Clear aligner attachments explained

If you are about to start clear aligner treatment, your dentist may have mentioned "attachments". These small tooth-coloured bumps are a normal part of many treatment plans. Aligner attachments help your aligners move teeth more precisely, and understanding them makes the first few days of treatment much easier.

What are aligner attachments?

Attachments are small shapes made of tooth-coloured composite, the same type of material used for white fillings. They are bonded onto the surface of selected teeth. They are not the same as brackets on braces: they are much smaller, matched to your tooth colour, and there are no wires.

Each attachment has a specific shape and position chosen during treatment planning. Some are rectangular, some are bevelled or angled, and some are designed for a particular movement.

Why do aligners need attachments?

An aligner moves teeth by pressing on them. Teeth are smooth and rounded, so for some movements the aligner needs something extra to push against. Attachments act like handles. They help with:

• Rotations: turning a tooth, especially rounded teeth like canines and premolars
• Extrusion: bringing a tooth down or up, for example when closing an open bite
• Root movement: moving the whole tooth rather than just tipping it
• Retention: helping the aligner stay firmly seated, which matters when elastics are used

Not every tooth needs one, and some simple cases need none at all. Your dentist decides based on your plan.

How attachments are planned at Alignova

Attachments are designed into the treatment plan from the start. When your dentist submits your scan, our lab prepares an orthodontist-reviewed 3D setup that shows where each attachment goes and its shape. Your dentist reviews this, can ask for attachments to be added, removed or changed, and approves the plan before anything is made. Read about the planning and manufacturing process.

How aligner attachments are placed

Attachments are usually placed at the appointment when you receive your first aligners. The process is quick and does not need an injection.

1. The teeth are cleaned and dried.
2. The tooth surface is lightly prepared so the material bonds.
3. A special template tray, filled with composite in the right shapes, is placed over the teeth.
4. The material is set with a curing light.
5. The template is removed and any excess is tidied away.

You may feel the attachments with your tongue for the first few days. Most people stop noticing them quickly. Your teeth may feel a little sore for a day or two after the first aligner goes in, which is normal pressure rather than a problem with the attachments. Read do clear aligners hurt? for what to expect.

What attachments feel and look like

Because they are tooth-coloured and small, attachments are hard to see from a normal speaking distance. With the aligner in, they are even less noticeable. Putting aligners in and taking them out takes a little more effort at first because the aligner grips the attachments. This snug fit is a sign the aligner is working.

Other features designed into your aligners

Attachments are one of several auxiliaries a plan can include. Depending on your case, your dentist may also prescribe:

• Bite ramps, small raised areas that help correct a deep bite
• Elastic cutouts and precision hooks, which let you wear small rubber bands between the upper and lower aligners
• Pontics, tooth-coloured fillers that hide the space of a missing tooth during treatment
• IPR, gentle polishing between some teeth to create space, planned in stages

Alignova aligners use a tri-layer material with a hard clear outer shell, an elastic core and a smooth inner shell, designed to apply gentle, consistent force over the attachments. You can read more about our product.

Caring for attachments

• Brush carefully around them: plaque can collect at the edges. Take extra time around each one. See our guide to caring for clear aligners.
• Watch for staining: tea, coffee, paan and turmeric-rich curries can stain the edges of attachments. Rinse after eating and brush before putting aligners back in.
• Remove aligners carefully: start from the back teeth and work forwards, using your fingertips rather than your nails.
• Avoid very hard foods: biting hard things without aligners can occasionally knock an attachment off.

What if an attachment falls off?

It happens occasionally. Keep wearing your aligners, and contact your dentist so they can replace it. A missing attachment can affect how well a tooth moves, so it should not be left for long. If your dentist uses the Alignova patient app, the photos you send at each aligner change can help them spot a missing attachment or a poorly fitting aligner. AI-assisted photo analysis is in development and not yet live. Learn more about aligner monitoring.

Removing attachments after treatment

At the end of treatment, your dentist polishes the attachments off with dental instruments. It is painless and the tooth surface is smoothed afterwards. Then you move on to retainers. Read about retainers after aligners.

Frequently asked questions

Do aligner attachments hurt?

Placing them is not painful. Teeth may feel some pressure when a new aligner is fitted over them, which is normal.

Can I have aligners without attachments?

Some simple cases need none. If your plan needs them, leaving them out can make certain movements less predictable. Your dentist will explain why each one is there.

Do attachments damage teeth?

They are bonded to the surface and polished off at the end. Your dentist takes care to protect the enamel.

Are attachments visible?

They are tooth-coloured and small, so they are usually hard to notice, especially with the aligner in.

Clear aligners are a prescription treatment. Whether they suit you is decided by a licensed dentist or orthodontist after an examination.

Take the free smile check and a partner dentist will contact you about an assessment.