How Long Do White Fillings Last? A Comprehensive Guide to Modern Cavity Treatment
Tooth decay is one of the most common dental issues affecting people across the globe. In fact, studies suggest that over 90% of adults will experience at least one cavity during their lifetime. Fortunately, dental technology has advanced significantly over the last decade, offering a range of effective and aesthetically pleasing treatment options—including white fillings.
If you’re dealing with a cavity and exploring your options, you may be wondering just how long white fillings last and whether they’re the right choice for you. In this blog post, we’ll take a closer look at the different types of white fillings, their average lifespan, and how to care for them properly.
White fillings, also known as tooth-colored or composite fillings, are designed to restore teeth affected by decay while maintaining a natural appearance. Unlike traditional metal fillings, white fillings are made from materials that can closely match the color and texture of your natural teeth—making them a popular choice for both front and back teeth.
There are several types of white fillings available today, each with its own benefits, applications, and longevity.
Composite fillings are made from a durable plastic resin that bonds directly to the tooth. This allows dentists to fill cavities with minimal removal of healthy tooth structure. Composite fillings are ideal for smaller to medium-sized cavities and can be matched precisely to the shade of your existing teeth.
Lifespan: Composite fillings generally last between 5 to 12 years, depending on where they’re placed, your oral hygiene, and your eating habits.
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Porcelain fillings, sometimes referred to as inlays or onlays, are crafted in a dental laboratory using high-quality ceramic materials. These fillings are custom-made to fit the cavity and are then bonded to the tooth during a second appointment.
Lifespan: With proper care, porcelain fillings can last 10 to 20 years—or even longer.
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Glass ionomer fillings are made from a mixture of acrylic and glass. They release fluoride over time, which can help prevent further decay. These fillings are typically used for cavities near the gum line or in baby teeth.
Lifespan: These fillings are less durable, typically lasting between 5 to 7 years.
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The longevity of your fillings depends largely on how well you care for them. Here are some practical tips to extend their lifespan:
White fillings offer an attractive, functional, and minimally invasive way to treat tooth decay. While they may not last as long as some metal alternatives, they strike a great balance between aesthetics, performance, and comfort—especially for those who value a natural-looking smile.
With good oral care and regular dental check-ups, most white fillings can last for many years, making them a smart long-term investment in your oral health. If you’re considering white fillings or need to replace older restorations, talk to your dentist about the best type for your needs and how to maintain them effectively.
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