rather than attached to teeth. That lets the orthodontist move only the teeth they intend to, with no give-back from the anchor. It is the difference between pulling a rope tied to a parked car and one tied to a tree.
What orthodontists use TADs for
- Closing spaces after extractions while keeping the front or back teeth exactly where they are
- Pulling back protruding front teeth without losing back-tooth position
- Intruding teeth, for example pushing over-erupted teeth back into line
- Uprighting tilted teeth or moving a tooth that has drifted
- Avoiding headgear, since a TAD can provide similar anchorage discreetly inside the mouth, as discussed in our guide to orthodontic headgear
TADs are used with both braces and clear aligners, complementing the approaches we cover in how to straighten crooked teeth.
How reliable are TADs?
The evidence is reassuring. Across many studies, overall success sits commonly around 83 to 90 percent, with some reporting failure rates near 10 to 16 percent. Where the screw is placed matters: miniscrews in the palate tend to have the highest survival, often above 90 percent, while certain other sites are less predictable. The main reasons a TAD loosens are inflammation of the gum around it, loading it too early, and lower bone density at the site. Keeping the area clean is the single biggest thing a patient can do to help a TAD stay put. Reassuringly, a loose TAD rarely causes harm and can usually be removed and replaced at a nearby site.
What placement and removal feel like
Placing a TAD takes only a few minutes. The area is numbed with local anaesthetic, and the screw is inserted through the gum into the bone. Most patients report pressure rather than pain, and because the screw sits in bone with limited nerve supply, the discomfort afterward is usually mild and short-lived. Over-the-counter pain relief is generally all that is needed for a day or two.
The TAD stays in place only as long as it is needed, often several months. Removal is even quicker than placement and usually does not require anaesthetic. The small site heals over on its own within a short time.
Caring for a TAD
- Brush gently around the screw twice a day to keep the gum healthy.
- Use an antibacterial or saltwater rinse if your orthodontist recommends it.
- Avoid poking or playing with it with your tongue or fingers.
- Tell your orthodontist promptly if it feels loose or the gum becomes sore or swollen.
General cost in Australia
TADs are usually an add-on within a wider orthodontic plan rather than a standalone fee. The figures below are general market ranges, not a quote.
| Item | Typical Australian range | Notes |
|---|---|---|
| Per miniscrew (placement) | $300 to $700 | Often included in a treatment plan |
| Full braces or aligner treatment | $6,000 to $9,000+ | TADs add to this when needed |
The team at Lumi Dental does not list its own prices here. For current options and a written quote, see our current offers or our general dentistry page.
Frequently asked questions
Do orthodontic miniscrews hurt?
Placement is done with local anaesthetic and most people feel pressure rather than pain. Afterward there is usually only mild soreness for a day or two, managed with over-the-counter pain relief.
How long does a TAD stay in?
Only as long as it is needed to do its job, often several months. Once the planned tooth movement is achieved, the screw is removed in a quick appointment and the site heals on its own.
What happens if a miniscrew comes loose?
A loose TAD is common enough and rarely a problem. It is removed, the area is allowed to settle, and a new screw can usually be placed nearby. Good cleaning around the screw reduces the chance of it loosening.
Are TADs the same as dental implants?
No. Both are titanium, but a TAD is small, temporary, and designed to be removed once treatment is done. A dental implant is larger, permanent, and fuses to bone to replace a missing tooth.
The bottom line
Orthodontic miniscrews are a small, reliable tool that gives an orthodontist precise control over which teeth move, often sparing patients from headgear and shortening or simplifying treatment. Placement and removal are quick, discomfort is minor, and success rates are high. If you are starting orthodontic treatment and want to understand whether TADs might be part of your plan, the team at Lumi Dental in Melrose Park can talk you through it. See our current offers to book a consultation.
