How to Fix Buck Teeth: Overjet Causes, Risks, and Treatment Options

Buck teeth — clinically known as overjet and often associated with Class II malocclusion — occur when the upper front teeth protrude significantly beyond the lower teeth. While commonly referred to as “bunny teeth” or “goofy teeth,” this is more than a cosmetic concern. It is a dental misalignment that can affect speech, chewing efficiency, and long-term oral health if left unaddressed.

Quick Facts: Buck Teeth at a Glance

• Average Treatment Time: 12–24 months for orthodontic treatment | 4–6 weeks recovery if jaw surgery is required
• First Orthodontic Check-up: Age 7 is recommended by the American Association of Orthodontists
• Most Common Causes: Genetics, childhood habits such as thumb-sucking and tongue-thrusting, and jaw growth discrepancies
• Primary Treatment Windows: Interceptive (ages 6–10), Comprehensive (ages 10+), and Combined Ortho-Surgery for adults with skeletal issues

What Causes Buck Teeth?

Most overjet cases have a hereditary component, but external factors during early development can significantly worsen the alignment. Understanding the cause is an important first step, as it helps determine the most appropriate and effective treatment approach.

Thumb Sucking and Pacifier Use

Sucking on a thumb or pacifier is completely normal for babies and young toddlers. However, if these habits continue into the years when permanent teeth are developing, the sustained pressure can force the upper teeth to flare outward and gradually reshape the jaw, leading to an abnormal alignment. The earlier the habit is discontinued, the better the chances of the teeth self-correcting.

Tongue-Thrusting

Tongue thrust occurs when the tongue pushes too far forward in the mouth, particularly during swallowing. While common in infants, a persistent tongue-thrust habit in older children and adults can contribute to an open bite or make an existing overjet worse over time. In some cases, speech therapy is recommended alongside orthodontic treatment to address the underlying habit.

Genetics and Jaw Structure

The size and shape of your jaw are largely inherited. If the upper jaw is oversized or the lower jaw is smaller than average — a condition known as retrognathism — the resulting skeletal mismatch causes the upper teeth to protrude. In these cases, treatment may need to address the jaw structure itself, not just the position of the teeth.

Crowding, Spacing, and Missing Teeth

Missing teeth can cause the remaining teeth to shift and migrate over time, contributing to protrusion. On the other end, severe crowding can push the front teeth outward simply because there is not enough room in the dental arch for them to sit in a normal position. Both situations are manageable with the right orthodontic plan.

Health Risks of Untreated Buck Teeth

Leaving a significant overjet untreated can lead to a range of physical and psychological complications that go well beyond appearance.

Increased Risk of Dental Trauma

Protruding teeth extend beyond the natural protection of the lips, making them significantly more vulnerable during falls, accidents, or contact sports. Clinical evidence confirms a strong association between increased overjet and trauma to the upper front teeth. Children with significant protrusion face a considerably higher risk of dental injuries across all stages of development — a key reason why early assessment is recommended.

Speech and Chewing Difficulties

An overjet can make it difficult to pronounce certain consonants — particularly ‘S’, ‘F’, and ‘V’ — often resulting in a lisp or altered speech pattern. Chewing efficiency can also be reduced when the upper and lower teeth do not meet correctly, which may place additional strain on the digestive system over time. Both of these issues typically improve significantly with successful treatment.

Psychological Impact

Children with prominent buck teeth are unfortunately frequent targets for teasing and bullying, which can have a lasting impact on self-esteem and social confidence during formative years. This is one of the reasons early intervention is considered seriously even when the functional impact is still mild — the psychological benefit of treatment can be just as meaningful as the clinical outcome.

How to Fix Buck Teeth: Treatment Options by Age

Treatment is tailored to each patient based on the underlying cause, the severity of the overjet, and how far along jaw development is. There is no single approach that suits everyone, but there is an effective pathway for every age group.

Interceptive Orthodontics (Ages 7–11)

Early treatment does not always produce dramatically different clinical outcomes compared to treating the same issue later. However, early intervention is strongly recommended in specific situations where waiting carries real risks — particularly a high chance of dental trauma or significant psychological distress from bullying.

Early overjet reduction is typically considered for children with a severe protrusion (an overjet greater than 10mm), a gummy smile or short upper lip that leaves the teeth permanently exposed, or documented psychological distress related to their dental appearance. In these cases, the benefit of acting early clearly outweighs waiting for comprehensive treatment.

Comprehensive Treatment for Teens and Adults

For patients whose jaw growth is complete or nearly complete, the focus shifts to precise dental movement or, in more severe skeletal cases, surgical correction. The table below summarises the main options and what each is best suited for.

Factors That Affect the Cost of Treatment

The cost of correcting buck teeth varies considerably depending on the complexity of the case and the treatment approach. Cases that require only orthodontic movement of the teeth are generally less expensive than those involving skeletal correction or surgery.

The type of appliance also plays a role. Aesthetic options like clear aligners or lingual braces carry higher laboratory fees than traditional metal braces. Longer treatments naturally require more clinical appointments and adjustments, which adds to the overall cost. If orthognathic surgery is part of the plan, hospital and surgical fees will be included in the total.

A full cost estimate can only be given after a clinical assessment, since the right treatment plan — and therefore the cost — depends on the specifics of each case.

Can You Fix Buck Teeth at Home?

There are no proven home remedies that can safely correct buck teeth. Attempting to move teeth using DIY aligners, rubber bands, or manual pressure can cause serious and irreversible damage — including root resorption, bone loss, and in some cases permanent tooth loss.

Correcting dental alignment requires carefully controlled, monitored pressure applied according to a clinical plan. Any treatment that moves teeth must be overseen by a qualified orthodontist or dentist who can track the response of the bone and surrounding structures throughout the process.

Frequently Asked Questions (FAQ)