Old dental fillings may need replacement due to wear, recurrent decay, cracks, discoloration, or leakage at the margins. Replacing them not only restores tooth health but also prevents further damage and improves appearance. In Korea, replacement options and costs vary based on the material chosen, the size of the filling, and the clinic’s standards.



Why Old Fillings Need Replacement

Fillings can deteriorate over time because of chewing forces, temperature changes, bruxism (teeth grinding), or secondary decay forming at the edges. Signs that a filling may need replacement include:

• Pain or sensitivity near the filling
• Dark lines or gaps around the filling
• Cracks or rough edges
• Food catching between teeth
• Visible staining or wear

A dental examination and X-rays help determine the extent of deterioration and the appropriate replacement plan.

Treatment Options and Typical Prices

1. Replacement with Composite Resin (White Filling)

Composite resin is a tooth-colored material that bonds to the tooth surface and provides good aesthetics.

Typical cost: ₩100,000 – ₩300,000 per surface

This is the most common replacement option for visible teeth or when aesthetics are important. Larger fillings may cost more depending on the number of surfaces involved.

2. Replacement with Silver (Amalgam) Filling

Amalgam may be used for posterior teeth where aesthetics are not a priority.

Typical cost: ₩50,000 – ₩150,000 per surface

Silver fillings are durable and less expensive, but they are less natural-looking.

3. Replacement with Porcelain/Ceramic Inlays & Onlays

For larger or structurally compromised areas, porcelain or ceramic inlays/onlays offer stronger and more durable restoration with natural aesthetics.

Typical cost: ₩500,000 – ₩1,800,000 per tooth

Porcelain inlays/onlays are custom-made in a laboratory and bonded to the tooth for a precise fit.

4. Replacement with Dental Crown

When decay or damage is extensive, replacing the filling with a crown may be recommended. Crowns cover the entire visible portion of the tooth.

Typical cost: ₩800,000 – ₩2,000,000 per tooth

Prices vary by material—ceramic, zirconia, or metal-ceramic—and clinic.

5. Root Canal Therapy + Restoration

If decay has reached the pulp (nerve), root canal therapy may be required before placing a new restoration.

Typical costs:

• Root canal therapy: ₩200,000 – ₩600,000 per canal
• Replacement restoration: Depends on the final choice (filling, inlay, or crown)

Factors That Influence Replacement Cost

Costs can vary based on:

• Size and location of the old filling: Larger restorations require more time and material.
• Material selected for replacement: Premium materials cost more.
• Clinic location and technology: Advanced digital scanning and aesthetic planning may increase fees.
• Dentist expertise: Specialists in restorative dentistry may charge higher rates.
• Need for additional procedures: Gum treatment, core build-up, or temporary restorations can add cost.

Insurance Coverage in Korea

Basic filling replacements for medical necessity are generally partially covered by Korean National Health Insurance. Composite and amalgam filling costs may be subsidized when decay is treated for functional reasons.

Premium or cosmetic replacements—such as ceramic inlays/onlays and crowns—are typically not covered and are paid out of pocket.

Patients should confirm coverage with both the dental clinic and insurance provider before treatment.

Choosing the Right Replacement Option

• Minor deterioration or aesthetic need: Composite resin
• Durability priority without aesthetic concern: Amalgam
• Moderate damage with functional and aesthetic goals: Porcelain/ceramic inlay or onlay
• Extensive damage or weakened tooth: Dental crown
• Pulp involvement: Root canal therapy + restoration

A personalized clinical exam is essential to determining the best choice for function, longevity, and appearance.

Conclusion

Replacing old dental fillings in Korea ranges from ₩50,000 to ₩150,000 per surface for basic material replacements to ₩500,000 – ₩2,000,000 or more for premium restorations like porcelain inlays or crowns. Partial insurance coverage may apply for medically necessary procedures, while cosmetic or premium treatments are typically out of pocket. It’s best to consult with a trusted dentist to discuss your options, expected costs, and the most appropriate treatment plan for your dental health and smile goals.