Overbite Correction: Causes, Treatment, and What to Expect

An overbite is the most common malocclusion in the United States, affecting an estimated 70% of the population to some degree according to the American Association of Orthodontists. A small overbite (2-4mm of vertical overlap between the upper and lower front teeth) is normal and doesn't require treatment. An excessive overbite (greater than 4mm, or where the lower front teeth bite into the palate) creates functional problems, accelerated wear, jaw pain, and aesthetic concerns that do require overbite correction. The treatment that works depends on a distinction most patients aren't aware of: whether the overbite is dental (the teeth are angled incorrectly but the jaws are proportional) or skeletal (the jaw bones themselves are disproportionate). That distinction changes everything about the treatment plan.

Dr. Esther Jeong at Willow Family Dentistry in Wylie, TX evaluates overbites using iCAT 3D imaging and cephalometric analysis that measures the skeletal and dental components separately. This precision determines whether your overbite can be corrected with aligners alone, requires braces with elastics, or needs a combined orthodontic-surgical approach. Here's how each scenario works.

What's the Difference Between Dental and Skeletal Overbite?

This is the classification that determines your treatment pathway, and it's the question your provider should answer before recommending any treatment.

A dental overbite means the upper front teeth are angled too far forward (proclined) or the lower front teeth are angled too far backward (retroclined), creating excessive vertical overlap. The jaw bones are proportional; the teeth are simply tipped in the wrong direction. Dental overbites respond well to orthodontic treatment alone (Invisalign or braces) because the correction involves moving teeth within bone that's already in the right position. According to the ADA, the majority of overbites in the general population are dental rather than skeletal.

A skeletal overbite means the upper jaw (maxilla) is positioned too far forward relative to the lower jaw (mandible), or the lower jaw is positioned too far backward, or both. The teeth may be perfectly aligned on their respective jaws, but the jaws themselves don't match. Skeletal overbites require either growth modification in children (functional appliances that guide jaw growth) or combined orthodontic-surgical correction in adults (orthognathic surgery repositions the jaw, then orthodontics fine-tunes the bite). According to the Mayo Clinic, attempting to correct a skeletal overbite with tooth movement alone produces compromised results because the underlying jaw discrepancy remains.

Many overbites have both dental and skeletal components. Dr. Jeong's cephalometric analysis measures the contribution of each, which determines the treatment complexity. A predominantly dental overbite with a minor skeletal component can often be corrected with orthodontics alone through dental compensation. A predominantly skeletal overbite requires addressing the jaw position.

What Causes an Overbite?

Overbites develop from genetic, developmental, and behavioral factors, usually in combination.

Genetics is the primary driver. Jaw size and proportion, tooth size, and the relationship between the upper and lower jaw are inherited traits. If one or both parents have an overbite, the child is significantly more likely to develop one regardless of habits or environment. According to orthodontic research, skeletal overbites have the strongest genetic component, while dental overbites are more influenced by environmental and behavioral factors.

Childhood habits contribute to dental overbite development. Prolonged thumb sucking, pacifier use past age 3, and tongue thrusting (pushing the tongue against the front teeth when swallowing) create outward pressure on the upper front teeth that tips them forward over years. The AAO recommends addressing thumb-sucking habits before age 4 to minimize orthodontic consequences.

Tooth loss and shifting. Missing lower back teeth (from extraction, decay, or congenital absence) without replacement allow the remaining teeth to drift, changing the bite relationship and potentially deepening the overbite. This is more common in adults who lost molars years ago and never had them replaced.

TMJ dysfunction and jaw growth asymmetry. Conditions affecting the temporomandibular joint during growth can alter jaw development and contribute to skeletal overbite. Childhood condylar fractures, juvenile arthritis affecting the TMJ, and idiopathic condylar resorption can all produce or worsen an overbite through restricted lower jaw growth.

What Are the Overbite Correction Options?

Treatment ranges from clear aligners for mild-moderate dental overbites to combined surgery for severe skeletal cases. Dr. Jeong matches the treatment to the severity and type.

Invisalign (Mild to Moderate Dental Overbite)

Invisalign can correct dental overbites of up to 4-6mm through a combination of upper incisor retraction (tipping the upper front teeth backward), lower incisor proclination (tipping the lower front teeth forward), and bite ramps (built-in acrylic platforms on the upper aligners that guide the lower jaw forward during treatment). According to the ADA, modern Invisalign protocols with precision attachments and elastics achieve overbite correction results comparable to traditional braces for appropriate cases.

Invisalign at Willow includes ClinCheck planning that simulates the overbite correction digitally before treatment begins, showing you the projected outcome tooth by tooth. Treatment typically takes 12-18 months for overbite correction, depending on the degree of movement required. Elastics (small rubber bands connecting upper and lower aligners) are used in most overbite cases to provide the force vectors needed for anteroposterior correction.

Traditional Braces (Moderate to Severe Dental Overbite)

Braces remain the most versatile tool for complex overbite correction because they provide precise three-dimensional control over every tooth simultaneously. For overbites requiring significant upper incisor retraction, premolar extraction may be necessary to create space for the front teeth to move backward. Class II elastics (rubber bands connecting upper canines to lower molars) pull the upper arch backward and the lower arch forward simultaneously.

Treatment time for braces correcting a moderate-to-severe dental overbite is typically 18-24 months. The results are predictable and well-documented across decades of orthodontic research. Braces are Dr. Jeong's recommendation for overbites involving extractions, complex tooth movements, or patients who need maximum treatment control.

Growth Modification (Children Ages 7-12)

For skeletal overbites caught during the growth phase, functional appliances (Herbst appliance, Twin Block, MARA) redirect jaw growth rather than moving teeth alone. These appliances hold the lower jaw in a forward position, stimulating the mandible to grow forward while restraining forward maxillary growth. The result: the skeletal discrepancy is corrected by the body's own growth rather than by surgery. According to the AAO, growth modification is most effective between ages 8-12 when the mandible is still actively growing. After growth completion (typically age 14-16 in girls, 16-18 in boys), functional appliances no longer stimulate jaw growth.

This is why the AAO recommends an orthodontic evaluation by age 7: early identification of skeletal overbite opens the growth modification window that closes permanently once the child stops growing.

Orthognathic Surgery + Orthodontics (Severe Skeletal Overbite in Adults)

Adult patients with severe skeletal overbite (typically greater than 8-10mm, receded chin, convex profile) whose growth is complete may require surgical correction. The protocol: 12-18 months of pre-surgical orthodontics aligns the teeth on their respective jaws, then orthognathic surgery repositions the mandible forward (or the maxilla backward, or both), then 6-12 months of post-surgical orthodontics fine-tunes the final bite. The combined treatment produces both functional correction (proper bite, reduced TMJ strain) and facial profile improvement (stronger chin, balanced proportions).

Orthognathic surgery is performed by an oral and maxillofacial surgeon in a hospital setting under general anesthesia. Recovery takes 4-6 weeks for normal activity and 3-6 months for complete healing. According to clinical outcomes data, combined orthodontic-surgical correction of severe skeletal overbite produces the most stable long-term results because the skeletal cause is eliminated rather than compensated.

What Happens If You Don't Correct an Overbite?

A mild overbite within the normal range (2-4mm) requires no treatment and causes no problems. An excessive overbite that goes untreated produces progressive consequences.

Accelerated wear on the lower front teeth. In a deep overbite, the lower incisors contact the palatal (tongue-side) surfaces of the upper front teeth or the palate itself with every bite. This abnormal contact wears the enamel on both surfaces faster than normal, producing shorter, thinner front teeth over decades. According to the ADA, overbite-related wear is one of the most common causes of anterior tooth fracture in adults over 40.

TMJ dysfunction. An excessive overbite forces the lower jaw into a retruded (pushed-back) position that loads the temporomandibular joint abnormally. Over time, this produces clicking, pain, headaches, and limited opening. Patients with deep overbites have significantly higher TMJ dysfunction rates than those with normal bites.

Soft tissue trauma. In severe overbites, the lower front teeth bite into the palatal gum tissue behind the upper front teeth, causing chronic irritation, ulceration, and tissue recession on the palate. This is painful, recurrent, and only resolves with overbite correction.

Speech and functional concerns. Severe overbites can affect S and Z sounds (lisping), create difficulty biting into foods with the front teeth (the lower teeth can't reach the food), and contribute to mouth breathing if the lip seal is compromised by the protruding upper teeth.

What Should You Expect During Overbite Correction?

The consultation determines the treatment pathway. Dr. Jeong takes the iCAT scan, measures the overbite (in millimeters of vertical overlap and horizontal overjet), performs cephalometric analysis to classify the skeletal and dental components, and presents the treatment options specific to your anatomy. You see the ClinCheck simulation if Invisalign is the approach, showing the projected correction step by step.

During treatment, overbite correction follows a phased approach. The initial phase aligns and levels the arches (straightening crowded or rotated teeth). The middle phase addresses the overbite specifically through incisor retraction, bite opening mechanics, or elastic wear. The finishing phase fine-tunes the bite for optimal contact and aesthetics. According to orthodontic treatment planning data, the overbite correction phase is typically the longest because anteroposterior tooth movement is slower than alignment correction.

After treatment, retainer wear is essential. Deep overbites have a higher relapse tendency than other malocclusions because the muscle memory and ligament forces that created the original overbite persist after treatment. Nightly retainer wear prevents the lower jaw from settling back into its retruded position and the teeth from returning to their deep overlap.

Overbite correction ranges from straightforward Invisalign treatment for mild dental cases to combined surgical-orthodontic protocols for severe skeletal discrepancies. The treatment that works for you depends entirely on the type and severity, which is why the diagnostic step (iCAT + cephalometric analysis) precedes any treatment recommendation. If your overbite is affecting your bite, your wear patterns, your jaw comfort, or your confidence, schedule a consultation at Willow Family Dentistry. Dr. Jeong will measure exactly what you're dealing with and show you what correction looks like for your specific teeth and jaws.