Most overbites are corrected with braces or clear aligners. A minority — the ones caused by the jaws themselves rather than by where the teeth sit — need more than that, and a small number of those need surgery. The useful question isn’t which appliance fixes an overbite. It’s whether your overbite is a tooth problem or a jaw problem, because that determines everything that follows.
Here’s how to tell the difference, and what treatment actually involves once you know.
What is an overbite, exactly?
An overbite is how much your upper front teeth vertically overlap your lower front teeth when you bite together. Some overlap is normal and desirable — roughly one to two millimeters, or the upper teeth covering about the top 10 to 30 percent of the lower ones. That’s a healthy bite, not a problem to be fixed.
A deep bite is when that overlap is excessive. In pronounced cases the lower front teeth disappear entirely behind the uppers, and sometimes they contact the tissue on the roof of the mouth instead of the back of the upper teeth.
A distinction worth knowing: people often say “overbite” when they mean overjet — how far the upper teeth stick out horizontally in front of the lower ones. Those are different measurements, they have different causes, and they’re treated differently. Many patients have some of both. If you’ve been told you have an overbite and it doesn’t match what you see in the mirror, this is usually why.
What causes an overbite?
Two categories, and the category matters more than the severity.
Dental — the jaws are in a reasonable relationship, but the teeth have erupted or drifted into a position that produces deep overlap. Crowding, missing or extracted back teeth that let the bite collapse, and long-term habits can all contribute. These respond well to moving teeth.
Skeletal — the upper and lower jaws are in different relative positions than they should be, most often a lower jaw that is set back relative to the upper. Moving teeth can camouflage this to a point. Beyond that point, teeth are being asked to compensate for a mismatch that isn’t theirs.
Genetics drives most of both categories. Childhood thumb sucking and prolonged pacifier use are real contributors in some cases, but they’re a smaller share than the internet suggests, and they are not worth guilt years later.
Does every overbite need to be fixed?
No, and I’ll tell you when yours doesn’t.
A deep bite that is stable, isn’t wearing your teeth, isn’t causing discomfort, and doesn’t bother you is a reasonable thing to leave alone and monitor. Plenty of people have one and will never need anything done about it.
The reasons to treat one are functional, and they show up over time rather than all at once:
- Wear. When the lower incisors strike the backs of the uppers at a steep angle, decades of chewing grind enamel away. Enamel does not grow back. This is the most common real justification I see in adults.
- Tissue damage. A very deep bite can drive the lower teeth into the gum tissue behind the upper front teeth.
- Uneven loading of the jaw joints and muscles, which for some people means ongoing jaw discomfort.
- Cleaning. Deep bites are usually accompanied by crowding, and crowded teeth are harder to keep clean.
Appearance is a legitimate reason too. I’m not going to pretend otherwise — it’s just not the reason I lead with.
How braces correct an overbite
Braces don’t just straighten the front teeth. Correcting a deep bite means changing the vertical relationship between the arches, which uses a few tools together:
Archwire sequence. Treatment starts with light, flexible wires and progresses to stiffer ones. The later wires are what actually express the vertical correction — the early ones are getting the teeth aligned enough for the working wires to fit.
Bite ramps or turbos. Small raised platforms bonded behind the upper front teeth or on the back molars. They stop you from biting fully closed, which prevents you from knocking brackets off the lower teeth and lets the back teeth settle into a better vertical position. They feel strange for a few days. Everyone adapts.
Elastics. The small rubber bands you hook between the upper and lower arches. These do most of the front-to-back correction when the lower jaw sits back relative to the upper. They only work while they’re in your mouth — this is the single largest patient-controlled variable in the whole treatment.
We use Damon Ultima self-ligating brackets on every braces case here, and every case is planned in 3D from a CBCT scan before a single bracket is placed. That matters more for bite correction than for simple crowding, because we’re planning movement in three dimensions rather than just lining up the front teeth.
Do clear aligners work for an overbite?
For mild to moderate cases, yes — and better than they used to.
Aligners correct deep bites using attachments (small tooth-colored bumps bonded to specific teeth that give the plastic something to push against), precision bite ramps built into the trays themselves, and elastics hooked to the aligners when front-to-back correction is needed.
Where they’re weaker is significant vertical correction in an adult with a strongly skeletal pattern. That’s not a marketing distinction between brands — it’s a limitation of what a plastic shell can do against that kind of movement.
The variable that decides aligner cases is wear time, not case complexity. Twenty-two hours a day, every day. Patients who hit that get the result the software predicted. Patients who don’t, don’t — and a deep bite is one of the least forgiving things to be casual about. If you already know you won’t wear them, braces will serve you better, and there’s no judgment in saying so at the consultation.
More on how we plan aligner cases on the Invisalign page.
When is surgery actually on the table?
Less often than people fear.
Surgery becomes a genuine consideration when the skeletal discrepancy is large enough that moving teeth alone would leave them in an unstable or unhealthy position — tipped past what the bone around them can support. In those cases, orthodontics positions the teeth and an oral surgeon repositions the jaw, and the two are coordinated over the course of treatment.
Two things worth saying plainly. First, this is a minority of adult cases, not the default. Second, skeletal anchorage — temporary mini-implants that give us a fixed point to push against — has expanded what can be corrected without surgery compared to what was possible fifteen years ago. If you were told years ago that your case required surgery, that assessment is worth revisiting.
How long does it take?
It depends on whether we’re moving teeth or changing a jaw relationship, and on how consistently elastics or aligners get worn. Simple dental deep bites are on the shorter end of a typical orthodontic course; skeletal correction in an adult takes longer.
I’d rather give you a real number for your case than an average that describes nobody. That’s what the consultation is for, and you’ll leave with a timeline, not a range.
Retention is not optional here
Deep bites relapse. Of all the things orthodontics corrects, vertical overlap is among the most eager to drift back, because the muscle and tongue patterns that helped produce it are still there when the braces come off.
Retainers are how the correction holds. Not for a year — indefinitely, tapering to nights. This is the part patients most often skip and most often regret, and it’s the cheapest part of the entire process.
Frequently asked questions
Can an overbite be fixed without surgery? Most can. Dental deep bites are routinely corrected with braces or aligners. Skeletal cases can often be camouflaged or corrected with skeletal anchorage. Surgery is reserved for discrepancies too large to address by moving teeth safely.
Can adults fix an overbite? Yes. Teeth move at any age — the biology doesn’t switch off. What changes in adults is that the jaws are no longer growing, so we can’t use growth to help, and there’s more likely to be existing wear or gum recession to work around. Adult bite correction is a routine part of what we do.
Will I need teeth extracted? Sometimes, though less often than in past decades. Expansion, skeletal anchorage, and better mechanics have reduced how often extraction is the right answer. When it is the right answer, you’ll get the reasoning, not just the recommendation.
Does insurance cover it? Many plans include an orthodontic benefit, usually as a lifetime maximum rather than an annual one, and coverage doesn’t generally distinguish between “cosmetic” and “functional” — it’s tied to the plan’s terms and often to the patient’s age. Washington Apple Health covers orthodontic treatment for patients under 21 who meet medical-necessity criteria; we cover how that works here. We verify your specific benefits before you commit to anything.
The next step
If you want to know which kind of overbite you have, that takes an exam and a scan, not a mirror. Our consultation is free and includes 3D imaging and an airway screening — you’ll get a straight answer about whether treatment is warranted, including if the answer is that it isn’t.
Call or text (509) 792-1008. We see patients from Pasco, Kennewick, and Richland. Se habla español.