Most people aren’t satisfied with the appearance of their teeth. Over the years, once-pearly whites can yellow or develop unwanted stains. These issues often stem from avoidable factors. With a few lifestyle changes and our clinic’s effective treatments, you can say goodbye to discolored teeth!
In this article, we’ll answer your top questions: What is an amalgam filling and why is it used? Is it harmful? We’ll explain what amalgam fillings are, their pros and cons, and exactly how they’re placed. Ready? Let’s get started!
What Is an Amalgam Filling?
An amalgam filling is a composite metal restoration used to fill cavities and prevent decay. It’s commonly chosen to treat problems like tooth decay, fractures, and tooth loss.
Is Amalgam Safe or Harmful?
Also known as a “silver filling,” amalgam is placed on molars and premolars where chewing forces are greatest. Its durability, low cost compared to other fillings, and quick placement make it a top choice.
But are amalgam fillings safe? Heavy metals have been shown to affect nerves—potentially causing irritability, sleep disturbances, or other health issues—but no definitive link has proven that amalgam fillings cause these problems. Over time, minute amounts of mercury can be released and accumulate in the body, yet current evidence does not demonstrate significant health risks at these low exposure levels.
Why Are Amalgam Fillings Used?
Amalgam is ideal for large cavities in the back teeth and hard-to-reach areas because of its strength. It can withstand the high chewing pressures those teeth endure.
How Is an Amalgam Filling Placed?
If your dentist has recommended an amalgam filling and you’re new to the procedure, here’s what to expect:
First Stage: The decayed area is cleaned—your dentist drills a small access hole to remove damaged enamel. Second Stage: The cavity is disinfected, then packed with freshly mixed, malleable amalgam. Pressure is applied to ensure a tight seal. Final Stage: Once the space is fully filled, a protective varnish is applied, and the surface is smoothed and polished. You’ll be able to use your new filling immediately.
Also see: How to Recognize a Failed Root Canal and Its Consequences
Advantages and Disadvantages of Amalgam Fillings
Amalgam is one of the most frequently used filling materials due to its long lifespan, ease of placement, and high durability. Over half of patients choose amalgam for these benefits.
However, its popularity has declined somewhat because of drawbacks: the silver color can darken over time, and in some patients it may increase tooth sensitivity.
What Are the Risks of Amalgam Fillings?
Amalgam relies heavily on mercury. During chewing, wear and pressure can release small amounts of this heavy metal. In susceptible individuals, symptoms such as mercury poisoning or infection could theoretically occur.
How Long Do Amalgam Fillings Last?
Amalgam fillings are exceptionally durable, lasting on average 10–15 years.
What Materials Are in Amalgam Fillings?
Amalgam is a blend of mercury and other metals (tin, copper, and silver).
What Are the Symptoms of Amalgam Poisoning?
If you have amalgam fillings, small amounts of mercury are released each time you chew—especially when consuming hot items like coffee or soup. While most people experience no issues, some may show signs of toxicity, including:
- Difficulty concentrating, muscle aches
- Insomnia
- Headaches
- Kidney problems
- Tremors
Amalgam Removal
A qualified dentist can remove amalgam fillings quickly. After removal, you may request a replacement filling made of a durable, non-toxic material. Your dentist will guide you toward the best alternative.
