The same dental clinic charges twenty thousand won on one visit and six hundred thousand on another. There is one reason the figures diverge so sharply: covered and non-covered treatment sit side by side in the same appointment.
Two words explain most of it
Covered treatment is recognised by national health insurance, and you pay only a set percentage of it. Non-covered treatment falls outside insurance, so you pay the full amount and the price can differ between clinics. Clinics are required to display their non-covered prices, and prices can be compared across institutions through the review agency.
A dental bill is the sum of five parts
This is why the receipt is never a single line. Consultation, examination and imaging, anaesthesia, the procedure itself, and materials and laboratory work are each charged. It is why people come out of a sealant appointment having paid more than they expected: the procedure itself carries a low co-payment rate, but the consultation and the X-ray are calculated separately on top of it.
What insurance does cover
- Scaling — age 19 and over, once per year. The year runs 1 January to 31 December, and anything beyond one session may be charged as non-covered
- Fissure sealant — age 18 and under, on eligible teeth without decay. Co-payment 10%
- Composite resin fillings for children — ages 5 to 12, permanent teeth with decay. Co-payment 30% at a dental clinic on an outpatient basis
- Root canal treatment — a co-payment of 30% at a dental clinic is the rate cited in official guidance
- Dentures — age 65 and over, 30% of the total benefit cost. Treatment runs in stages, and changing clinic partway carries restrictions
- Implants — age 65 and over with partial edentulism, two per person in a lifetime, with 30% co-payment as the standard
What stays non-covered
For adults, crowns and bridges are non-covered as a rule. Dentures and implants for those aged 65 and over are the exception to that. One recent change worth knowing: for insured implants in that age group, zirconia crown material was brought into coverage for treatment from 1 February 2025.
What actually drives the difference between a small bill and a large one is the choice of material and prosthetic. Before treatment starts, ask which items are covered and which are not, and for anything non-covered, ask the price first rather than after. The Health Insurance Review and Assessment Service publishes the criteria for each item and lets you compare non-covered prices between clinics.
The full breakdown by item, including co-payment rates, age conditions and how to read a Korean dental receipt, is in the dental insurance guide on the WeBring blog.