Toothy Timeline: How Long Do Dental Fillings Last?

Dental fillings are the tried-and-true method of treating cavities, and help preserve the remaining structure of your tooth while allowing you to continue using it to eat, speak, and smile normally.

But it’s normal to have questions about this standard procedure and what results to expect. For instance, many patients wonder how long they can expect their dental repair to last. If you’re wondering how long dental fillings typically last, continue reading to learn more about it!

What Are Dental Fillings Made From?

Dental fillings can be made from different materials, which can affect their longevity. For instance, in the past, most providers relied on amalgam restorations to treat tooth decay. These “silver fillings” typically contained a mixture of powdered metallic alloys, such as silver, tin, and copper, mixed with about 50% liquid mercury as a bonding agent. These materials are strong enough to withstand the daily pressures of biting and chewing, but can also be problematic. Some patients develop metal allergies or increased sensitivity, especially to overly hot or cold temperatures.

Today, most dentists have upgraded to using tooth-colored, biocompatible materials that bond directly with your enamel. Not only does this help preserve more of the damaged tooth’s natural structure, but it also enhances its appearance for beautiful, seamless results.

How Long Do Dental Fillings Last?

The different materials used to create your filling can potentially affect its lifespan. For example, metal restorations can last 15+ years if cared for correctly, and some patients worry that tooth-colored versions are less durable.

However, once the color-matched composite resin is hardened in place, it can often last just as long as silver fillings. You can expect these repairs to remain in good condition for 5 to 15+ years if they’re cared for properly.

How Can I Help Maintain My Restoration?

Whether you have an amalgam or tooth-colored filling, there are several things you can do to help maintain it, including:

• Establishing a routine. Brushing and flossing twice daily removes plaque and bacteria that contribute to tooth decay.
• Protect your teeth. Wearing a nightguard can prevent damage from teeth grinding, and custom-fitted mouthguards can prevent the repair from being injured or dislodged during athletic events.
• Schedule routine checkups. Seeing your dentist every six months for a checkup and cleaning allows them to monitor your dental health and treat areas of concern before they become more problematic.

If you’re unsure of the types of materials your dentist uses to fix cavities or how long your filling might last, you can learn more by contacting their office!

Meet the Author

Dr. Xinxing Liu is passionate about helping people improve their lives by enhancing their dental health. She earned her dental degree from the Nova Southeastern University College of Dental Medicine in Ft. Lauderdale, FL, and today, she offers a comprehensive menu of services, including tooth-colored dental fillings, to meet the unique needs of people of all ages. If you’re concerned about cavities, you can request an appointment on the website or by calling (469) 210-7223.