Crown, Bridge and Denture Guide: Types, Health Insurance Rules, Treatment Time and Lifespan

A crown covers a damaged tooth entirely, a bridge joins an artificial tooth to the teeth on either side of the gap, and a denture is a prosthesis the patient removes and reinserts. In Korea, dental prostheses are generally not covered by national health insurance, but dentures and implants for people aged 65 and over are an exception, with a 30% copay. When only the crown prosthesis is made, treatment usually takes 1 to 3 weeks, and how long a prosthesis lasts depends more on the condition of the underlying tooth and care habits than on the material.

Published 2026-11-08 · Updated 2026-11-08 · DentalStatics editorial team

Key facts

Insurance principle for prostheses	Dental prostheses (including materials and lab fees) are uninsured; only dentures and implants for ages 65+ are exceptions (source: National Health Insurance Service (NHIS, 국민건강보험공단))
Senior denture coverage	Age 65+, 30% copay, 7-year benefit cycle (source: National Health Insurance Service (NHIS, 국민건강보험공단))
Senior implant coverage	Age 65+ with partial tooth loss, 2 per person for life, 30% copay (source: National Health Insurance Service (NHIS, 국민건강보험공단))
Implants for fully toothless seniors	Support planned from January 2027 (result of the September 2026 Health Insurance Policy Deliberation Committee) (source: Ministry of Health and Welfare (보건복지부))
When a crown is needed	Cavities, excessive wear, fractures, and protecting a tooth after root canal treatment (source: Korea Disease Control and Prevention Agency (KDCA, 질병관리청) National Health Information Portal)
Crown prosthesis duration	About 1 to 3 weeks and 1 to 3 visits when only the prosthesis is made (source: Korea Disease Control and Prevention Agency (KDCA, 질병관리청) National Health Information Portal)
Prosthesis lifespan	About 10 years in the literature; varies with tooth condition, hygiene and diet (source: Korea Disease Control and Prevention Agency (KDCA, 질병관리청) National Health Information Portal)
Uninsured price lookup	Compare by clinic on the HIRA website and the Geongang-eum app (753 items in 2026) (source: Health Insurance Review and Assessment Service (HIRA, 건강보험심사평가원) (as announced by Korea Policy Briefing))

How do crowns, bridges and dentures differ?

All three treatments restore missing or damaged parts of teeth with artificial materials. The difference lies in what they replace and how they are held in the mouth.

A crown is placed when the root is alive but the upper part of the tooth is badly damaged. A bridge is attached across one or two missing teeth, anchored to the teeth on both sides. Dentures are worn when many teeth, or all teeth in a jaw, are missing; they rest on the gums and remaining teeth and can be removed and reinserted.

Crown: a fixed prosthesis that covers the remaining part of a tooth
Bridge: a fixed prosthesis that joins the teeth on both sides of a gap into one unit after they are reshaped
Partial denture: a removable prosthesis held in place by clasps on the remaining teeth
Complete denture: a removable prosthesis used when an entire upper or lower jaw has no teeth

When is a crown placed?

The KDCA National Health Information Portal lists cavities, excessive wear or attrition, fractures and protection of a tooth after root canal treatment as reasons a crown is needed. A crown is considered when so much of the tooth is lost that a filling cannot hold up.

Molars that have had root canal treatment, or teeth that have been heavily ground down, split easily under chewing force and are often covered with a crown. If the remaining tooth wall is too thin, a post and core may be built first as an inner support before the crown is placed.

When are a bridge or a denture chosen?

A bridge can be made only if there are strong teeth in front of and behind the missing tooth to serve as supports. If the last molar is missing and there is no support behind it, a bridge is impossible, and an implant or partial denture is considered instead.

Dentures become a realistic option when many teeth are missing or when jawbone or general health makes implants burdensome. A partial denture is held by clasps on remaining teeth, while a complete denture stays in place by close contact with the gums. The choice depends on the number of remaining teeth, jawbone height, and everyday factors such as manual dexterity.

Because a bridge is fixed, chewing feels close to natural teeth, but healthy neighboring teeth must be ground down and the area under the connection must be cleaned separately with interdental brushes or floss. A denture does not require heavy reshaping of neighboring teeth, but it comes with a foreign-body feeling, an adjustment period, and the effort of removing and cleaning it after meals.

How far does health insurance cover prostheses?

Under the non-covered items standard announced by the National Health Insurance Service, dental prostheses, including materials and lab fees, are generally not covered by health insurance. For that reason, crowns and bridges on natural teeth are uninsured regardless of age.

The exception is dentures and implants for people aged 65 and over. Complete dentures and metal-base partial dentures are covered with a 30% copay and a 7-year benefit cycle. People aged 65 and over who still have some teeth can also receive up to 2 implants for life with a 30% copay.

In its briefing on the September 2026 Health Insurance Policy Deliberation Committee results, the Ministry of Health and Welfare announced that implant treatment would also be supported for seniors with no teeth from January 2027. Detailed criteria are finalized by public notice, so it is advisable to ask the NHIS or your dentist for the latest rules before planning a prosthesis.

How many visits and how long does a crown take?

For a crown prosthesis alone, the National Health Information Portal gives a treatment period of about 1 to 3 weeks and 1 to 3 visits. The sequence is to reshape the tooth and take an impression, fit a temporary tooth, and then check the bite and cement the finished crown when it arrives.

If root canal treatment is needed first, that time is added beforehand. Dentures require repeated impressions and try-ins, so they need more visits; even insured dentures proceed in 5 steps for a complete denture and 6 steps for a partial denture.

Diagnosis and treatment planning consultation
Reshaping the tooth to accommodate the prosthesis
Taking an impression with impression material or an intraoral scanner
Fitting a temporary tooth until completion
Checking fit and bite, then bonding with dental cement

How long does a prosthesis last?

KDCA materials describe prosthesis lifespan as about 10 years in the literature, while explaining that it varies with the condition of the tooth before treatment, oral hygiene, diet and maintenance. Even crowns made of the same material can last very different lengths of time from person to person.

It is common for a prosthesis to be remade not because it breaks but because decay or gum disease develops in the tooth beneath it. Cleaning carefully around the crown margin, using floss and having regular checkups are the basics of extending a prosthesis's life. If you grind or clench your teeth, discuss a protective device with your dentist.

The benefit cycle for insured dentures is set at 7 years, but that does not mean a denture must be replaced at that point. If the gums shrink and the denture loosens, it can often keep being used with a reline that reinforces the inner surface or with adjustments, so it is better to have it checked as soon as the fit feels different.

How can prosthesis costs be compared?

The cost of uninsured prostheses varies by dental clinic, material and tooth condition. Even for the same crown, the price differs by material such as metal, porcelain-fused-to-metal or zirconia, and by lab method.

The Health Insurance Review and Assessment Service publishes uninsured medical fees by institution on its website and the Geongang-eum app, covering 753 items in 2026. You can search by hospital name or by treatment item, so looking at the price range of prostheses at local clinics before a consultation makes it easier to compare quotes.

Detailed guides

Frequently asked questions

Is a crown covered by health insurance?

A regular crown placed on a natural tooth is a dental prosthesis and is uninsured. In insured implant treatment for ages 65 and over, the base-metal porcelain crown placed on the implant is a covered material, and the Ministry of Health and Welfare decided in December 2024 to add zirconia prosthesis materials to coverage as well.

From what age is insured denture coverage available?

From age 65. Resin-base and metal-base complete dentures and clasp-retained metal-base partial dentures are covered with a 30% copay, and people in the near-poverty group or on medical aid pay a lower rate.

Should I choose a bridge or an implant?

If the neighboring teeth have already been heavily treated, a bridge may be less burdensome; if they are clean, an implant, which does not require grinding neighboring teeth, may be considered. The answer depends on jawbone and general health, so it is best to hear the pros and cons of both before deciding.

My prosthesis is old. Do I have to replace it?

Replacement is not decided by age alone. It is considered when a gap opens, the prosthesis breaks, or decay develops underneath, so the first step is to have the condition of the tooth under the prosthesis checked with X-rays at a regular checkup.

Why do crown prices differ between clinics?

Crowns are uninsured, so each clinic sets its own price. Materials, labs and the scope of care included in the quote differ, so asking whether temporary teeth or core build-up are charged separately makes the comparison more accurate.

Can insured dentures be remade after they are received?

The benefit cycle for insured dentures is 7 years, so in principle no new support is available within that time. If there is a medical opinion that a new denture is unavoidable because the oral condition has changed severely, one additional remake is possible.

References

Korean version →