AUCan You Get Clear Aligners With Wisdom Teeth?
Most people can start clear aligners with their wisdom teeth still in place. The exceptions are wisdom teeth that are painful, infected, pressing on the tooth in front, or already booked in to come out. Here's how to tell which group you're in, and how to get the timing right.
If you're in your late teens or twenties and thinking about straightening your teeth, your wisdom teeth are probably part of the picture. It's natural to wonder whether you can start clear aligners with wisdom teeth still in place, and whether they'll push everything crooked again afterwards. The reassuring news is that wisdom teeth and aligners can usually coexist. What matters is whether your wisdom teeth are healthy and settled, and getting the order right if they aren't.
Key takeaways
- Wisdom teeth don't rule out aligners. Healthy wisdom teeth that aren't causing symptoms usually don't need to be removed before treatment.
- Problem wisdom teeth come first. Pain, swelling, infection or a planned extraction should be sorted out before you take your impressions.
- They aren't the main cause of crowding. The Australian Dental Association says there is currently no evidence that wisdom teeth make other teeth crooked.
- Retainers protect your result, not extractions. Teeth can shift throughout life whether or not you have wisdom teeth.
- Let healing set the timetable. After wisdom teeth removal, start or restart aligners only when your dentist or surgeon says you're ready.
Can you get clear aligners with wisdom teeth?
The fact: Yes, in most cases. Wisdom teeth that are healthy, symptom-free and not due to be removed generally don't stop you starting clear aligners.
Clear aligners work by applying gentle, planned pressure to specific teeth. Wisdom teeth sit at the very back of the mouth, so having them doesn't automatically get in the way.
What matters more is how your wisdom teeth are behaving. Three questions cover most situations:
- Is a wisdom tooth causing a problem right now? Pain, swollen gum or repeated infections at the back of your mouth need attention first.
- Is it likely to change during treatment? A wisdom tooth that is still coming through can alter how an aligner sits at the back.
- Has your dentist recommended removal? If an extraction is on the cards, it's far easier to have it done before your aligners are made.
If the answer to all three is no, you can usually go ahead. If any answer is yes, get it sorted first. That's Smileie's approach too: if your dentist says your wisdom teeth don't need to come out, you're fine to start.
A dentist can confirm this quickly. An X-ray shows the position and angle of each wisdom tooth, whether it has room to come through, and whether the gum and the molar in front are healthy.
Wisdom teeth basics: what they are and why they cause trouble
The fact: Wisdom teeth are your third molars. They usually come through between 18 and 25, and not everyone gets them.
According to healthdirect, Australia's government-funded health information service, wisdom teeth are the last teeth to appear and usually grow through the gums at around 18 to 25 years of age. You can have up to four, but they may only partly come through or never appear at all, and some people don't have any.
The trouble starts when there isn't enough room. The Australian Dental Association explains that wisdom teeth are often impacted, meaning something is stopping them from pushing all the way into the mouth. Most commonly, that something is a lack of space in the jaw.
Between them, the two sources list problems including inflamed gum around a partly erupted tooth (pericoronitis), infection, decay because the area is hard to clean, pressure on the tooth in front, cheek biting and, sometimes, cysts.
Do wisdom teeth cause crowded teeth?
The fact: The evidence says wisdom teeth are not the main cause of crowding, and removing them won't guarantee your teeth stay straight.
It's a persistent belief: wisdom teeth come through, push everything forward, and the front teeth end up overlapping. It sounds logical, but the evidence doesn't back it up.
The Australian Dental Association states that there is currently no evidence to support the theory that wisdom teeth cause other teeth to become crooked. The Australian Society of Orthodontists makes the same point, noting that many studies have found wisdom teeth are not the primary cause of dental crowding. It also points out that up to 25% of people are missing their wisdom teeth altogether, and they still develop the same crowding later in life.
What the research shows
A 2020 Cochrane review looked at whether impacted wisdom teeth that are free of symptoms and disease should be removed or left alone. It found only two suitable studies, involving 493 people, and concluded there was not enough evidence to decide. The one study that measured crowding found it may not be significantly affected either way.
A 2023 systematic review in Dentistry Journal focused on people who had already had orthodontic treatment. Across the 10 studies it included, the vast majority found no statistically significant link between having wisdom teeth and lower front teeth crowding again. The authors noted a minor effect has been suggested and many studies were at high risk of bias, but found no adequate evidence to support removing wisdom teeth just to keep teeth stable.
So why do teeth get more crowded with age?
The Australian Society of Orthodontists lists several reasons teeth shift over time, with or without wisdom teeth:
- Mesial drift. Teeth move very slightly towards the front and centre of the mouth over a lifetime.
- Late lower jaw growth. This can tip the lower front teeth inwards.
- Soft tissue changes. The elasticity of the cheeks and lips changes, and the tongue applies pressure too.
- Loss of support. Gum disease can reduce the gum and bone that hold teeth in place.
So don't ask for healthy wisdom teeth to be removed purely to protect a straight smile. If your front teeth already overlap, our guide to clear aligners for crowded teeth explains how that's treated, and if they've moved after earlier orthodontic work, see teeth shifted after braces.
When wisdom teeth should be sorted before aligners
The fact: Active problems and planned extractions come first, because aligners are made to fit your mouth exactly as it is on the day of your impressions.
- Wisdom teeth are fully through, healthy and easy to clean
- Wisdom teeth are under the gum with no symptoms, and your dentist is happy to monitor them
- Wisdom teeth were removed and the area has healed, or never developed
- Pain, swelling or a bad taste at the back of your mouth
- A partly erupted wisdom tooth with gum that keeps flaring up
- Your dentist has recommended removal or referred you to a surgeon
- A wisdom tooth angled against the tooth in front
- Decay in a wisdom tooth or the molar next to it
Why the order matters
Your aligners are made from a mould of your teeth. If a wisdom tooth is removed, or moves further through the gum, after your impressions are taken, the back of your mouth is no longer the shape your trays were built for.
There's a practical side too. After wisdom tooth surgery, your jaw can be sore and swollen for a while, which makes it hard to wear aligners for the hours they need. Teeth that miss wear time can fall behind, and the next tray may not seat properly, as we cover in clear aligners not fitting.
And an infected or decayed wisdom tooth needs treatment whether or not you're straightening your teeth.
What if a wisdom tooth comes through during treatment?
The fact: It can happen, especially in younger adults. Tell your dental team early instead of pushing through.
Wisdom teeth usually appear some time between 18 and 25, and aligner treatment runs for months, so the two sometimes overlap.
Aligner pressure or wisdom tooth pain?
- A tight, achy feeling across the teeth being moved
- Starts when you switch to a new tray
- Eases over the first few days
- Soreness right at the back, behind your last tooth
- Red, swollen or tender gum in that spot
- A bad taste, or trouble opening your mouth wide
If it's ordinary aligner tenderness, our discomfort tips will help. If it looks more like a wisdom tooth, here's what to do:
- Keep the area clean. healthdirect suggests gentle brushing, an antibacterial mouthwash and salt water rinses for wisdom tooth pain. Clean your aligners before putting them back in.
- Book in with your dentist. They can check whether the tooth has room to come through and whether the gum is infected.
- Tell your aligner team. Send clear photos of the back of your mouth and say which step you're on.
- Don't trim the tray yourself. Cutting the plastic can change how it grips your teeth.
Remember this: healthdirect advises seeking urgent dental care if you think you have an infection, or you have severe swelling or severe pain.
If a wisdom tooth changes the fit at the back, your plan can be adjusted with more time in your current tray or a refinement with new impressions.
Clear aligners after wisdom teeth removal
The fact: You can straighten your teeth after extractions. The right time to start is when the person who did the procedure says you've healed enough.
Recovery is usually quick. healthdirect's guide to removing wisdom teeth says you should be able to go home the same day, may need up to a week off work, and should be able to return to normal activities within a week.
Feeling back to normal is not the same as being fully healed, though. One complication to know about is dry socket, which the Victorian Government's Better Health Channel describes as the area where the tooth came from not healing properly, causing severe pain and a bad smell.
If you haven't started aligners yet
Wait for the all-clear, then take your impressions. There's no single waiting period that suits everyone, because simple and surgical extractions heal differently. Ask your dentist or surgeon directly: "When is it safe for me to take dental impressions and wear aligners?"
If you're already in treatment
- Tell both teams. Your surgeon should know you wear aligners, and your aligner team should know your surgery date.
- Ask when to put them back in. Follow your surgeon's instructions on wearing your trays after the procedure.
- Keep your previous tray. If you've had a break, your current tray may feel very tight. Your dental team may suggest stepping back for a while.
- Check the fit. If a tray won't seat properly once you're wearing it again, contact your team before moving to the next one.
Wisdom teeth, retainers and keeping your result
The fact: Retainers are what keep teeth straight after treatment. Wisdom tooth removal is not a substitute.
The Australian Society of Orthodontists says that once orthodontic treatment ends, teeth will always have some potential to move out of position. Its advice is to wear a retainer exactly as prescribed, which is generally every night for the long term.
That holds true with or without wisdom teeth. If a wisdom tooth comes through after you've finished treatment and your retainer starts to feel tight or sit differently at the back, don't force it. Have the tooth checked. Our guide on why you still need retainers after aligners explains how retention works.
How Smileie handles wisdom teeth at your assessment
The fact: Tell us about your wisdom teeth up front, so your plan is built around what's really happening at the back of your mouth.
Every Smileie treatment starts with a free smile assessment, followed by an at-home impression kit. Your treatment is planned and supported by our team of dentists and orthodontists. See how each stage works in at-home clear aligners in Australia.
When you get in touch, tell us whether you still have your wisdom teeth, any symptoms at the back of your mouth, what your dentist has said about them, and any extraction dates.
If your wisdom teeth are stable and your dentist is happy to leave them, you can move ahead. If an extraction is planned, it's usually better to have it done and heal first.
Free smile assessment
Not sure if your wisdom teeth are a problem?
Start with a free Smileie smile assessment. Tell us about your teeth, including your wisdom teeth, and our dental team will let you know whether at-home clear aligners are right for you and when to begin.
Common questions
- Do I need my wisdom teeth removed before clear aligners?Not usually. Healthy wisdom teeth that aren't causing symptoms generally don't need to come out first. If one is painful, infected, impacted against the tooth in front or already recommended for removal, have that dealt with before you start.
- Can wisdom teeth ruin my aligner results?Wisdom teeth are not considered the main cause of crowding. The Australian Dental Association says there is currently no evidence that they make other teeth crooked. Teeth can shift for other reasons, which is why wearing your retainer as prescribed matters most.
- Can I wear aligners while my wisdom teeth are coming through?Often, yes, if the tooth has room and the gum is healthy. If you get pain, swelling or a bad taste at the back of your mouth, or your tray feels different at the back, see your dentist and tell your aligner team.
- How soon after wisdom teeth removal can I start clear aligners?It varies, because simple and surgical extractions heal at different rates. healthdirect says you should be able to return to normal activities within a week. Wait until your dentist or surgeon confirms it's safe to take impressions and wear aligners.
- Will I need new aligners if a wisdom tooth is removed mid-treatment?Possibly. If your trays still fit well once you've healed, you may be able to carry on. If they no longer seat properly, your dental team may arrange new impressions and a refinement.
- Should I have my wisdom teeth out to stop my teeth crowding again?Not for that reason alone. A 2023 systematic review found no adequate evidence to support removing wisdom teeth to keep teeth stable after orthodontic treatment. Retainers are the recommended way to hold your result.
Sources: healthdirect, Wisdom teeth and Removing wisdom teeth; Australian Dental Association, Wisdom teeth; Australian Society of Orthodontists, Teeth shifting: signs, causes, prevention and treatment; Better Health Channel, Wisdom teeth; Ghaeminia H, et al. Surgical removal versus retention for the management of asymptomatic disease-free impacted wisdom teeth. Cochrane Database of Systematic Reviews. 2020;(5):CD003879; Lyros I, et al. The effect of third molars on the mandibular anterior crowding relapse: a systematic review. Dentistry Journal. 2023;11(5):131.
This article provides general information, not individual dental advice. Aligner suitability, side effects and treatment time vary from person to person. A dentist or orthodontist should assess your teeth, gums and bite and supervise your care.
← More clear aligner articles
