Home › Orthodontics › Adult Orthodontics

Orthodontics · Adults

Adult Orthodontics in Seoul: It Is Not Too Late to Straighten Your Teeth

There is no upper age limit for orthodontic treatment: if your gums and the bone supporting your teeth are healthy, teeth can be moved at 30, 50 or beyond. At Yonsei Baro near Isu Station, Seoul, Dr. Sally Chaekyung Lee treats adults with clear aligners or braces, in English, with evening and Saturday appointments.

Dr. Sally Chaekyung Lee in a consultation with a patient at Yonsei Baro, Seoul

Adult orthodontics at a glance

Question At Yonsei Baro
Age limit None, as long as gums and supporting bone are healthy
Checked first Gum health, bone levels, roots, existing crowns, bridges, implants and fillings
Options Invisalign, Angel Aligner, ceramic, lingual or metal braces
Visit frequency Braces about every 4–6 weeks; aligners about every 6–10 weeks
Hours for working adults Mon & Thu until 9 PM; Saturdays 9 AM–2 PM
Treated by Dr. Sally Chaekyung Lee, board-certified orthodontist, in English
Cost Written estimate after a full examination

Am I too old for orthodontic treatment?

No. Teeth move through the same biological process at any age: gentle pressure lets the bone around each root remodel. What matters is not your age but the health of your gums, bone and roots. Adults often seek treatment because their teeth have become more crowded over the years, because they never had treatment as children, or because a dentist has suggested straightening teeth before new crowns or implants.


Adult treatment differs from children’s treatment in a few ways. Jaws have stopped growing, so growth cannot be used to correct jaw differences, and planning has to account for existing dental work and any gum changes. Treatment can feel more of a commitment, too, alongside work, family and travel. A careful diagnosis and a realistic plan make the difference.

A personal perspective from Dr. Lee

Dr. Sally Chaekyung Lee understands adult treatment from both sides of the chair. She had orthodontic re-treatment herself in her thirties, so she knows the practical questions adults bring: how an appliance will look at work, how to fit visits into a busy week, and what it is like to start again after earlier braces. That experience shapes how she explains options to adult patients, calmly and without pressure.

What does Dr. Lee check before adult treatment?

Your first visit is an examination of about 60 minutes, with an intraoral digital scan, photographs, and X-rays or a 3D CT scan. Before recommending any tooth movement, Dr. Lee looks closely at:


  • Gums and bone. Gum disease must be treated and stable before teeth are moved. If your gums need care first, we will ask you to have this done with your dentist or a gum specialist.
  • Roots. The 3D CT shows root length and position, which matters if you have had orthodontic treatment before.
  • Crowns, bridges and veneers. Teeth with crowns can usually be moved, but bonding to them needs a different technique, and some restorations may need to be remade once teeth are in their new positions.
  • Implants. Dental implants are fused to the bone and cannot be moved, so the plan is built around them.
  • Your bite and face. Dr. Lee considers how your teeth meet and how your smile relates to your lips and face, not only how straight the front teeth look.


If you are planning implants or crowns, see orthodontics before implants and crowns . If teeth have moved since earlier braces, see orthodontic re-treatment .

Which options suit adults?

Many adults prefer a discreet appliance:



Sometimes only a few teeth need attention. Dr. Lee may consider limited treatment , but only after confirming it will not upset your overall bite. Our braces vs clear aligners guide compares the main choices, and you can see a published adult Invisalign case for crowded front teeth (shared with consent; results vary).

Fitting treatment around work

We are open until 9 PM on Mondays and Thursdays and from 9 AM to 2 PM on Saturdays, as well as Tuesday and Friday daytimes. Aligner check-ups are about every 6–10 weeks and braces visits about every 4–6 weeks. If something comes up between visits, send us a message by WhatsApp or KakaoTalk. Dr. Lee explains everything in English, and English receipts and itemised statements are available for insurance claims .

Adult orthodontics FAQs

  • Is there an age limit for braces or clear aligners?

    No. Age itself is not a barrier to moving teeth. What matters is that your gums are healthy and there is enough bone around the roots. Dr. Lee checks this carefully with a clinical examination and X-rays or, when useful, a 3D CT scan before recommending treatment. If your gums need care first, treatment can often start once they are stable.

  • Can teeth with crowns, bridges or implants be moved?

    Crowned teeth can usually be moved, although bonding brackets or attachments to them needs a different technique. Teeth joined by a bridge move together as one unit. Implants are fused to the bone and cannot be moved, so Dr. Lee plans around them. Some restorations may need to be replaced after treatment to fit your new bite.

  • Will orthodontic treatment fit around a full-time job?

    Usually, yes. We are open until 9 PM on Mondays and Thursdays and on Saturday mornings. Aligner visits are about every 6–10 weeks and braces visits about every 4–6 weeks. Clear aligners and ceramic or lingual braces are discreet, and you can message us by WhatsApp or KakaoTalk if a problem comes up between visits.

  • Does adult treatment take longer than treatment for teenagers?

    Not always. Treatment time depends mainly on how much your teeth and bite need to change. Adults no longer have jaw growth to help, and existing dental work or gum changes can affect planning, so some cases take longer. Dr. Lee gives you an estimated timeline for your own case after your examination.

  • Can my private health insurance reimburse adult orthodontic treatment?

    That depends entirely on your policy, so check with your insurer before you start. Orthodontic treatment is generally not covered by Korea’s National Health Insurance. We can provide English receipts, itemised statements, medical certificates and doctor’s letters to support your claim; ask your insurer which documents they need. We do not bill insurers directly.

Medically reviewed by Dr. Sally Chaekyung Lee, DDS, PhD
Board-certified orthodontist (Korea Ministry of Health and Welfare) · Adjunct Professor of Orthodontics, Yonsei University · Last updated October 2026

This page is general information, not a diagnosis. Treatment results and duration vary from person to person. Orthodontic treatment can cause temporary discomfort and, in some cases, root shortening, gum recession or tooth decay if oral hygiene is poor; teeth can relapse if retainers are not worn as instructed.

Talk to Dr. Lee about adult treatment

Send us your concern and preferred dates. Dr. Lee will examine you herself and explain your options in English. Isu Station Exit 2 · Open until 9 PM Mon & Thu · Saturdays 9 AM–2 PM.