This comparison helps patients understand the key differences when evaluating composite vs amalgam fillings. All information is for educational purposes — your specific clinical situation should be discussed with a qualified dental provider.
| Factor | Composite Resin | Dental Amalgam |
|---|---|---|
| Contains mercury | No | Yes (~50% by weight) |
| Tooth-colored appearance | Yes | No (silver/dark) |
| Bond to tooth structure | Bonds directly | Does not bond; mechanically retained |
| Durability (back teeth) | Good; shorter lifespan in high-stress areas | Excellent long-term durability |
| Typical lifespan | 7–12 years | 10–15+ years |
| Placement complexity | Higher; moisture-sensitive | Easier in difficult conditions |
| Average cost per filling | Higher | Lower |
| Insurance coverage | Often covered up to amalgam rate | Usually covered |
⚠ Important
No comparison table can account for your individual clinical situation. Use this as a starting point for your conversation with your dentist, not as a substitute for it.Key Takeaways
- There is no single "right answer" — the best choice depends on your health history, clinical situation, budget, and values
- Ask your dentist to explain the rationale for their specific recommendation in your case
- Cost and insurance differences can be significant and should factor into your decision
- The evidence base for different approaches varies — ask about the research behind recommendations