Invisalign attachments are small, tooth-colored bumps bonded to certain teeth during clear aligner treatment. They give the aligner something to grip, so it can rotate, tip or move a tooth in ways a smooth tooth surface would not allow. They are removed when treatment ends.
Many people are surprised to hear about attachments at their consultation, because clear aligners are often pictured as nothing more than trays. Here is what attachments are, why your plan may include them and what to expect from the day they go on to the day they come off.
What Are Invisalign Attachments?
Attachments are made from tooth-colored composite, the same family of material dentists use for bonding and white fillings. Each one is shaped and positioned for a specific job in your treatment plan.
Think of them as handles
An aligner works by pressing on your teeth. A tooth’s natural surface is fairly smooth and rounded, so the aligner can slip over it instead of pushing it in the right direction. An attachment adds an edge for the aligner to push against, the way a handle makes a door easier to open.
Why they come in different shapes
Some attachments are small rectangles, others are wedges or ovals. The shape and angle are chosen for the movement that tooth needs, whether that is turning, moving up or down in the gums, or tipping the root. Your orthodontist plans these digitally along with the rest of your aligner series.
Why Do Clear Aligners Need Attachments?
Not every tooth movement is a simple push. Attachments make the harder movements possible and more predictable.
Rotating rounded teeth
Canines and premolars are rounder than front teeth, which makes them hard for a plain aligner to turn. An attachment gives the tray the leverage it needs to rotate them into place.
Moving teeth up, down or at the root
Bringing a tooth down into line, or moving its root rather than just tipping the crown, takes a steady, directed force. Attachments help the aligner apply that force where it belongs.
Keeping the aligner seated
Attachments also help each aligner snap into place and stay there. A well-seated tray applies its planned force more consistently, which supports the result you were shown at the start.
Does Everyone With Invisalign Need Attachments?
No. Whether you need them, and how many, depends on the movements in your plan. Mild cases may need few or none, while cases with rotations or bite correction usually need more. The doctors will show you where any attachments would go on your digital treatment plan before you commit.
Attachments vs. buttons
Attachments are sometimes confused with buttons. Buttons are small hooks bonded to a tooth so elastics, or rubber bands, can be worn with aligners to correct the bite. Not every plan uses elastics. If yours does, our guide to orthodontic elastics explains how they work.
How Are Invisalign Attachments Put On?
Attachments are usually placed early in treatment, often at the appointment where you receive your first aligners. The process is quick and does not require numbing or drilling.
Step by step
- The teeth that need attachments are cleaned and lightly prepared so the material bonds well.
- A thin template tray, shaped like an aligner, is filled with composite at each attachment spot.
- The template is pressed onto your teeth and a curing light hardens the material.
- The template is removed, leaving the attachments in place, and any excess material is smoothed.
What it feels like
Placement is painless. Afterward, your tongue and lips will notice the new bumps for a few days. Your first aligners may feel snug as they press on the attachments, which is a sign they are doing their job.
Your plan can change along the way
Aligner treatment includes regular progress check-ins at our office. If a tooth is not tracking the way the plan expected, the doctors may adjust the next set of aligners and, occasionally, add, reshape or remove an attachment. That flexibility is part of why an orthodontist monitors aligner cases in person rather than by mail.
Are Invisalign Attachments Noticeable?
Because they are matched to the color of your teeth, attachments are hard to spot in conversation. Up close, or on teeth near the front, someone may notice a small bump. With your aligner in, they blend in further.
If you are worried about how attachments will look in photos or at work, ask to see where they are placed on your digital plan. Many sit on premolars and canines, toward the sides of the smile, because those rounder teeth are the ones that need the most grip.
How Do You Care for Teeth With Attachments?
Brushing and flossing
Plaque can collect around the edges of attachments, so take a little extra time brushing around each one. Brush and floss before putting your aligners back in, and clean the aligners themselves. Our list of Invisalign do’s and don’ts covers daily habits that keep treatment on track.
Eating and drinking
You remove aligners to eat, so attachments rarely affect what you can enjoy. Very hard or sticky foods are still worth avoiding because they can chip or loosen an attachment. Coffee, tea and red wine can stain the material over time, so rinse after drinking them.
If one falls off
An attachment can occasionally come loose. Call or text us so we can decide whether to replace it right away or at your next visit. Keep wearing your aligners in the meantime unless we tell you otherwise.
Attachments and Aligner Options at a Glance
| Question | Invisalign | Confident Aligners |
|---|---|---|
| Who designs the plan | Your orthodontist, using Invisalign’s digital system | Your orthodontist, designed and monitored in-house |
| Where aligners are made | Manufactured by Invisalign | 3D printed in our office |
| How often trays change | About every 1 to 2 weeks | Per your orthodontist’s plan |
| Are attachments used | When the planned movements need them | When the planned movements need them |
| After treatment | Attachments removed, retainer begins | Attachments removed, retainer begins |
Both options start with a 3D scan on our iTero scanner rather than impressions. You can compare them on our Invisalign and Confident Aligners page, and our post on digital scanning and 3D printing explains how the in-house system works.
How Are Attachments Removed?
When your last aligner is finished, the attachments are gently polished off with a dental instrument. It does not hurt, and your tooth surface is smoothed so it feels natural again. You will then move into retainers to hold your new smile in place. See why retainers matter for what that phase looks like.
Frequently Asked Questions About Invisalign Attachments
Do attachments damage your teeth?
When they are placed and removed by an orthodontic team, attachments are designed to come off without harming the tooth. Good brushing around them during treatment is the best way to protect the enamel underneath.
Can I get Invisalign without attachments?
Sometimes, if your case only needs simple movements. Skipping attachments that your plan calls for can make results less predictable, so it is a decision to make with your orthodontist, not around them.
Do attachments make aligners hurt more?
Aligners may feel tighter for the first day or two of each new tray, and attachments are part of that grip. The pressure fades quickly. Most people describe it as snug rather than painful.
How long will I have attachments?
Usually for the length of your aligner treatment. Most Invisalign treatment lasts 12 to 18 months, depending on your smile, and attachments come off at the end.
Talk With Our Team About Clear Aligners
Our board-certified orthodontists, Dr. Maslowski and Dr. Michel, plan every aligner case themselves, including where attachments go and why. Schedule a free consultation at our Oshkosh, Appleton or Wautoma office, or call or text (920) 231-4923 with questions. We will show you your plan before you decide.