Diagnosis First
Five Examinations Before the Injection
Not all jaw pain comes from the muscles We first confirm whether an injection is needed
TMJ X-ray
Checking bone and joint structure
Quantitative Bite Force Measurement
Left-right balance of biting force, in numbers
Head & Neck Muscle Palpation
Mapping the painful muscles
Shimstock 8μm Occlusal Test
Detecting subtle premature contacts
Tooth Wear Assessment
Reviewing the record of accumulated force
Why Dentist
Jaw Botox — Why at a Dental Clinic?
Botox is familiar as a dermatology or plastic
surgery procedure. But the target of jaw botox is
not the skin — it is the chewing muscles and jaw function.
The target is not the skin, but the chewing muscles
The masseter, temporalis, and medial pterygoid that jaw botox addresses are the muscles of mastication. Dentistry is the field that works with these muscles, the jaw joint, and the bite every day.
We measure your biting force before the procedure
With exams that assess chewing function — quantitative bite force measurement, tooth wear assessment, muscle palpation — we can first judge whether the procedure is actually needed.
There is a next step after lowering the force
After the injection lowers the force, protecting the teeth with a stabilization splint and managing the cause with physical and exercise therapy all continue in one place.
We can reach the muscles inside the mouth
The medial pterygoid, involved in deep pain in front of the ear and inside the jaw and in limited mouth opening, must be accessed from inside the mouth — an area a dental setting is equipped to handle.
A legally recognized area of dental practice
Botulinum toxin treatment of the jaw and facial area by dentists is an area of practice recognized by a Supreme Court of Korea ruling (2016).
At our hospital, Dr. Yuseong Kim, Hospital Director,
Clinical Professor at Yonsei University and board-certified
prosthodontist, joins in on bite analysis and combined splint planning.
Muscle Map
Same Jaw Botox, Different Purposes
Cosmetic
Therapeutic
(Our Clinic)
Goal
Change in facial contour
Pain relief and recovery of chewing function
Target muscles
Mostly the masseter only
Temporalis, masseter, or medial pterygoid, chosen by symptoms
Site & dosage basis
Symmetry and volume
Tender points, left-right bite force difference, wear patterns
Pre-treatment exams
Usually none
Five exams: X-ray, bite force, palpation, occlusion, wear
Combined care
Usually none (stand-alone)
Combined with splint, physical therapy, and exercise
When pain sits in a different spot,
a different muscle needs attention
Masseter
Masseter
The muscle responsible for strong biting force
Pain along the side of the jaw and cheeks, often related to clenching and grinding.
Temporalis
Temporalis
The muscle that closes the mouth and pulls the jaw
Can appear as throbbing headache-like pain around the temples.
Medial Pterygoid
Medial pterygoid
A deep muscle that closes the jaw and moves it sideways
Related to deep pain in front of the ear and inside the jaw, and to limited mouth opening. This muscle requires access from inside the mouth.
Two Roles
Botox Lowers the Force,
The Splint Protects the Teeth
They are not substitutes — their roles differ.
When grinding or clenching has already worn the teeth,
an injection alone cannot protect them.
Tooth Wear
An accumulated record showing how much force your jaw has been producing over time.
Bite Force Measurement
We confirm, in numbers, where the force is currently concentrated.
Botulinum Toxin
It lowers the intensity of the force a muscle produces. However, it does not remove the biting habit itself.
Occlusal Stabilization Splint
It spreads the remaining force widely and keeps the teeth from striking each other directly.
Botulinum toxin reduces the amount of force, and the stabilization splint protects the teeth. Depending on your exam results, some patients are managed with the splint alone, while others have both planned together.
Process
This Is How We Proceed
Five Examinations
TMJ X-ray, bite force measurement, muscle palpation, shimstock occlusal test, and wear assessment confirm the source of the pain first.
Choosing Target Muscles & Dosage
Based on tender points and the left-right bite force difference, we decide which of the temporalis, masseter, or medial pterygoid to treat, and at what dosage.
Injection
We treat only the muscles indicated by the exam findings. When needed, a stabilization splint and physical therapy are planned alongside.
Follow-Up & Re-Evaluation
We recheck your symptoms and exam findings, then set the next plan. Whether to repeat is decided by how you progress.
Botulinum toxin is not covered by insurance. Its effect is not permanent, and how long it lasts varies from person to person. Effects, limits, and possible reactions are all explained before the procedure.
Honest Guide
What We Always Tell You Before the Procedure
We believe knowing the limits first is the start of a good decision
The effect is not permanent
Muscle function returns over time, and how long the effect lasts varies from person to person. We do not plan on indefinite repetition — appliance and exercise therapy manage the underlying cause alongside.
Chewing strength may weaken temporarily
Because the treatment lowers biting force, the strength to chew hard foods may be temporarily reduced in the early period after the injection.
Changes in facial expression have been reported
Though rare, effects on nearby muscles have been reported. All possible reactions are explained before the procedure.
Some patients are not candidates
Pregnancy, breastfeeding, neuromuscular conditions, and similar situations may exclude the procedure. We review this together during your consultation.
We do not promise contour changes
Therapeutic treatment aims at pain relief and functional recovery. Changes in appearance vary greatly between individuals and are not something we can assure.
More Than a Place
That Gives Injections
A hospital director who is a Yonsei University
clinical professor and a certified TMJ therapy doctor
plan together, from exams to combined splint care
Dr. Yuseong Kim
Chief Director · Hospital Director
- · Current) Clinical Professor, Yonsei University
- · Board-certified prosthodontist (Ministry of Health and Welfare)
- · Board-certified in advanced general dentistry (Ministry of Health and Welfare)
- · Certified institution for TMJ stimulation therapy · Completed TMJ disorder training
As a prosthodontist who deals with biting force and occlusion, he joins in on bite-force analysis and combined splint planning. He also teaches junior dentists as a clinical professor at Yonsei University.
Dr. Jiheon Kim
Director
- · Certified in temporomandibular joint therapy
- · Researcher, Dept. of Medical Informatics, Seoul National University College of Medicine
- · Certified oral examination doctor, National Health Insurance Service
He confirms the source of the pain through examination, then decides the target muscles and dosage.
“Botulinum toxin is only one way of lowering muscle force. Only when occlusion and appliances are considered together can lowering the force lead on to a plan that protects the teeth and the joint.”
- Dr. Yuseong Kim, Chief Director · Hospital Director
5 Yonsei-Trained Specialists
Yonsei Ona Dental
Expert Medical Team
Dr. Yuseong Kim
Chief DirectorCurrent) Yonsei University Clinical Professor
Board-Certified Prosthodontist (MOHW)
Board-Certified Integrated Dentistry Specialist (MOHW)
- Chief Director, Yonsei Ona Dental Hospital
- Yonsei University College of Dentistry Graduate
- Yonsei University Dental Hospital Clinical Practice
- Yonsei University Dental Hospital Intern
- Ajou University Dental Hospital Resident
- Master's Degree in Periodontal Implant Prosthodontics, Ajou University
- Certified Prosthodontist (Ministry of Health and Welfare)
- Taiwan Bio Tech Consulting Physician
- Implant Placement Patent No. 10-2537546
- Dental Stapler Patent Pending
- Advanced Cardiac Life Support (ACLS) Provider
- CPR Certification
- Korean Academy of Prosthodontics Digital Master Course
- UCLA Dental Hospital Externship
- TMJ Therapy Certification
- TMJ Disorder Training Completed
- TMJ Disorder Education & Research Association Member
- Korean Academy of Prosthodontics Member
- Korean Academy of Oral and Maxillofacial Implantology Member
- Korean Academy of Esthetic Dentistry Member
- Korean Academy of Conservative Dentistry Member
- Former) Vice Director, Boryeong Hana Plant
- Former) Vice Director, Ace Dental
- Former) Vice Director, Ansan Yonsei Dental
Dr. Jinhyung Kim
DirectorCurrent) Yonsei University Clinical Professor
Board-Certified Integrated Dentistry Specialist (MOHW)
- Director, Yonsei Ona Dental Hospital
- Yonsei University College of Dentistry Graduate
- Yonsei University Dental Hospital Clinical Practice
- Taiwan Bio Tech Consulting Physician
- Korean Public Health Dentists Association Representative
- TMJ Therapy Certification
- TMJ Disorder Training Completed
- TMJ Disorder Education & Research Association Member
- Korean Academy of Prosthodontics Member
- Korean Academy of Oral and Maxillofacial Implantology Member
- Korean Academy of Esthetic Dentistry Member
- Korean Academy of Conservative Dentistry Member
- U-Penn Endo Course Completed
- Osstem Master Course Completed
- Former) KDCA Oral Examiner
- Former) Dental Director, Dongbu Detention Center Medical Department
- Former) Vice Director, Smile365
- Former) Vice Director, Kim's Plant
Dr. Jinwoo Choi
DentistBoard-Certified Prosthodontics Specialist (MOHW)
Board-Certified Integrated Dentistry Specialist (MOHW)
- Yonsei University College of Dentistry Graduate
- M.S. in Periodontics-Implant Prosthodontics, Ajou University
- Resident, Ajou University Dental Hospital
- Advanced Cardiac Life Support (ACLS) Provider
- Korean Academy of Oral & Maxillofacial Implantology Member
- Korean Academy of Prosthodontics Member
- Korean Academy of Esthetic Dentistry Member
- Korean Academy of Conservative Dentistry Member
Dr. Jiheon Kim
DentistResearcher, Dept. of Biomedical Informatics, Seoul National University College of Medicine
TMJ Therapy Certification
- Researcher, Department of Biomedical Informatics, Seoul National University College of Medicine
- National Health Insurance Corporation Certified Oral Examiner
- TMJ Therapy Certified Dentist
- Korean Academy of Oral & Maxillofacial Implantology Member
- Korean Academy of Prosthodontics Member
- Korean Academy of Esthetic Dentistry Member
- Korean Academy of Conservative Dentistry Member
- Former) Vice Director, Hanaplant Dental Clinic
- Former) Vice Director, Osan Kingkong Dental Clinic
- Former) Vice Director, Dasi Jeolmeojineun Dental Clinic
Dr. Seungmin Ryu
Orthodontics DirectorBoard-Certified Orthodontist (MOHW)
Yonsei University College of Dentistry (Graduated with Honors)
- Yonsei University Dental Hospital Intern / Orthodontics Resident
- Korean Association of Orthodontists Certified & Member
- Yonsei University Orthodontics Research Association Member
- Yonsei University Graduate School Combined Master's & PhD Program (Orthodontics)
- UCSF & UOP Orthodontics Exchange Program
- World Federation of Orthodontists (WFO) Fellowship
- American Association of Orthodontists (AAO) Member
- Invisalign Certification
- Korean Dental Association Award - Yonsei University
- KAO Residency Academic Conference Excellence Award
- Taiwan International Orthodontics Representative (Korea)
- TAO & APOS International Orthodontics Excellence Award
- Yonsei University Orthodontics Department Outstanding Resident Award
SLOGAN
Your Family's Dental Home,
Yonsei Ona Dental
Caring for you like family,
with honest and conscientious treatment.
Our 5 Promises
We will diagnose honestly and never over-treat.
We will always research ways to save your teeth.
We will treat thoroughly, leaving nothing overlooked.
We will consider patient comfort and minimize pain.
We will provide clean treatments with sterilized instruments and equipment.
Why Yonsei Ona Dental
Is the Best Choice
Digital Facilities
& Specialist Care
Two Yonsei University Clinical Professors
and top specialists provide collaborative care
with cutting-edge technology
Designated Partner of
Major University Hospitals
Post-treatment follow-up care from university hospitals,
sharing clinical cases and close collaboration
Seoul National University Bundang Hospital
Yonsei Severance Hospital
Ajou University Hospital
Chung-Ang University Hospital
Dankook University Hospital
Active Academic Research
We collaborate with university professors, mentor residents,
and stay updated on the latest clinical data and research
Student Clinical Mentoring (Dr. Yuseong Kim)
Student Clinical Mentoring (Dr. Jinhyung Kim)
89th Korean Academy of Prosthodontics Conference Presentation
Extensive Clinical Experience
We continuously accumulate far more clinical experience than typical neighborhood dental clinics.
Latest Research Updates
We stay connected with university professors and mentor residents to keep up with the latest clinical data and research trends.
Implant Placement Patent Filed
We are dedicated to implant research.
Constantly striving for better treatments.
Dental Stapler Patent Pending
A Dentist's Guide to
Truly Safe Dental Treatment
Published for public oral health education
Spreading accurate dental knowledge
“We hope patients can receive treatment
with peace of mind, armed with proper knowledge
and free from fear of dental care”
- Dr. Yuseong Kim, Chief Director
365-Day Service
Evening Hours Available
Made possible by our large team and facility
Weekdays
Evening Hours
Weekends/Holidays
Regular Hours
Even during evenings and weekends,
our care is provided directly by
our Chief Directors themselves
Our Building
Yonsei Ona Dental Hospital
Sol Square Building, 2nd Floor
Sol Square Bldg. 2F, Guseong-dong, Giheung-gu, Yongin, Korea
5-min walk from Guseong Station Exit 2 (Suin-Bundang Line, GTX-A)
How to Find Us
Sol Square 2F, Guseong-dong, Giheung-gu, Yongin, Gyeonggi, Korea
Across from Daiso Yongin Guseong Store
From Guseong Station: Turn left → Pass Daiso → Turn right
From Emart Traders: Go straight 1km
From Suji IC: Exit towards Guseong → Go straight 1.5km
Convenient Parking Available
Sol Square Underground Parking (B1-B5)
※ Vehicle registration required at front desk
B2 and B4 have no elevator access. (B1, B3, B5 recommended)
Yonsei Ona Dental prioritizes your convenience.
From comfortable parking to pleasant treatment spaces,
we are building a patient-centered dental clinic.
Office Hours
Contact us using your preferred method
Learn About Various Treatments
Through Our Videos
Dental Stories from Yonsei Ona Dental's Chief Director
Featured on Medical Channel Biondwi
Health Program with Dr. Esther Yeo, Dr. Hong Hye-geol
Liberation from Dentures in Elderly
All-on-X Treatment
Yonsei Ona Dental Hospital - Dr. Yuseong Kim, Prosthodontist
Dr. Yuseong Kim, Chief Director
appeared as a full-arch implant specialist
to explain All-on-X treatment
Frequently Asked Questions
Will jaw botox make my TMJ pain go away?
Botulinum toxin is a treatment that lowers the force produced by the chewing muscles. It can help when muscle overactivity contributes to the pain, but not all TMJ pain comes from the muscles. That is why we do not recommend the injection first — we confirm where the pain comes from through examinations, and use it only when needed. Effects and limits are explained before the procedure.
How long does the effect last? Do I need to keep repeating it?
The effect of botulinum toxin is not permanent — muscle function returns over time, and how long it lasts varies from person to person. We do not plan on indefinite repetition. Instead, we manage the underlying cause with a stabilization splint and exercise therapy, aiming to reduce dependence on injections.
Are there any side effects?
Temporary weakening of chewing strength and possible changes in facial expression have been reported, so we explain all possible reactions before the procedure. Conditions that may exclude the procedure — such as pregnancy, breastfeeding, or neuromuscular disorders — are also reviewed during consultation. Your progress is checked together at follow-up visits.
Will jaw botox make my face look slimmer?
The goal of our care is pain relief and recovery of chewing function; we do not set the injection sites or dosage to change facial contour. As the chewing muscles become less active, some people notice a change in appearance, but this varies greatly between individuals and is not something we can promise. If cosmetic results are your main interest, please let us know during consultation.