If you're wondering about dental fillings and how long they last, you're in the right place. Dental fillings come in different materials and several factors can affect their longevity. Understanding the lifespan of dental fillings can help you maintain a healthy smile for years to come. This comprehensive guide will explore the various factors influencing the durability of dental fillings, what kinds of dental fillings there are, both traditional and innovative, and provide tips to make them last longer. Let's dive in!
Lifetime of dental fillings
Dental fillings can last for different lengths of time depending on various factors. Generally, fillings can last anywhere from 5 to 15 years, but that’s not always a guarantee. However, the type of filling material significantly impacts this range. For instance:
Amalgam (silver) fillings: up to 15 years
Composite (plastic) fillings: up to 7 years
Gold fillings: up to 20 years
Glass ionomer fillings: up to 5 years
Temporary fillings: Less than 6 months
These are average lifespans and can vary based on several factors, including your oral hygiene practices, eating habits and whether you grind your teeth. We’ll go more in-depth about the materials and factors that influence dental filling longevity.
Types of dental fillings
Different types of dental fillings come with their own sets of pros and cons. Understanding the scientific composition and properties of various dental filling materials can provide valuable insight into their functionality and longevity.
Here’s a breakdown:
Gold fillings
Gold fillings are composed of a combination of gold, copper and other metals, making them durable and biocompatible.
Amalgam fillings
Amalgam fillings, commonly known as silver fillings, are composed of a mixture of metals including silver, mercury, tin, and copper. The presence of mercury makes the material pliable, allowing it to fill the cavity precisely before it hardens.
Composite fillings
Composite fillings blend well with natural teeth, making them a popular choice for visible areas. They bond directly to the tooth structure, offering good support. Composite fillings are made from a resin-based material combined with powdered glass quartz, silica or other ceramic particles. This composition allows the material to mimic the natural color of teeth, providing an aesthetically pleasing result. However, they are less durable than amalgam fillings and may need to be replaced more frequently.
Glass ionomer fillings
Glass ionomer fillings consist of a mixture of acrylic and a specific type of glass that releases fluoride. These fillings can be used for fillings below the gum line and for children's teeth. They release fluoride which can help protect the tooth from further decay. They are less durable and last less than 5 years.
Temporary fillings
Temporary fillings can be used when it's not possible to complete a dental restoration in a single visit or when a tooth needs to settle down before a permanent solution is applied. These fillings are made from materials designed to last for a few weeks to a few months. They provide protection for the tooth while preventing contamination from saliva and food particles. Temporary fillings are ideal for situations like emergency dental work, following a root canal procedure, or when waiting for a more durable, long-term restoration to be made.
Innovations in dental filling technology
The field of dental materials is experiencing exciting and ongoing evolution, with advancements constantly emerging. These developments have significantly impacted both the practice and outcomes of dental care. Recent breakthroughs include:
Bioactive fillings
These fillings are designed to work with your natural tooth structure. They can promote remineralization and effectively reduce the gap between the filling and the tooth, lowering the risk of secondary dental caries. They are similar to glass ionomer fillings as they release calcium, phosphate and fluoride ions to help remineralize teeth.
Nanocomposite fillings
Nano fillings integrate nanoparticles into composite resins, making them both strong and aesthetic. These advanced fillings offer enhanced strength and superior wear resistance, all while achieving a look that closely mimics natural teeth. This breakthrough in dental materials technology allows for restorations that are not only more durable but also more visually appealing, blending seamlessly with the surrounding tooth structure.
*Note that these technologies are still relatively new, and their long-term effectiveness is not fully known.
How much do dental fillings cost?
The cost of dental fillings can vary based on the material and the extent of the procedure. A dental filling at Aspen Dental costs, on average, $289 per filling.¹ Additionally, the number of cavities, any insurance coverage, the material that’s used and the office location you choose will impact the full cost of dental fillings. Find out more about the cost.
¹Price displayed is average price paid by patients nationwide for selected service.
How to make dental fillings last longer?
While material composition plays a role in the longevity of dental fillings, several other factors influence the lifespan of dental fillings. Let’s explore ways you can make your dental fillings last longer:
Good oral hygiene
Good oral hygiene practices, including regular brushing, flossing and the use of fluoride mouthwash, can significantly extend the life of dental fillings. Ensuring food particles and plaque do not accumulate around the filling reduces the risk of secondary decay.
Healthy dietary habits
Consumption of sugary, sticky or acidic foods can accelerate wear and tear on dental fillings. Alcohol and tobacco also harm oral and overall health, so try to limit your intake. Staying hydrated and limiting such foods can help maintain the integrity of the fillings.
Regular dental check-ups
Frequent dental visits allow for early detection of any issues with fillings, enabling timely repairs or replacements. Your dental hygienist can also professionally clean areas that are difficult to reach with routine brushing and flossing.
How to know that your filling needs to be replaced?
What happens if you need a replacement and how would you know? It's important to recognize when your dental filling needs to be replaced. Here are some signs to watch out for:
Cracks or chips in the filling
Discoloration of the filling
Pain when biting or chewing
Rough or sharp edges on the filling
If you notice any of these signs, it's time to schedule an appointment with your dentist at Aspen Dental to protect your tooth from any further damage or sensitivity.
How often should fillings be replaced?
Fillings should be replaced when they show signs of wear, damage or tooth decay underneath. Typically, the frequency is determined heavily by your oral hygiene habits and dietary habits. It’s best to consult with your dentist to determine the right time to replace your dental fillings.
What are the alternatives to tooth fillings?
For larger cavities or significantly damaged teeth, a crown or a veneer that covers the entire tooth may be necessary. In these cases, a portion of the enamel may need to be removed or the tooth may need to be shaped to accommodate the crown or veneer. Learn more about veneers and dental crowns.
Healthy smiles start here
Dental filling materials have come a long way, offering a range of options to cater to different needs and preferences. Understanding the science behind these materials and the factors that affect their longevity can empower patients to make informed decisions and maintain their dental health optimally. Regular dental care and a proactive approach to oral hygiene can ensure that your fillings perform effectively for years to come.
Ready to make an informed choice about your dental fillings? Schedule an appointment today for a consultation and personalized recommendations.
For further information on dental fillings, visit Aspen Dental.