Implant vs Bridge vs Denture: Differences in Surgery, Duration, Neighboring Teeth and Korean Health Insurance

A missing tooth is replaced with one of an implant, a bridge or a denture. The Korea Disease Control and Prevention Agency (KDCA, 질병관리청) explains that an implant does not grind down neighboring natural teeth and its chewing ability is close to that of natural teeth, but it is costly, takes long and needs surgery, while a denture involves less cost, time and surgical burden but brings a foreign-body feeling and care inconvenience. In Korea, people aged 65 or older get health insurance for implants and dentures, but bridges are not covered.

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

Key facts

Implant	Does not grind neighboring teeth, needs surgery, high cost and long duration (source: KDCA National Health Information Portal)
Bridge	Joined by grinding down the teeth on both sides as supports; may not be suitable depending on the situation (source: KDCA National Health Information Portal)
Denture	No surgery and low cost, but a foreign-body feeling and care inconvenience such as cleaning after meals (source: KDCA National Health Information Portal)
Implant insurance for 65+	Partial edentulism, 2 for life, 30% copay (source: National Health Insurance Service (NHIS, 국민건강보험공단))
Denture insurance for 65+	Once every 7 years for each of the upper and lower jaw, 30% copay (source: National Health Insurance Service (NHIS))
Bridge insurance	Non-covered as a dental prosthesis (only dentures and implants for 65+ are exceptions) (source: National Health Insurance Service (Rules on Medical Care Benefit Criteria, Appendix 2))

How do implants, bridges and dentures differ?

An implant places an artificial root in the bone at the missing site and replaces only that tooth. A bridge grinds down the teeth on both sides of the missing tooth to use them as pillars and joins three or more crowns into one piece. A denture is a prosthesis that rests on the gums and remaining teeth and is taken out for cleaning.

They differ in the method of fixation, the effect on neighboring teeth, whether surgery is needed, treatment duration and care, so it is hard to rank them by a single criterion. The choice is made by weighing the condition of the remaining teeth and jawbone, general health, and the burden of cost and time.

Implant: fixed, surgery needed, preserves neighboring teeth
Bridge: fixed, no surgery, grinds down teeth on both sides
Denture: removable, no surgery, taken out and cleaned daily

When is an implant the right choice?

The KDCA lists as typical cases for considering an implant: when the rearmost molar is missing and there is no tooth to anchor a bridge, when you do not want neighboring natural teeth ground down, and when dentures are uncomfortable and you want a fixed option.

However, if jawbone is lacking a bone graft is needed, and uncontrolled diabetes, smoking and some osteoporosis medications affect treatment. Since it generally takes 3-4 months to bond with the bone, the schedule must also be considered if you have a reason to chew soon.

If you are 65 or older and some teeth remain, deciding at which site to use the 2 insured implants is also an important judgment. The order is decided within the treatment plan for all remaining teeth, for example for sites where a bridge is difficult or sites often used for chewing.

When is a bridge the right choice?

It is considered when there are sturdy teeth on both sides of the missing tooth and those teeth already have crowns or large fillings and would need a prosthesis anyway. There is no surgery, and the treatment period tends to be shorter than for an implant.

The KDCA explains that a bridge uses the teeth on both sides as supports, so it may not be suitable depending on the situation. Healthy neighboring teeth must be ground down, and if decay or gum disease develops in a pillar tooth, the whole bridge may need to be redone. Floss cannot go directly under the joined crowns, so they must be cleaned with special tools.

When is a denture the right choice?

It is considered when many teeth are missing or all the teeth in one jaw are gone, when severe jawbone resorption makes an implant difficult, or when surgery and a long treatment period are a burden. The KDCA introduces dentures as an alternative for those who want to reduce the burden of cost, time and surgery.

In exchange, there is a foreign-body feeling, chewing efficiency is lower than with natural teeth, and the denture has to be taken out and cleaned after every meal. Getting used to speech and chewing takes weeks to months, and since the jawbone keeps changing, periodic adjustment and remaking are needed. An implant denture, in which a denture is fixed with implants, is also an option.

How does health insurance in Korea apply differently to the three methods?

People aged 65 or older with partial edentulism, meaning some teeth remain, can receive up to 2 implants for life and dentures once every 7 years for each of the upper and lower jaw through health insurance, and a regular member's copay for both is 30%. Implant coverage can also be received for a jaw that already has an insured partial denture.

A bridge belongs to the dental prostheses that the rules on medical care benefit criteria set as non-covered, so it is non-covered regardless of age. Under age 65, all three methods are non-covered, so compare non-covered prices by clinic. The Ministry of Health and Welfare announced that from January 2027 it plans to support 2 implants even for people aged 65 or older who have no teeth.

Implant (65+ with partial edentulism): 2 for life, 30% copay
Denture (65+): once every 7 years for each of the upper and lower jaw, 30% copay
Bridge: non-covered regardless of age
Under 65: all three methods non-covered

Common myths and facts

Myth: An implant is always the best method.

Depending on jawbone, systemic disease, and the burden of cost and time, a bridge or a denture may suit better. The KDCA also introduces dentures as an alternative when bone resorption is severe.

Myth: After 65, bridges are also covered by health insurance.

Coverage for 65 and over is limited to dentures and implants, and bridges are non-covered.

Frequently asked questions

What is better if one molar is missing?

If the teeth on both sides are healthy, consider an implant, which does not grind them down; if the neighboring teeth already have major treatment, consider a bridge as well. Decide with the dentist after comparing bone condition, cost and duration. In a spot where teeth exist on only one side, such as the rearmost molar, a bridge may be difficult.

Can I switch from a denture to an implant?

If there is enough jawbone, yes. For people 65 or older with partial edentulism, implant coverage can be received even for a jaw that already has an insured partial denture, and there is also a way to add implants when remaining teeth are lost.

How long can a bridge be used?

It varies greatly with the decay and gum condition of the pillar teeth. Cleaning under the joined crowns daily with special floss or interdental brushes and getting regular check-ups is the way to make it last. If a pillar tooth develops sensitivity or a smell, get it checked early.

Can I have a denture and an implant together?

Yes. A partial denture and an insured implant can be done at the same time, and there is also a method of fixing a denture with implants. The scope of insurance differs by form, and a method of fixing a denture with ball-type abutments does not meet the insured implant criteria, so check with the dentist in advance.

Is there a problem if I leave a lost tooth as it is?

Neighboring teeth may tilt toward the gap, or opposing teeth may extrude, disturbing the bite. With any method, putting it off for a long time can reduce the options, so consult a dentist after the tooth is lost.

References

Korean version →