Written by Dr. Adriana Leone, DMD, founder of Wall Street Dental Spa · Medically reviewed October 2026
The most common reasons you may not qualify for Invisalign include active gum disease, untreated cavities, a severe jaw discrepancy that needs surgery, large tooth rotations or vertical movements, and not being able to wear aligners 20 to 22 hours a day. Most of these are temporary. You can treat gum disease and decay first, and many complex bites can still use Invisalign with attachments, elastics, or surgery.
Invisalign is ruled out when your gums, teeth, or jaws can’t safely handle tooth movement, or when the movement your case needs is something aligners do poorly.
That’s the short version.
In my practice, I sort disqualifiers into three groups. Some mean “not yet,” some mean “not with aligners alone,” and a few mean Invisalign isn’t the right tool for you.
| Type | Examples | What usually happens next |
|---|---|---|
| Not yet | Active gum disease, untreated cavities, broken teeth, loose fillings | Treat the problem first, then start Invisalign |
| Not with aligners alone | Severe jaw discrepancy, large rotations, big vertical movements, some extraction cases | Invisalign with attachments, elastics, or surgery, or braces instead |
| Can't be moved | Dental implants, fused (ankylosed) teeth, teeth joined by a bridge | Plan around them, or replace the bridge with separate crowns |
| Not a good fit | Can't wear aligners 20 to 22 hours a day | Braces, which don't depend on daily wear |
I’ve treated more than 500 Invisalign cases in my Manhattan practice. In my experience, being turned away outright is uncommon. Far more patients need something taken care of first, or a plan that combines aligners with other tools.
Active gum disease is one of the most important reasons to delay Invisalign, because moving teeth through inflamed gums and weakened bone can make the damage worse.
Teeth move through the bone around their roots. When gum disease has caused bone loss, each tooth has less support, and moving it without treating the infection first adds stress to tissue that’s already struggling.
That doesn’t mean a history of gum disease rules you out for good. At a 2021 session of the European Federation of Periodontology, experts said orthodontic treatment is possible even in severe periodontitis, as long as periodontal therapy is completed first and inflammation stays under control.
In practical terms, I look for:
Receding gums need a closer look too. Some recession can be treated with a procedure like Pinhole gum rejuvenation, and the order of treatment depends on how the teeth need to move.
Untreated cavities and broken teeth usually delay Invisalign rather than rule it out.
Aligners cover your teeth for most of the day. A cavity under that plastic can grow without anyone noticing until your next exam, so I treat decay first.
The same goes for cracked teeth, loose fillings, and failing crowns. A new crown changes the shape of the tooth, and the aligners are made from a scan of your teeth as they are. If a crown changes mid-treatment, the trays may stop fitting.
So the order matters. We fix what needs fixing, then scan and plan.
Dental implants and teeth joined by a bridge can’t be moved with Invisalign, but they don’t automatically disqualify you.
An implant is fused directly to the bone, with none of the ligament that lets a natural tooth shift. Aligners can move the teeth around a dental implant, but the implant itself stays where it is. That’s why I plan the final position of the other teeth around it.
A fixed bridge connects two or more teeth. Those teeth can’t move separately, so if the plan needs them to move, the bridge may need to come off and be replaced after treatment.
Crowned teeth move the same way natural teeth do, because the root underneath is natural. Attachments can usually be placed on crowns and veneers too.
A severe bite problem caused by the position of the jaws, rather than the teeth, may need braces or surgery instead of Invisalign alone.
Aligners move teeth, and in adults they don’t change the size or position of the jaws. When an overbite, underbite, or crossbite comes from the jaw itself, moving the teeth can only hide part of the difference.
A 2024 review of clear aligner treatment in Cureus listed skeletal discrepancies greater than 2 mm between the upper and lower jaws among the cases aligners aren’t suited to. The same review described deep bite as one of the most complicated cases to treat with aligners.
That said, many bite problems are dental rather than skeletal. A lot of the overbite and crowding cases I see are good candidates. I go into more detail on Invisalign for overbite and Invisalign for crowding.
For true jaw discrepancies, aligners can still be part of the plan, used before and after jaw surgery in place of braces.
Very large rotations and big vertical movements are the tooth movements most likely to push a case away from Invisalign alone.
Round teeth like canines and premolars give the plastic little to grip. In a 2009 study of 37 Invisalign patients, accuracy for upper canine rotation dropped significantly once the planned rotation passed 15 degrees. The 2024 Cureus review listed rotations over 20 degrees among its exclusions.
Pulling a tooth down into line with its neighbors was the least accurate movement in the 2009 study, at 29.6% of what was planned.
Closing large spaces after removing teeth requires moving roots a long way while keeping them upright, which is harder for aligners than for braces.
None of these is an automatic no. Attachments, slower staging, elastics, or a short phase of braces often fill the gap. But when a case depends heavily on these movements, I’ll tell you at the consultation.
If you can’t wear aligners 20 to 22 hours a day, Invisalign isn’t a good fit for you.
Aligners move teeth only while they’re in. I ask patients to wear their aligners 20 to 22 hours a day, and that includes most of the workday.
This disqualifier is the one people decide for themselves. A 2021 study of 2,644 adult aligner patients classified 25.7% as poorly compliant with wear time.
I ask about it directly. Long client lunches, frequent travel, and constant coffee can all cut wear time. If you know the trays will spend half the day in a case, braces may serve you better, since they work without anyone having to remember them.
Age, past braces, crowns, and mild to moderate bite problems usually don’t disqualify you from Invisalign.
If you’re unsure, the scan and exam give you an answer in one visit. You can also see how Invisalign works from scan to final aligner.
Mail-order aligners skip the exam and X-rays that catch most Invisalign disqualifiers.
Gum disease, bone loss, decay, short roots, and jaw discrepancies don’t show up in a smile photo or an at-home impression. That’s the main reason I don’t recommend mail-order aligners.
SmileDirectClub, the best-known company in that space, went out of business in December 2023, and newer mail-order brands have since moved in using the same model. The U.S. Food and Drug Administration states that clear aligners are prescription devices meant to be used under a dentist’s or orthodontist’s supervision.
If someone hasn’t looked at your X-rays, nobody knows whether you should be moving your teeth.
Myth: If you’ve had gum disease, you can never get Invisalign. Many patients with treated, stable gum disease can have orthodontic treatment, with careful monitoring.
Myth: Invisalign only works for small cosmetic changes. It handles many moderate crowding, spacing, and bite cases, especially with attachments and elastics.
Myth: Implants stop you from getting Invisalign. The implant won’t move, but the teeth around it usually can.
Myth: You’re too old for Invisalign. Healthy gums and bone matter far more than age.
Myth: An online quiz can tell you if you qualify. Quizzes can’t see your X-rays, which is where most disqualifiers show up.
Red flags
These are reasons to see a dentist for an exam first:
People with active gum disease, untreated cavities, or a severe jaw discrepancy that needs surgery are not good candidates for Invisalign alone. Very large rotations or big vertical movements can also be a problem. Many of these patients can still have Invisalign after treatment, or alongside braces, elastics, or surgery.
You usually can’t start Invisalign while gum disease is active, because moving teeth through inflamed gums can worsen bone loss. Once periodontal treatment is complete and your gums are stable, orthodontic treatment is often possible. Regular cleanings and monitoring continue throughout so the gums stay healthy while the teeth move.
Yes, you can usually get Invisalign if you have dental implants, but the implant itself won’t move. It’s fused to the bone, so your dentist plans the movement of the other teeth around it. If the implant is in the way of where other teeth need to go, a different plan may be needed.
Yes, crowns and veneers usually don’t stop you from getting Invisalign, because the natural roots underneath still move normally. Attachments can usually be placed on crowns and veneers too. Your dentist checks the condition of each crown and veneer at the exam, since any restoration that needs replacing should be done first.
There’s no upper age limit for Invisalign. Adults in their 50s, 60s, and beyond can have treatment if their gums and bone are healthy enough to support tooth movement. Age matters less than gum health, bone support, and whether you can wear aligners 20 to 22 hours a day.
If you’ve been told you’re not a candidate, or you’re worried you won’t qualify, the best next step is an exam with X-rays and a scan. That shows whether something needs treatment first, whether aligners can handle your bite alone, and what a realistic plan would look like.
Wall Street Dental Spa is at 30 Wall Street, Suite 720, New York, NY 10005, in Manhattan’s Financial District. We’re open Monday to Friday, 8:00 am to 6:00 pm, and you can reach us at 646-566-3307. Your Invisalign consultation includes
Dr. Adriana Leone, DMD, is the founder of Wall Street Dental Spa in Manhattan’s Financial District. A graduate of Tufts University School of Dental Medicine, she has practiced dentistry since 1999 and opened her boutique practice in 2005. Dr. Leone is recognized among America’s Top Dentists and is one of New York City’s most experienced Invisalign providers, with more than 500 cases completed. She built Wall Street Dental Spa around calm, judgment-free, wellness-focused care for busy NYC professionals.
