Underbites get asked about a lot in our South San Francisco office, and “can Invisalign actually fix this?” is almost always the first question. The short answer: yes, Invisalign can correct many underbites, but whether it’s the right tool for yours depends on how much your jaw is involved. Read on for the honest, specific answers our dental team hears most often.
What exactly is an underbite, and how does it differ from other bite problems?
An underbite means your lower front teeth sit in front of your upper front teeth when you bite down. Dentists call it a Class III malocclusion. It’s different from an overbite (upper teeth too far forward), a crossbite (upper and lower teeth overlapping on the wrong side), or an open bite (front teeth don’t touch at all).
Underbites come in two flavors:
- Dental underbite: The teeth themselves are tipped or positioned in a way that creates the appearance. The underlying jaw bones sit in a fairly normal relationship.
- Skeletal underbite: The lower jaw (mandible) itself is positioned further forward than the upper jaw, or the upper jaw is underdeveloped. The problem is in the bone, not just the teeth.
That distinction matters a lot when it comes to what Invisalign can and can’t do. Dental underbites respond well to clear aligner therapy. Skeletal underbites may need additional help, depending on severity.
Can Invisalign fix an underbite, or is this a job for braces or surgery?
Invisalign can correct mild to moderate underbites, especially dental ones where the issue is tooth position and tipping. The aligners apply precise, controlled pressure to move teeth into better alignment over time. For cases that also involve some jaw positioning, Invisalign can be combined with elastics (rubber bands attached to small hooks or buttons on the teeth) to guide the jaw relationship as well.
Severe skeletal underbites, where the jaw bones themselves are significantly misaligned, typically require orthognathic (jaw) surgery to get a stable, healthy result. Orthodontic treatment with either Invisalign or traditional braces is usually done before and after the surgery to position the teeth correctly around the new jaw position.
The takeaway: a mild to moderate underbite caused mainly by tooth position is a realistic candidate for Invisalign alone. A jaw-driven underbite may need a combined approach. The only way to know which category you’re in is a proper clinical exam and X-rays with your dentist or an orthodontist.
How does Invisalign move teeth to correct an underbite?
Your Invisalign treatment starts with a 3D digital scan of your teeth, which is used to map out a precise tooth-movement plan. A series of custom clear plastic aligners is then made, each one slightly different from the last, nudging teeth gradually in the planned direction. You swap to the next tray roughly every one to two weeks.
For an underbite specifically, the aligners typically:
- Retract (move back) the lower front teeth
- Move the upper front teeth slightly forward
- Use attachments, small tooth-colored dots bonded to specific teeth, to help with more complex rotations and root movements
- In combination cases, use Class III elastics that pull the lower jaw back and the upper jaw forward throughout the day
The American Dental Association notes that malocclusion treatment outcomes depend on both the severity of the problem and the consistency of treatment, which is why wearing your aligners 20 to 22 hours a day is non-negotiable for good results.
What severity of underbite can Invisalign handle? Where’s the limit?
In general terms, the clinical community describes underbite severity by how far the lower teeth protrude past the upper teeth in millimeters, and by how much of the jaw is involved.
- Mild underbite (1 to 3 mm of lower protrusion, mainly dental): Strong candidate for Invisalign alone. These are the cases that tend to close the most predictably with clear aligners.
- Moderate underbite (3 to 5 mm, some skeletal contribution): Often treatable with Invisalign plus elastics, sometimes with temporary anchorage devices (TADs). Results depend on age, growth status, and the patient’s specific anatomy.
- Severe underbite (greater than 5 mm, significant skeletal component): Usually requires surgical correction to get a result that’s stable, functional, and looks natural. Invisalign or braces alone can’t safely override significant bone misalignment.
Age is also a real variable. Teenagers whose jaws are still growing can sometimes be guided with growth-modification appliances before clear aligner treatment, which can reduce the severity and sometimes avoid surgery. Adults with fully developed jaws don’t have that option, so the distinction between dental and skeletal becomes even more important.
How long does Invisalign take to fix an underbite compared to braces?
For mild to moderate underbites, Invisalign treatment typically runs 12 to 24 months, similar to traditional braces for the same case type. Complex cases with elastics can run longer. The actual timeline depends on:
- The severity and root cause of your specific underbite
- How many teeth need to move and by how much
- Whether elastics or attachments are needed
- Your compliance (wearing the aligners the required hours per day makes a real difference in timeline)
- Whether refinement trays are needed at the end to fine-tune the result
Traditional metal braces can sometimes offer slightly more predictable control for certain tooth movements in complex underbite cases, since the brackets are fixed and can’t be removed. Your treating provider will give you their honest read on which is the better fit after examining your bite in full.
How much does Invisalign cost for an underbite?
Nationally, Invisalign for a complex bite correction like an underbite typically runs between $4,000 and $8,000, with the mid-range being around $5,000 to $6,500 for a full comprehensive case. These are national average ranges, not our office’s prices, and your actual cost will depend on your specific treatment plan.
A few things that affect the total:
- Case complexity: A mild dental underbite needing fewer trays costs less than a moderate case requiring elastics, attachments, and multiple rounds of refinements.
- Provider type: An orthodontist’s fees tend to be higher than a general dentist’s; some patients appreciate the specialist focus, others are well served by their family dentist.
- Dental insurance: Many orthodontic plans cover a lifetime orthodontic benefit (often $1,000 to $2,000) that applies to Invisalign just as it would to braces, provided you haven’t used it before. Check your plan before assuming Invisalign isn’t covered.
- Flexible spending accounts (FSA/HSA): These can be used for Invisalign and effectively lower your out-of-pocket cost with pre-tax dollars.
If surgery is also needed, the surgical component is typically billed through medical insurance separately from the orthodontic phase. Navigating that coordination is worth discussing with your dental team early.
What happens after Invisalign treatment? Will my underbite come back?
Retention is the part of orthodontic treatment that patients sometimes underestimate, and with underbites it’s especially important. Once your teeth are in their new position, they have a natural tendency to drift back, particularly early on. Retainers hold the result.
Most patients finish Invisalign with a set of retainers, usually clear, removable ones similar in look and feel to the aligners themselves. The typical protocol is full-time wear for several months after treatment, then nightly wear long-term. Some patients are given fixed (bonded) retainers behind the front teeth as a backup.
If your underbite had a skeletal component that wasn’t surgically corrected, your provider may discuss the risk of some relapse over time, especially if jaw growth continues into the late teens or early twenties. This is worth an honest conversation before you start, so expectations are realistic.
The good news: patients who wear their retainers as directed tend to keep their results for decades. The ones who don’t wear them as directed are usually the ones calling us about teeth shifting back. It sounds simple because it is.
Thinking about whether Invisalign could work for your underbite? The team at Vaksman Dental Group offers Invisalign in South San Francisco and can walk you through exactly what your bite needs, whether that’s clear aligners, a combined approach, or a referral to a specialist. We also offer orthodontic treatment in South San Francisco for patients who are weighing all their options. If you’re also curious about what a broader smile change could look like, our cosmetic dentistry services in South San Francisco can be part of the conversation too.
For more on how bite problems affect your oral health long-term, the ADA’s MouthHealthy guide to orthodontics is a trustworthy starting point.
Written by the Vaksman Dental Group team and medically reviewed by Dr. Irena Vaksman, DDS — South San Francisco. Last reviewed September 2026.