{"id":237,"date":"2026-04-20T16:05:34","date_gmt":"2026-04-20T16:05:34","guid":{"rendered":"https:\/\/www.adcdyer.com\/blog\/?p=237"},"modified":"2026-04-20T16:05:38","modified_gmt":"2026-04-20T16:05:38","slug":"dental-duration-how-long-do-fillings-usually-last","status":"publish","type":"post","link":"https:\/\/www.adcdyer.com\/blog\/2026\/04\/20\/dental-duration-how-long-do-fillings-usually-last\/","title":{"rendered":"Dental Duration: How Long Do Fillings Usually Last?"},"content":{"rendered":"
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Do you have damaged enamel or have you experienced increased sensitivity or discomfort when biting down, especially into overly hot or cold foods? If so, you might have developed tooth decay. This occurs when bacteria in your mouth erode the protective outer layer of your teeth, damaging the structure and increasing the risk of additional decay, disease, or injuries.<\/p>\n\n\n\n

Dental fillings are the standard treatment, but it\u2019s natural to have questions about this service, like how long your restoration<\/a> is likely to last. Continue reading to learn more about it so you know what to expect from the repair!<\/p>\n\n\n\n\n\n\n\n

What Are Dental Fillings Made From?<\/h2>\n\n\n\n

Historically, dental fillings were made from amalgam mixtures that contained powdered metallic alloys, like silver, tin, copper, or zinc, mixed with about 40% to 50% liquid mercury as a binding agent. Although durable, these restorations can also cause allergies and expand and contract with temperature changes, which can further erode enamel.<\/p>\n\n\n\n

Today, most dentists fill cavities with biocompatible, FDA-approved composite resin. This color-matched, putty-like material contains microscopic pieces of acrylic mixed with powdered glass, silica, or quartz, and is applied directly to your enamel in layers to rebuild damaged sections. Then it\u2019s hardened with a special ultraviolet curing light, so it bonds with your tooth and preserves more of its natural structure.<\/p>\n\n\n\n

How Long Do Dental Fillings Last?<\/h2>\n\n\n\n

It\u2019s normal to want to know how long your dental filling will last, but the answer can depend on your unique circumstances. For example, repairs made out of amalgam can potentially last 15 years or more if cared for correctly, though they also carry a risk of causing sensitivity, and if you have several in your mouth, can potentially become toxic due to higher mercury levels.<\/p>\n\n\n\n

Meanwhile, composite resin repairs can last 5 to 15+ years when properly cared for. Although they might not have the same inherent durability as metallic materials, they can be customized to resemble your natural enamel for beautiful results that are unlikely to cause allergies or sensitivity.<\/p>\n\n\n\n

How Can I Help Maintain My Restoration?<\/h2>\n\n\n\n

Are you curious whether there\u2019s anything you can do to help extend the lifespan of your dental filling? Thankfully, there are several proactive ways you can help maintain your recently restored smile, including:<\/p>\n\n\n\n