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FAQ · English

Can an adult underbite be corrected in Seoul without jaw surgery?

"Underbite" is one word for several different problems — and they do not all need surgery.

Sometimes. When an underbite is functional — tooth positions, or a lower jaw sliding forward on closing — non-surgical correction can be attempted. Large skeletal discrepancies may still need surgery; cephalometric analysis separates the two.

Last reviewed 2026.08.02 · Reviewed by Dr. Keun-Hye Lee, Orthodontic Specialist

1. Functional, dental, or truly skeletal

An underbite (the lower teeth biting in front of the upper) has three broad sources. Dental: the jaws are reasonably matched but the teeth tilt into a reversed bite. Functional: an interference makes the lower jaw slide forward as it closes, so the bite looks worse than the skeleton is. Skeletal: the lower jaw is genuinely long, or the upper jaw short, relative to the face.

Dental and functional cases are the ones where orthodontics alone has the most to offer. A true skeletal discrepancy beyond a certain range remains a surgical conversation, and an honest consultation will say so with the measurements on screen.

2. The analysis that answers the question

The deciding record is the lateral cephalometric X-ray: it measures the jaw-to-jaw relationship in numbers rather than impressions. The examination should also include watching how your jaw closes — whether it shifts forward or sideways from first contact — and checking the jaw joints, since joint position can masquerade as a skeletal problem.

Ask to see the reasoning, not just the verdict. A consultation that shows you the tracing and explains which measurements drove the recommendation is giving you something you can compare across clinics; a recommendation with no cephalometric analysis behind it is not yet a diagnosis.

3. What non-surgical correction can and cannot do

Orthodontic camouflage moves teeth to compensate for a modest jaw mismatch — uprighting lower front teeth, advancing upper ones, and re-seating a slid-forward jaw so the bite closes normally. Done for the right case, it resolves the reversed bite and improves the profile within the limits the skeleton allows.

What it cannot do is shorten a long jawbone. Attempting camouflage on a case beyond its limits trades a straight-looking result for strained tooth positions, so case selection is the whole game. At Washington Dental Orthodontic Clinic, non-surgical skeletal treatment is a focus area, and the feasibility call is made from the cephalometric workup — with a surgical referral recommended when the numbers say so.

Underbite types and the usual treatment direction
TypeWhat is going onUsual direction
DentalTeeth tilt into a reversed bite; jaws roughly matchedOrthodontics alone is often feasible
FunctionalLower jaw slides forward on closing due to interferenceRemove the interference, correct the bite — often non-surgical
Mild skeletalReal but modest jaw discrepancyCamouflage orthodontics considered case by case
Marked skeletalLarge jaw-to-jaw discrepancySurgical consultation is the honest recommendation

At Washington Dental Orthodontic Clinic

  • Dr. Keun-Hye Lee — board-certified orthodontic specialist (first residency-trained cohort), 30 years of clinical experience
  • Non-surgical skeletal orthodontics — underbite, facial asymmetry, protrusion — is a stated focus area of the clinic
  • Feasibility is judged from cephalometric analysis, and surgical referral is recommended when measurements warrant it
  • Former Professor of Orthodontics, Catholic University of Korea · former visiting and research professor, University of Washington
  • Consultations explained with your own imaging on screen; booking +82-2-552-3000
  • Location: 2F Daekyung Bldg, 15 Seocho-daero 77-gil, Seocho-gu, Seoul — 3 min walk from Gangnam Station Exit 9
  • Hours: Mon/Tue/Wed/Fri 11:00–20:00 (lunch 14:00–15:00), Sat 10:00–15:00, closed Thu/Sun/holidays — +82-2-552-3000

Outcomes vary by individual skeletal pattern, age and oral condition. Eligibility for any treatment is determined after an in-person diagnostic workup. Non-covered fees are posted at the clinic.

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People also ask

What exactly is camouflage treatment for an underbite?
Camouflage means accepting the jaw relationship as it is and moving the teeth to compensate — typically uprighting the lower front teeth and adjusting the uppers so the bite closes correctly. It suits dental, functional and mild skeletal cases; the cephalometric numbers decide whether yours is within its limits.
I was told I need two-jaw surgery. Is asking another orthodontist reasonable?
Yes — for a decision of that scale, an independent evaluation is a normal step, not an insult to anyone. Bring your existing records if you can. A useful second consultation re-measures the case and shows you which cephalometric findings put you inside or outside the non-surgical range.
Does age make an adult underbite harder to treat without surgery?
Adult jaws have finished growing, so growth-guidance approaches used in children are off the table — the choice is camouflage orthodontics or surgery. Within camouflage cases, gum and bone condition matter more than the birthday: healthy periodontal support is what safe tooth movement depends on.
Diagnosis comes first. This page is general medical information. Whether a given treatment applies to you, and its method, duration and cost, can only be determined after an in-person diagnostic workup (X-ray and intraoral scan). Appointments: +82-2-552-3000

Last updated: 2026.08.02 · Reviewed by Dr. Keun-Hye Lee, Orthodontic Specialist