Book an Appointment 02-6298-2875

204, Halla Sigma Valley 2nd, Seongsu-dong, Seoul
Mon/Wed 10:00–21:00 (Evening)  |  Tue/Fri 10:00–19:00  |  Sat 10:00–14:00

Yonsei Severance Dental Seongsu Seoul — Premium dental clinic interior

As nature designed,
we restore the essence
of your teeth.

Double board specialist in Prosthodontics
& Comprehensive Dentistry — Dr. Ahn Do-gwan

02-6298-2875
Seongsu-dong, Seoul
Dr. Ahn Do-gwan — Double board specialist
Dr. Ahn Do-gwan
Ministry of Health certified
Prosthodontics · Comprehensive Dentistry
Naver Blog
Dr. Ahn's Clinical Philosophy Blog

Prosthodontics & Comprehensive
Double Board Specialist

One of a rare few in Korea holding dual board certifications, Dr. Ahn combines Ivy League training at Columbia University with a holistic, full-arch approach to precision dental care.

  • Yonsei University College of Dentistry — D.D.S.
  • Board Certified Specialist in Prosthodontics (Ministry of Health, Korea)
  • Board Certified Specialist in Comprehensive Dentistry (Ministry of Health, Korea)
  • M.S. in Periodontics, Prosthodontics & Implantology — Ajou University
  • Columbia University College of Dental Medicine  Ivy League Externship
  • Residency, Dept. of Prosthodontics — Ajou University Dental Hospital
  • Former Director — Leve Dental Clinic, Sinsa
  • Former Director — Moa Dental Clinic
  • Excellence Award — Korean Academy of Prosthodontics
  • Fellow & Recognized Member — Korean Academy of Prosthodontics
  • Member — Korean Academy of Oral & Maxillofacial Implantology (KAOMI)
  • Advisory Committee — Osstem Implant (AIC)
Prosthodontics Specialist Comprehensive Dentistry Specialist Columbia Univ. Externship

Premium Dental Services

World-class technology and a double board specialist's meticulous touch — for your complete oral health.

Virtual Simulation Implant — Ray 5D digital guided surgery system, Yonsei Severance Dental Seoul

Virtual Simulation Implant

Using Ray 5D technology, we build a precise digital model of your anatomy, simulate the optimal implant position through virtual surgery, and execute exactly as planned.

  • 3D virtual model simulation
  • Virtual surgery applied in real procedure
  • Optimal placement with surgical precision
Aesthetic prosthetics before — ceramic laminate veneers, Yonsei Severance Dental Seoul
Before
Aesthetic prosthetics after — ceramic laminate veneers result, Yonsei Severance Dental Seoul
After

Aesthetic Prosthetics

Ceramic laminates, all-ceramic crowns, and Digital Smile Design — crafted to perfection for your unique, premium smile.

  • Ceramic Laminate Veneers
  • Digital Smile Design (DSD)
  • Full-arch All-Ceramic Prosthetics
Conservative tooth treatment before — natural tooth preservation, Yonsei Severance Dental
Before
Conservative tooth treatment after — natural tooth preservation result, Yonsei Severance Dental
After

High-End Conservative Treatment

We go to every length to preserve your natural teeth. Our Admetec Ergo surgical microscope enables an entirely new level of precision in restorative care.

  • Admetec Ergo surgical microscope
  • Natural tooth preservation — always first

World-Class
Digital Technology

Only the finest medical equipment in the world —
for diagnosis and treatment without compromise.

Yonsei Severance Dental digital in-office milling lab — Raymill milling machine, Rayface face scanner, Ray Studio 3D printer

Digital In-Office Milling System

Our in-office digital lab enables precise, same-day prosthetic fabrication.

  • Raymill Milling Machine
  • Rayface Face Scanner
  • Ray Studio 3D Printer
Admetec Ergo surgical loupe — high-magnification precision dentistry, Yonsei Severance Dental Seoul

Admetec Ergo Loupe

High-magnification surgical loupe for detecting
and treating the finest tooth structures.

Nikon Z7II clinical photography system — 45MP high-resolution dental imaging, Yonsei Severance Dental

Nikon Z7II

High-resolution clinical imaging to document
your treatment journey accurately.

3
In-Office Lab Units
Same Day
Prosthetic Fabrication
Hi-Mag
Loupe Precision Care
0MP
Clinical Image Resolution

Getting Here

204, Halla Sigma Valley 2nd
Seongsu-dong, Seongdong-gu, Seoul

Near Ttukseom / Seoul Forest Station

Mon & Wed Evening 10:00 – 21:00
Tue & Fri 10:00 – 19:00
Saturday 10:00 – 14:00
Thursday Closed
Sun & Holidays Closed
Lunch break 13:30 – 14:30 (late lunch)
Line 2 Ttukseom Stn. Exit 1 — 10 min walk
Bundang Seoul Forest Stn. Exit 3 — 7 min walk
Parking In-building parking available (1 hr free)

Frequently
Asked Questions

Find answers to common questions before your visit. For a personal consultation, feel free to call us.

02-6298-2875
What is a Prosthodontics specialist? +

A board-certified prosthodontist is a dental specialist trained in the restoration and replacement of teeth. Dr. Ahn Do-gwan of Yonsei Severance Dental holds dual board certifications in Prosthodontics and Comprehensive Dentistry.

What is virtual simulation implant surgery? +

Using Ray 5D technology, a precise digital model of the patient's anatomy is created and computer-simulated surgery determines the optimal implant position before the actual procedure is performed.

What is the digital in-office milling system? +

Raymill, Rayface, and Ray Studio equipment allow prosthetics to be designed and fabricated in-house. This delivers higher precision and shorter turnaround times compared to external labs.

How do I book an appointment? +

You can book via Naver Reservation or by calling 02-6298-2875. We are open Mon/Wed 10:00–21:00 (evening hours), Tue/Fri 10:00–19:00, and Saturday 10:00–14:00. Closed on Thursdays, Sundays, and public holidays.

Is parking available at the clinic? +

Parking is available in the Halla Sigma Valley 2nd building. For details, please call 02-6298-2875.

Why does my tooth feel sensitive after a resin (composite) filling? +

Post-filling sensitivity usually has three causes: ①wrong adhesive system selection, ②not following proper bonding steps and application timing, and ③saliva or moisture contamination during treatment. Using a rubber dam to isolate the tooth, choosing the correct bonding agent for cavity depth, and strictly following each step's timing are essential. When speed is prioritized over protocol, these steps often get skipped — which is why choosing a clinic that follows the correct process matters.

Can cavities develop inside a crown? +

Secondary decay under a crown is typically caused by an imprecise crown margin. When the margin is not cleanly defined to a consistent 0.5mm boundary, microscopic gaps form between the crown and tooth, allowing bacteria to infiltrate. Precise tooth preparation — where the margin line is clearly visible all around — is the critical safeguard against secondary decay and the reason crown preparation demands exceptional skill.

How do dentists determine which tooth is actually causing pain? +

The tooth a patient believes is painful is not always the actual source. Like a detective eliminating suspects, the dentist runs cold tests, percussion tests, and bite pressure tests to systematically rule out possible diagnoses. Cracked Tooth Syndrome is particularly deceptive — it is often invisible on both visual examination and X-rays, making multi-step diagnostic logic essential before any irreversible treatment is started.

Is it possible to save the tooth nerve instead of doing a root canal? +

Vital Pulp Therapy (VPT) preserves the living tooth nerve when infection is limited and the pulp remains viable — avoiding the need for a full root canal. From a biomimetic dentistry standpoint, retaining the natural nerve and dentin structure is strongly preferable for long-term tooth survival. Eligibility depends on the extent of infection and pulp status, which is assessed by the specialist at diagnosis.

What can be done if dentures keep fitting poorly? +

Full lower dentures on a severely resorbed jawbone are among the most technically demanding prosthetic challenges in dentistry. Achieving proper fit requires multi-stage precision impressions (selective pressure impressions), careful bite registration, and biomechanical design — such as the RPI stress distribution system — to prevent denture clasps from damaging the remaining teeth. A board-certified Prosthodontist is the right specialist for persistent denture fit problems.

Why does the gumline of my tooth wear away even though I brush carefully? +

Gumline erosion is not always caused by over-brushing. The primary cause is the cumulative stress from chewing — every bite causes the tooth to flex slightly, and repeated microflexion at the neck of the tooth causes the enamel to chip away. This is called a Non-Carious Cervical Lesion (NCCL). When sensitivity develops, the lesion can be restored with composite resin contoured precisely to the original tooth shape.

Can the black triangles between my front teeth be fixed? +

Black triangles between front teeth can be filled using composite resin sculpted to match the natural tooth curve. The process requires bevel preparation to widen the adhesive surface, careful layering and shaping of the resin, and a thorough polishing to achieve a smooth, natural-looking result. Though often dismissed as a simple resin procedure, the outcome depends greatly on the clinician's artistic precision and technique.

What is the difference between same-day milled and handcrafted veneers? +

Same-day milled veneers are limited by the drill diameter of the milling machine, making it difficult to replicate the subtle micro-contours of natural enamel — often resulting in the flat, uniform look patients criticize online. Handcrafted veneers, made by a skilled dental artisan over several weeks, can match color translucency, surface texture, and light reflection to each patient's unique face shape and tone. Veneers are closer to cosmetic artistry than routine dentistry.

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