近年來，銀粉的使用一直是個爭議的話題，雖然銀粉使用在牙齒的填補已超過175年了，但是其中低含量的汞曝露可能對人的健康造成影響的傳聞，使得牙醫師和病患都不願再選擇銀粉這種材料。銀粉若使用得當，可以解決很多後牙強度的問題，因此只要我們了解汞的特性，並在使用上和回收上能做好防護，就可以避免環境和生態受到破壞，又可以得到牙科的健康利益。本篇主要是針對在銀粉使用中可能產生的各種疾病及傷害的疑慮，做一些期刊文獻的比對與探討，希望能讓牙醫師對銀粉的使用上有更深入的了解。

In recent years, the use of dental amalgam has been a controversial issue. Dental amalgam has been introduced in restoration of teeth for more than 175 years, but it has been argued that even a tiny amount of
mercury may affect human health. Amalgam has been therefore out of fashion among the choices of dentists and patients. However, if we use dental amalgam properly, it can strengthen posterior tooth intensity.With
the knowledge of the characteristics of mercury, we can use it safely and recycle it. And then, we can save the environment while ensuring dental health for patients. Reviewing related literature, we attempted to, in this article, understand more about dental amalgam and relinquish the controversy over its use.