Need a cavity filled and not sure which type of filling to get? You’re not alone. One of the most common questions we hear at Fallowfield Dental is about composite fillings vs. amalgam fillings. Both are used to restore teeth and stop cavities from getting worse, but they look and feel very different.
In short, if you’re looking for a filling that blends in with your natural teeth, composite resin fillings are the go-to for many people. But if you’re more focused on durability, especially in back teeth, amalgam fillings (also known as silver fillings) may still be a solid option.
We’ll walk you through both types, talk about pros and cons, and help you feel confident in your choice. And if you’re covered under the Canadian Dental Care Plan (CDCP), note that we’re a CDCP dentist in Ottawa and can help you explore your coverage options.
What Are Composite Fillings?
Composite fillings are made with composite resin material, a tooth-colored blend that looks just like your natural tooth structure. Dentists apply it in layers, harden it with a special light, and shape it to match your bite.
Because of their natural appearance, composite resin fillings are a popular choice for front teeth and other visible areas. They bond well to the tooth structure, which means less drilling and more of your healthy tooth structure stays intact. This makes them great for smaller restorations and people with dental anxiety who prefer a quicker fix.
Composite is often used for direct restorations, meaning the filling is done in one visit without needing a dental lab. They’re also useful for temporary fillings in some situations.
What Are Amalgam Fillings?
Amalgam fillings, also called silver amalgam fillings, are made from a mix of metals like silver, tin, copper, and mercury. Amalgam restorations have been around for decades and are known for their strength, especially for back teeth where chewing pressure is highest.
Metal amalgam fillings tend to last a long time and are less sensitive to moisture during placement, which can make them helpful in certain restorative dental treatments. Some patients also choose gold fillings or cast gold fillings, though these are less common due to cost.
While silver amalgam doesn’t match your natural teeth, many dentists still consider it safe and effective. According to the American Dental Association, modern dental amalgam is a tested and approved filling material for certain cases.
Composite and Amalgam Fillings: Key Differences
Here’s a side-by-side look at amalgam and composite fillings:
- Appearance: Composite looks more like your real tooth; amalgam looks silver or gray.
- Durability: Amalgam-type fillings often last longer, especially on molars.
- Cost: Amalgam is usually more cost-effective, but more dental plans now cover composite fillings too.
- Placement: Composite is great for smaller restorations and minimal drilling. Amalgam can hold up well for medium-sized cavities and filled teeth under more pressure.
Some people worry about mercury exposure in amalgam, but research hasn’t proven a link to serious health issues. If you have concerns, we’re always happy to talk about other filling materials, including porcelain fillings or resin composites.
Choosing the Right Filling Type
When you choose Fallowfield Dental, we’ll take the time to talk about your treatment options. We’ll look at the location of the cavity, your oral health, and your dental insurance coverage. Some plans now cover composite and amalgam fillings, so you don’t have to compromise.
If you have deep decay, recurrent decay, or signs of tooth infections, we might recommend a different restorative material or even indirect fillings, which are made outside the mouth and placed during an extra visit. It all depends on the tooth and what it needs.
Good news: With good oral hygiene and regular checkups, both composite and amalgam fillings can last for years. Just try to limit sweet foods, brush and floss daily, and don’t let food particles hang out too long around your filled teeth.
FAQs
Which filling is better, composite or amalgam?
It depends on where the filling is and what you want. Composite is great for natural-looking results, especially in visible teeth. Amalgam is often stronger and may last longer on back teeth.
What is the healthiest tooth filling?
Composite resin is often seen as the healthiest option because it bonds well and requires less drilling. But amalgam is still considered safe by the American Dental Association.
Which fillings last longest?
Silver amalgam fillings can last 10–15 years or more. Composite fillings usually last 5–10 years, though with good care, they can last longer.
Do most dentists use composite fillings?
Yes! Many dentists now use composite resin fillings for their natural appearance and tooth-friendly application, especially in front teeth and areas that show when you smile.
Not Sure Which Filling to Choose? Let’s Chat
Want to talk about the best filling type for your smile? Our friendly team at Fallowfield Dental in Ottawa is here to help. We’ll walk you through your options, explain your dental insurance cover, and make the process easy so you can feel good about your care.