Braces fix an overbite by applying steady pressure that gradually repositions your teeth and reshapes the bone around them. The process works differently depending on whether your overbite comes from tooth positioning, jaw structure, or a combination of both, but the core mechanism is the same: controlled force triggers your body to break down bone in one area and rebuild it in another, allowing teeth to shift into better alignment. Most overbite corrections with braces take between 18 months and 2 years.
What Counts as an Overbite
Some degree of overbite is normal and even necessary for healthy chewing. Your upper front teeth are supposed to sit slightly in front of your lower front teeth. The issue starts when that vertical overlap exceeds about 2 to 4 millimeters, at which point it can cause jaw pain, wear down your tooth enamel, and lead to other oral health problems.
It’s also worth knowing the difference between an overbite and an overjet, since the two are often confused. An overbite is vertical: your upper teeth drop too far down over your lower teeth. An overjet is horizontal: your upper teeth stick out too far forward. You can have one or both at the same time, and braces can address either problem, but the mechanics involved are slightly different.
How Bone Remodeling Moves Your Teeth
Braces don’t just push teeth through rigid bone. They trigger a biological chain reaction that remodels the bone itself. When a bracket and wire apply gentle, consistent pressure to a tooth, two things happen simultaneously on opposite sides of that tooth’s root.
On the side where the tooth is being pushed (the pressure side), your body activates cells called osteoclasts. These cells break down bone tissue by releasing acids and enzymes, essentially dissolving a small amount of bone to create space for the tooth to move into. On the opposite side (the tension side), a different type of cell called osteoblasts kicks in. These cells build new bone to fill the gap left behind, locking the tooth into its new position. This cycle of breaking down and rebuilding happens continuously throughout treatment, which is why you need regular adjustments to keep the pressure going in the right direction.
This process is slow by design. The forces have to be light enough to stimulate healthy remodeling without damaging the tooth root or surrounding tissue. That’s a big part of why overbite correction takes as long as it does.
What Braces Actually Do, Step by Step
Fixing an overbite usually involves more than just straightening crooked teeth. Your orthodontist is working to change the vertical relationship between your upper and lower arches, which requires a specific sequence of movements.
In the early months, braces focus on aligning individual teeth and leveling out the arches so they form smooth curves. This phase sets the foundation. Once your teeth are reasonably aligned, the real overbite correction begins. Your orthodontist may use elastic bands (rubber bands that hook from your upper teeth to your lower teeth) to pull your lower jaw forward or guide your upper teeth back and up. The specific configuration depends on what’s causing your overbite.
For deep overbites, where the upper teeth cover too much of the lower teeth vertically, your orthodontist may also use small attachments called bite turbos. These are little blocks of material bonded to the back of your upper front teeth or on the biting surface of your back teeth. They prevent your teeth from fully closing together, which sounds uncomfortable but serves a specific purpose: by keeping the back teeth slightly apart, bite turbos create vertical space that allows your back teeth to erupt (grow in) a bit more. As the back teeth come together at a new height, the deep bite opens up. Elastic bands help guide this process along.
Dental Overbite vs. Skeletal Overbite
Not all overbites come from the same place, and the cause determines how braces are used or whether braces alone will be enough.
A dental overbite means the problem is with tooth positioning. Maybe your upper front teeth tilted too far forward during development, or your lower teeth shifted backward. Braces handle this well on their own by tipping, rotating, and repositioning teeth within the existing bone. Most mild to moderate overbites fall into this category.
A skeletal overbite means the jaw bones themselves are mismatched. In orthodontic terms, this is classified as a Class II malocclusion, where the upper jaw sits too far forward relative to the lower jaw (or the lower jaw is underdeveloped). Braces can compensate for mild skeletal discrepancies by moving teeth to mask the jaw imbalance, but there are limits to how much camouflage tooth movement can achieve.
When the skeletal discrepancy is severe, braces are often combined with other approaches. In children and teens whose jaws are still growing, orthodontic headgear or functional appliances can redirect jaw growth to reduce the mismatch. In adults, significant skeletal overbites may require jaw surgery (orthognathic surgery) in addition to braces. Surgery is generally considered when the horizontal gap between the upper and lower front teeth reaches 5 millimeters or more, or when the deep bite is causing the lower teeth to dig into the soft tissue of the palate. Braces are still part of the process in surgical cases, used before and after the procedure to fine-tune tooth alignment.
How Long Overbite Correction Takes
For straightforward cases, overbite correction can wrap up in about 12 months. More complex overbites, particularly deeper ones or those with a skeletal component, typically take 18 months to 2 years. Several factors influence where you’ll fall in that range: the severity of the overbite, your age (bone remodels faster in younger patients), how consistently you wear your rubber bands, and whether extractions or other interventions are needed to create space.
The rubber band phase is where patient compliance matters most. Elastics only work if you wear them as directed, usually 20 to 22 hours a day. Skipping them or wearing them inconsistently is one of the most common reasons overbite correction stalls or takes longer than expected.
Why Retention Matters Afterward
Once your braces come off, the bone around your teeth is still settling. New bone laid down by osteoblasts takes time to fully mineralize and harden. During this window, teeth have a strong tendency to drift back toward their original positions, a process called relapse. This is why retainers are a non-negotiable part of overbite treatment. Most orthodontists prescribe full-time retainer wear for the first several months after braces are removed, then transition to nighttime-only wear. For overbite corrections in particular, consistent retainer use is critical because the vertical changes achieved during treatment are among the most prone to relapse.