Pediatric Dentistry in Seoul
Gentle, prevention-first dental care for babies, children and teens: check-ups, fluoride, sealants, cavity treatment and early orthodontic checks, explained to parents in English, Chinese, Japanese or Korean.
- Since 2002
- 13 dentists
- In-house lab
- EN · 中文 · 日本語
When should my child first see a dentist?
Most dental associations advise a first visit within six months of the first tooth appearing, or by the first birthday, then check-ups every six months. At Gangnam One Day Dental Clinic, early visits focus on prevention: checking erupting teeth, applying fluoride, sealing back-tooth grooves and spotting bite problems early enough for simpler orthodontic guidance.
Reviewed by Dr. Kim Jin-hwan , Chief Director · Updated October 5, 2026
Prevention first: fluoride and sealants
Children's enamel is thinner than adult enamel, so cavities spread faster. Two simple treatments reduce the risk: fluoride varnish, painted on in a few minutes to strengthen enamel, and sealants, a thin coating that fills the deep grooves on back teeth where food gets trapped.
Sealants are usually placed when the first permanent molars erupt around age 6–7 and the second molars around age 11–13. No drilling or anaesthetic is needed.
Treating cavities in baby and adult teeth
Baby teeth matter: they hold space for adult teeth, and an infected baby tooth can affect the tooth developing underneath. Small cavities are treated with tooth-coloured fillings. Deeper decay in a baby tooth may need nerve treatment and a protective crown.
The dentist explains every step to your child in simple terms and keeps visits short. If a child is very anxious, a first visit may just be a look-and-count check to build trust.
- Check-ups and age-appropriate X-rays
- Fluoride varnish and sealants
- Tooth-coloured fillings
- Monitoring tooth eruption and loose baby teeth
- Advice on brushing, diet and thumb-sucking
Not sure if this is right for you? Send a photo or X-ray — a dentist replies on WhatsApp in English, Chinese or Japanese.
Get a free opinionEarly orthodontic evaluation
Many bite problems are easier to guide while the jaw is still growing. The clinic offers children's orthodontics through its orthodontics department led by Dr. Kim Do-hoon, and a check around age 7 shows whether early treatment would help or whether it is better to wait.
Common reasons for early treatment include crossbites, severe crowding and protruding front teeth. See our orthodontics page, or the family dentist page if parents need care too.
| Age 1–5 | Age 6–12 | |
|---|---|---|
| Check-ups | Every 6 months | Every 6 months |
| Fluoride varnish | Every 3–6 months | Every 3–6 months |
| Sealants | Rarely needed | On new permanent molars |
| X-rays | Only if needed | Periodically to check between teeth |
| Orthodontic check | Not usually | Around age 7 |
How it works at Oneday Dental
- Before
Tell us about your child
Send your child's age, any concerns and photos on WhatsApp. Mention if they are nervous or have had a difficult visit before.
- Visit 1
Gentle introduction
Your child meets the dentist, sits in the chair and has teeth counted and checked. Parents stay with younger children.
- Visit 1
Prevention
Teeth are cleaned and fluoride is applied. Sealants may be placed on permanent molars if they have erupted.
- If needed
Treatment
Cavities are treated in short appointments. Parents receive a clear explanation and estimate before any treatment.
- Every 6 months
Recall
Regular check-ups track tooth eruption, catch new cavities early and flag bite problems.
Things to know before you decide
- Very young or anxious children may not cooperate with treatment on the first visit; a short familiarisation visit may be needed.
- Sealants can wear or chip and are checked at each visit.
- Deep decay in baby teeth may need nerve treatment or extraction rather than a simple filling.
- Children with complex medical or behavioural needs may be better served by a dedicated pediatric hospital; the team will advise if so.
Experience you can check
- 2002Founded in Gangnam — 24 years
- 13Dentists in 5 departments
- 3Clinic buildings, 1,570 m²
- 0.01 mmT-Scan bite-force detail
Vice President, Korean Academy of Stomatognathic Function & Occlusion · author on T-Scan implant occlusion (IGI Global)
Children's Dentistry: common questions
Do baby teeth really need fillings if they will fall out?
Are dental X-rays safe for children?
My child is scared of the dentist. What can we do?
When should my child have an orthodontic check?
Can you explain things to my child in English?
How much does a child's dental visit cost?
You may also want to read
Family & General Dentistry
Family dentist in Seoul: check-ups, fillings, root canals, children's care and emergencies in Gangnam.
Learn more →Dental Fillings
Dental fillings in Seoul: tooth-coloured composite, glass ionomer and ceramic inlays from our in-house lab…
Learn more →Orthodontics in Seoul
Orthodontics in Seoul led by Dr. Kim Do-hoon: braces, Invisalign, clear aligners and protrusion correction…
Learn more →Dental Cleaning
Dental cleaning in Seoul: scaling, polishing and gum check in one visit in Gangnam, with English, Chinese…
Learn more →Emergency Dentist
Emergency dentist in Seoul for toothache, broken or knocked-out teeth, swelling and lost crowns.
Learn more →Browse: Dental Implants · Cosmetic Dentistry · Orthodontics · Gum Care · General Dentistry · International Patients · Home
Get a dentist's opinion on WhatsApp
Send your question, photos or X-ray. We reply with a plan, timeline and estimate in English, Chinese, Japanese or Korean.
