How Long Do Dental Fillings Last? Lifespan, Care Tips & What to Watch For
You’re enjoying your favorite burger when something doesn’t feel quite right. You pause and realize your filling has popped out. It’s not the surprise you were hoping for, but fortunately, it’s something dentists see all the time and can take care of easily.
But what if it’s not so obvious? Maybe there’s no sudden pop, just a bit of sensitivity or a strange twinge when you chew. At Summit Dental Partners, we’re here to help you understand how long fillings usually last, what signs may mean it’s time for a replacement, and what your options might be.
What Are the Types of Dental Fillings?
Dental fillings are used to restore the area left behind after a cavity is treated. They help protect the tooth and keep your smile strong. While all fillings are made to be durable, their lifespan can depend on factors such as the material used, where the filling is located, and your everyday habits.
Here’s a look at the most common types of fillings and what to know about each one.
Silver Amalgam Fillings
Silver amalgam fillings are made from a mix of metals, including copper, zinc, tin, silver, and mercury. They’re usually used in the back teeth, where strength is more important than appearance.
Pros
- Typically lasts 9 to 21 years
- Strong and wear-resistant
- Often used for larger fillings
- Quick and easy for dentists to place
Cons
- Noticeable silver color
- Less ideal for front teeth
- Doesn’t bond to the tooth
- Can expand or contract slightly with temperature changes
- Usually not recommended for pregnant individuals, young children, or people with specific allergies or health conditions
Composite Resin Fillings
Composite resin fillings are tooth-colored and made from a blend of resin and glass or quartz. They’re commonly used in visible areas of the mouth for a more natural look.
Pros
- Matches the natural color of your tooth
- Bonds directly to the tooth surface
- Mercury-free
- Less affected by temperature changes
Cons
- May last around 5 to 10 years on average
- Can take a bit longer to place
- May cost slightly more than silver fillings
Ceramic (Porcelain) Fillings
Ceramic fillings are made from porcelain and can blend in with your natural teeth. They’re a good option for people who want a filling that’s both strong and discreet.
Pros
- Tooth-colored and stain-resistant
- Can work well for larger areas
- May last 8 to 10 years or more with good care
Cons
- Can be more brittle than composite
- Not ideal for small cavities
- Typically more expensive
- May chip with very hard or crunchy foods
Glass Ionomer Fillings
Glass ionomer fillings are often used in baby teeth or small, non-biting areas. They’re made from a blend of materials like alumina and calcium and can slowly release fluoride to help support the tooth.
Pros
- Releases fluoride over time
- Can match tooth color better than metal
- Often used for baby teeth or shallow cavities
- Quick to place
Cons
- Less durable than other filling types
- More prone to wearing down or cracking
- Best for areas with minimal chewing pressure
Gold Fillings
Gold fillings, also called inlays or onlays, are made in a dental lab using gold and other metals. While they’re less common today, some people prefer them for their durability.
Pros
- Extremely long-lasting and may last 20 years or more
- Some patients like the unique look
Cons
- Requires more than one appointment
- Doesn’t match natural tooth color
- May not be suitable for patients with metal sensitivities
- Often, the most expensive option
How Do I Know If a Filling Might Need Replacement?
While fillings are made to last, they do wear out eventually. Over time, they may crack, wear down, or no longer fit the tooth as securely.
Here are a few signs that may mean it’s time to have a filling checked:
- Sensitivity to hot, cold, or sweet foods
- Discomfort or pain when chewing
- A rough or sharp spot on the tooth
- Food is getting stuck in the same spot
- Discoloration around the filling
These symptoms don’t always mean something is wrong, but they’re worth mentioning at your next dental visit. Your dentist can check the area and let you know if anything needs to be done.
What Happens When a Filling Needs to Be Replaced?
If a filling does need to be replaced, there’s no need to worry. It’s a simple and common process that your dental team has done many times before.
Your dentist will remove the old filling and clean the area to prepare it for the new one. Then, you’ll discuss what type of filling might work best. Some people choose the same kind they had before, while others go with something different based on how it looks, feels, or holds up over time.
For example, you might switch from a silver filling to a tooth-colored one for a more natural appearance. Or you might prefer a more durable material that fits your lifestyle and budget. Your dentist will walk you through the options and help you decide what’s best for your needs.
Dental Fillings in Summit, NJ
If something feels off with a tooth, or it’s been a while since your last checkup, we’re here to help. The team at Summit Dental Partners can take a look at your filling, answer any questions, and recommend next steps if needed.
Fillings help protect your teeth and keep you comfortable when you eat, speak, and smile. If it is time to have a filling checked, schedule a visit with us in Summit, NJ. We’ll talk through your options and help you feel confident in your care.
Frequently Asked Questions About Dental Fillings
How long do dental fillings usually last?
Depending on the material and how well it’s cared for, dental fillings can last anywhere from 5 to 20 years. Your dentist can keep an eye on them during regular checkups.
Can I replace a silver filling with a tooth-colored one?
In many cases, yes. Your dentist can evaluate your existing filling and let you know if a composite or ceramic option might be right for you.
Does it hurt to replace a filling?
Most patients find filling replacement to be a quick and comfortable process. Your dentist will use a local anesthetic to help make the appointment as easy as possible.
What are the signs a filling might need to be replaced?
Signs can include sensitivity, a rough edge, pain when chewing, or food getting stuck in the same place. Your dentist can determine if anything needs to be adjusted.
Which filling material is best for me?
That depends on a few factors, like the location of the tooth, your goals, and your budget. Your dental team will help you choose what works best for your situation.