Yonsei First Oral Medicine Dental Clinic (TMJ Clinic)

Seoul Gangnam

Overview

An oral medicine dental clinic on the 7th floor of the Hyecheon Building, right by Gangnam Station Exit 4. Two co-directors, Dr. Lee Jeong-eun and Dr. Woo Geon-cheol, both board-certified oral medicine specialists with doctorates from Yonsei University College of Dentistry where they also teach as adjunct professors, treat jaw and mouth pain and function problems that general dental clinics rarely handle: TMJ disorders, teeth grinding and clenching, snoring and sleep apnea, mouth ulcers and dry mouth, and jaw dislocation. Both jaw joints are imaged at once with a low-dose cone-beam CT, a diagnostic program developed by Yonsei dental hospital faculty and a fast-track MRI link with a partner hospital help find the cause, and treatment combines custom splints, mandibular advancement devices, Botox and physical therapy. Every treatment room is private, and evening hours until 9 pm on Tuesdays and Thursdays plus Saturday clinic make it easy to fit into a short stay.

* Treatment costs are confirmed during consultation. Prices shown are average reference prices.

Photos

Specialties

Dental

5,000+ Hospitals

Key Highlights

Two board-certified oral medicine specialists treat together — both co-directors hold Yonsei dental doctorates and adjunct professorships

Focused on jaw and mouth pain that general dentists rarely treat: TMJ, grinding, snoring and mouth ulcers

Low-dose cone-beam CT images both jaw joints at once, with fast-track MRI at a partner hospital

In-house splints and snoring devices, plus the clinic’s own "T-tox" Botox technique

All private treatment rooms and a dedicated TMJ physical therapy room

1 minute from Gangnam Station Exit 4, open until 9 pm on Tuesdays and Thursdays and on Saturdays

Programs for International Patients

This clinic does not offer general dentistry; it focuses only on oral medicine, the care of jaw and mouth pain and function. These programs package care that is hard to find at home into options that fit your stay, one minute from Gangnam Station.

Same day · 1 visit

TMJ Precision Check-up

Unexplained jaw pain or clicking, checked in one visit by an oral medicine specialist

For

Anyone with jaw clicking or limited mouth opening, those wondering whether headaches or pain around the ears come from the jaw, and those who cannot find an oral medicine specialist at home

Includes

Examination and interview by an oral medicine specialist
Low-dose cone-beam CT of both jaw joints at once
Analysis with a TMD diagnostic support program
Explanation of results and a treatment plan, including how to continue at home
Fast-track MRI at a partner hospital if needed (separate)

Schedule · One visit · duration confirmed when booking

※ The language and fee for diagnostic documents are confirmed with the clinic when booking.

Cost: confirmed after examination

Same day · beauty + treatment

Bruxism & Jawline T-tox

Treats grinding and clenching while slimming the jawline — the clinic’s own Botox method

For

Those who grind their teeth at night or clench during the day, those bothered by a square jaw from developed jaw muscles, and travelers who want a same-day procedure

Includes

Oral medicine specialist examination to assess the muscles and plan injection sites
T-tox combining trigger-point injection and Botox (masseter and temporalis)
Products with a low risk of resistance
Guidance on re-treatment timing (3–6 months) and care at home

Schedule · One same-day visit · continue your plans right after

※ Results and duration vary by person, and suitability is decided after examination.

Cost: confirmed after examination

Stay · 3–5 days

TMJ Intensive Care Stay

From diagnosis to a custom splint and physical therapy, starting treatment within a short stay

For

Those with long-standing jaw pain, clicking or limited opening, morning jaw stiffness or headaches, and those who want to start treatment in Korea and continue at home

Includes

TMJ precision diagnosis (cone-beam CT and diagnostic program)
Custom splint (stabilization appliance) made, fitted and adjusted
TMJ physical therapy
Training on device use and daily habits
Progress check after you return home through MediQueen

Schedule · 2–3 visits (diagnosis and impressions → fitting → adjustment) · a 3–5 day stay is recommended to match device production; exact timing confirmed when booking

※ Treatment length and device type depend on the diagnosis.

Cost: confirmed after examination

Stay · great for companions

Snoring & Sleep Apnea Oral Appliance

Cause analysis and a custom mandibular advancement device — dental care that keeps the airway open while you sleep

For

Those whose snoring troubles the family, those told they stop breathing in their sleep, and those who find CPAP hard to use

Includes

Imaging, oral examination and TMJ analysis to find the cause
Custom prescription of the clinic’s own First-Somno or the approved Somnodent
Device fitting adjustment and usage training
Referral guidance for a sleep study if needed

Schedule · Two or more visits (diagnosis and impressions → fitting and adjustment) · production time confirmed when booking

※ Sleep apnea may need other treatment depending on severity, so suitability is decided after examination.

Cost: confirmed after examination

Athletes & teams

Custom Sports Mouthguard

Custom-made with pro-team partnership experience — while training or competing in Korea

For

Athletes in contact sports such as rugby, combat sports and hockey, overseas teams training or competing in Korea, and athletes who clench hard

Includes

Check of oral and jaw joint condition
Impressions and a custom mouthguard (First-Mouthguard)
Fit adjustment
Group scheduling for teams (arranged by MediQueen)

Schedule · Two visits: impressions → pickup · production time confirmed when booking

※ Group size and schedule need to be arranged with the clinic in advance.

Cost: confirmed after examination

Medical care varies by individual condition; details and timing are decided after examination.

TMJ care: from diagnosis to after you fly home

1
Pre-consultation
Share your symptoms (pain, clicking, mouth opening, grinding, snoring) and travel dates through MediQueen in advance
2
Detailed diagnosis
Examination by an oral medicine specialist, cone-beam CT of both jaw joints, diagnostic program analysis and partner-hospital MRI if needed
3
Treatment plan
Splints, devices, Botox and physical therapy are combined by cause and scheduled around your stay
4
Device fitting and treatment
Custom devices are made and adjusted, with Botox and physical therapy (devices need production time, so timing is planned)
5
Follow-up after returning home
Guidance on device use and revisit timing, with progress questions handled through MediQueen

Steps and timing vary by individual condition

Signature Treatments

턱관절장애(TMD) 치료

Cause found with cone-beam CT, a diagnostic program and MRI when needed, then treated with splints, physical therapy and injections

맞춤 스플린트(교합안정장치)

Stabilization splints (CRS), traction appliances and other devices chosen by symptom

이갈이·이악물기 치료

Botox for the masseter and temporalis muscles combined with a night guard

티톡스(T-tox) 보톡스

The clinic’s own method combining trigger-point injections with botulinum toxin, using low-resistance products at 3–6 month intervals (also slims a square jaw)

코골이·수면무호흡 구강장치

In-house mandibular advancement device (First-Somno) or the internationally approved Somnodent, prescribed after analyzing the cause

구내염·구강건조 클리닉

Persistent mouth sores and inflammation are assessed, including screening for oral cancer

맞춤 스포츠 마우스가드

Custom mouthguards built on experience from an official partnership with a professional sports team

Costs are confirmed after examination, depending on symptoms, tests and the type of device.

Medical Team

Lee Jeong-eun

Co-director · Board-certified Oral Medicine Specialist · Integrated Dentistry Specialist

Doctor of Dental Science and adjunct professor at Yonsei University College of Dentistry; former postdoctoral researcher in the Department of Oral Medicine at Yonsei University Dental Hospital. Publications director of the Korean Academy of TMJ and Occlusion; member of the Korean Academy of Orofacial Pain and Oral Medicine, the Korean Sleep Society and the Korean Headache Society. Translator and author of an atlas on botulinum toxin for masseter hypertrophy, sleep bruxism and headache, and co-author of a book on Botox treatment for sleep bruxism.

Woo Geon-cheol

Co-director · Board-certified Oral Medicine Specialist · Integrated Dentistry Specialist

Doctor of Dental Science and adjunct professor at Yonsei University College of Dentistry; former head of oral medicine at the Armed Forces Capital Hospital and former director of the Armed Forces Athletic Corps sports mouthguard program. Continuing-education lecturer for the Korean Dental Association and industry-academic cooperation director of the Korean Academy of TMJ and Occlusion.

Facilities & equipment

Low-dose cone-beam CT
Images both jaw joints in one scan
Private treatment rooms
Every treatment in a single-patient room
TMJ physical therapy room
Physical therapy equipment for muscle and joint pain
Diagnostic support program
TMD diagnostic support program developed by Yonsei dental hospital faculty
Location and parking
1 minute from Gangnam Station Exit 4; building parking is limited, so public transport is recommended (paid lots nearby)

Credentials

Two board-certified oral medicine specialists (co-directors)
Both co-directors: Doctor of Dental Science and adjunct professor, Yonsei University College of Dentistry
Publications and industry-academic cooperation directors, Korean Academy of TMJ and Occlusion
Translation and co-authorship of professional books on botulinum toxin for sleep bruxism and the masseter

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Hospital Info

Location

Seoul Gangnam

Address

Suite 703, 7F Hyecheon Building, 354 Gangnam-daero, Gangnam-gu, Seoul (1-minute walk from Gangnam Station Exit 4)

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Phone

02-554-2080

Website

firsttmj.imweb.me

Hours

Mon, Wed, Fri 10:00–19:00 · Tue, Thu 10:00–21:00 (evening hours) · Saturday clinic (confirm closing time when booking) · Lunch 13:00–14:00 · Closed Sundays and public holidays