Underbite

What this means for your treatment decision

More significant skeletal underbites usually need a broader plan, sometimes involving growth guidance in children or coordinated care in adults.

Dental versus skeletal underbite

A dental underbite occurs when the front teeth are tipped in a way that creates a reversed bite, even though the jaw bones themselves are reasonably proportioned. Moving the teeth can correct the relationship in these cases. A skeletal underbite involves an actual mismatch in jaw size or position — most often a lower jaw that has grown more than the upper jaw. In skeletal cases, tooth movement can sometimes mask part of the discrepancy, but it cannot change the bone structure underneath, and treating it as though it could would set expectations that the mechanics can't deliver.

Why underbites are evaluated beyond a scan

• Facial profile and jaw proportion assessment, not just tooth position
• Bite function testing, since underbites can cause uneven chewing contact
• Age and growth status in children and teens, which changes what options are realistic
• Review of any family history of jaw-pattern underbites, which tend to run in families
• Imaging beyond a digital scan when the jaw relationship needs closer assessment

Why underbites matter beyond appearance

An underbite is not only a cosmetic concern. Because the front teeth meet in reverse, chewing forces can be distributed unevenly, leading to accelerated wear on specific teeth over time. Some patients also experience jaw joint strain or muscle fatigue from compensating for the bite relationship. These functional effects are part of why underbite correction is approached as a bite issue first, with appearance as a related but secondary outcome.

What aligners and braces can realistically do

For a dental underbite, orthodontic treatment moves the upper and lower front teeth to re-establish a normal front-to-back relationship, often using attachments and sometimes elastics to help coordinate the two arches. This can be effective and is frequently achievable without anything beyond aligners or braces. The key distinguishing factor, determined at your exam, is whether your underbite is primarily a tooth-position problem or a jaw-size problem.

When growth guidance or surgical coordination is discussed

• Children and teens with a skeletal pattern may be candidates for growth-modifying appliances while jaw growth is still active
• Adults with a significant skeletal underbite may need treatment coordinated with jaw (orthognathic) considerations for a stable, functional result
• These paths are discussed only when the clinical evaluation points toward them — not assumed for every underbite
• A referral or second clinical opinion may be part of an honest plan for more complex skeletal cases

What treatment feels like

Correcting an underbite with aligners or braces can involve more deliberate, directional pressure than straightforward cosmetic alignment, especially if elastics are used to help coordinate the bite. Expect the usual adjustment period after each new stage, along with gradual changes in how your bite feels when chewing as the correction progresses. Any sudden change in jaw comfort, clicking, or pain should be reported promptly rather than assumed to be routine.

Retention considerations for underbite cases

Underbite corrections, like overbite corrections, need a retention plan tailored to the type of movement involved. Because reversed bite relationships can be among the more relapse-prone patterns, consistent retainer wear and periodic follow-up checks are part of protecting the result, not an optional add-on once active treatment ends.

Questions patients ask