Choosing the Best Dental Filling Material: A Complete Guide

When a cavity needs filling, the material you choose affects durability, aesthetics, cost, and biocompatibility. Here’s a breakdown of five common options.

1. Amalgam (Silver)

• Composition: Mercury, silver, tin, copper.
• Pros: 10–15+ year durability; low cost; withstands heavy chewing.
• Cons: Visible; mercury concerns (though FDA/ADA deem safe for most); requires more tooth removal.

2. Composite (White/Tooth-Colored)

• Composition: Resin + glass/quartz filler.
• Pros: Matches tooth shade; bonds to tooth (conservative prep); less thermal sensitivity.
• Cons: 5–10 year lifespan; higher cost; technique-sensitive placement.

3. Glass Ionomer

• Composition: Glass + polyacrylic acid.
• Pros: Releases fluoride; tooth-colored; good for root surfaces and children.
• Cons: Weaker; wears faster; not for high-stress areas.

4. Gold

• Pros: 15–20+ years; biocompatible; kind to opposing teeth.
• Cons: Most expensive; visible; requires 2+ visits.

5. Porcelain (Ceramic)

• Pros: Excellent aesthetics; stain-resistant; durable (10–15 years).
• Cons: Costly; may need 2 visits; can wear opposing enamel if not polished well.

Choosing Factors

• Cavity location and size
• Aesthetic priorities
• Budget and insurance coverage
• Dentist’s clinical recommendation
• Allergies/sensitivities

Discuss trade-offs with your dentist to match the material to your specific tooth and lifestyle.