Cavity Treatment Costs: Which 'Filling' Type is Right for Me? A Comprehensive Guide to Materials, Pros, Cons, and Prices

Cavities are a dental disease almost everyone experiences at some point. They are an unwelcome guest that inevitably appears if you enjoy sweet foods or neglect oral hygiene. While cavities may not cause pain in their early stages, if left untreated, they can deepen, damage nerves, and eventually lead to tooth extraction. Therefore, it's crucial to get cavity treatment without delay. However, once you decide to get treatment, you're often faced with questions like, 'What material should I use for the filling?' and 'How much will cavity treatment cost?'

Moreover, cavity treatment is not just about fixing a painful tooth; it's a significant investment that directly impacts your future oral health and quality of life. The various types of cavity 'fillings' each have different pros, cons, and costs, meaning the optimal choice can vary depending on the individual patient's cavity condition, tooth location, aesthetic preferences, and budget.

In this article, as a dental professional content writer with 10 years of experience, I aim to provide detailed information on the characteristics, pros, and cons of the most commonly used 'filling' materials for cavity treatment, as well as their approximate costs. This information will help you resolve your questions about cavity treatment and make an informed decision.

a white substance in a glass
Photo by Ozkan Guner on Unsplash

Complete Analysis of Cavity Treatment 'Filling' Types, Characteristics, and Costs

In cavity treatment, 'filling' is the process of removing the damaged part caused by the cavity and filling that space with artificial material to restore the tooth's function and form. The choice of material significantly affects aesthetics, strength, lifespan, and most importantly, the cavity treatment cost. Let's now examine the representative cavity 'filling' materials one by one.

1. Amalgam: An Economical Choice

Amalgam is a material made by mixing metals such as silver, tin, copper, and zinc with mercury. It is a traditional cavity treatment material that has been used for a very long time, with the significant advantage of being covered by national health insurance, making it the least burdensome in terms of cavity treatment costs.

  • Pros:
    • Excellent Affordability: Cavity treatment costs are very low due to national health insurance coverage.
    • Strong Durability and Strength: Resistant to pressure and sturdy, making it suitable for areas with strong chewing forces, such as molars.
    • Easy Procedure: Can be filled relatively simply.
  • Cons:
    • Lack of Aesthetics: Since it's a silver metal material, it's distinctly different from tooth color, making it aesthetically unpleasing. It is especially not often used for front teeth or visible areas.
    • Significant Tooth Removal: Due to the nature of the material, a relatively large amount of tooth structure must be removed.
    • Mercury Controversy: Although there was a past controversy regarding mercury's harmfulness, it is now generally accepted in academia that amalgam currently used is harmless to the human body.
    • Metal Allergy: It may be unsuitable for patients with rare metal allergies.
    • Causes Tooth Discoloration: Over time, it can cause the surrounding teeth to darken.
  • Approximate Cavity Treatment Cost: 10,000-20,000 KRW range (based on national health insurance coverage, varies by dental clinic)

2. GI (Glass Ionomer): The Advantage of Fluoride Release

Glass ionomer is a material composed of glass powder and organic acid, which is similar in color to teeth, offering better aesthetics than amalgam. A significant feature is its continuous release of fluoride, which helps prevent secondary cavities.

  • Pros:
    • Fluoride Release: Helps inhibit cavity recurrence.
    • Similar to Tooth Color: Offers better aesthetics than amalgam.
    • Biocompatible: Has good affinity with tooth tissue.
    • National Health Insurance Coverage (Partial): National health insurance may apply to specific areas (e.g., primary teeth in children, cavities near the gums), which can reduce the burden of cavity treatment costs.
  • Cons:
    • Weak Strength: Weaker in strength and more prone to wear compared to resin or amalgam.
    • Aesthetic Limitations: Not as natural-looking as resin.
    • Water Absorption: Moisture management is important initially, and it can be susceptible to moisture.
  • Approximate Cavity Treatment Cost: 20,000-50,000 KRW range (varies depending on national health insurance coverage/non-coverage, and by dental clinic)

3. Resin: Aesthetics and Functionality Simultaneously

Resin is a material with excellent aesthetics, as its color is almost identical to natural teeth. It is filled by directly bonding to the tooth, with the advantage of requiring less tooth removal. It is one of the most commonly used cavity 'filling' materials.

  • Pros:
    • Excellent Aesthetics: The color is almost the same as natural teeth, so the treated area is not noticeable.
    • Minimal Tooth Removal: Only the carious part can be selectively removed and treated, which is advantageous for preserving healthy tooth structure.
    • Excellent Bonding Strength: Strongly bonds to the tooth, reducing the risk of secondary cavities.
    • Applicable to Various Areas: Widely used from front teeth to molars.
  • Cons:
    • Non-Insured Material: Since it is not covered by national health insurance, cavity treatment costs are higher than for amalgam or GI.
    • Potential for Discoloration: It can discolor over time due to highly pigmented foods like coffee, tea, and wine.
    • Strength
  • Approximate Cavity Treatment Cost: 100,000-250,000 KRW range (per tooth, varies by cavity size and dental clinic)