If you’ve ever had a cavity, you probably have a dental filling. It’s one of the most common dental procedures out there. But fillings don’t last forever. They’re a repair, not a replacement for your natural tooth.
The good news is that modern fillings are durable and reliable. But like anything else in your mouth, they experience wear and tear over time. Knowing when to replace a filling can save you from more serious problems down the road.
How Long Do Fillings Typically Last?
The lifespan of a filling depends on several factors. The material used, where the filling is located, your eating habits, and your home care routine all play a role.
On average, you can expect a filling to last anywhere from five to fifteen years. Composite resin fillings, which are tooth-colored, typically last five to ten years. Amalgam (silver) fillings are tougher and can last ten to fifteen years or more. But these are just averages. Some fillings fail sooner, and others last much longer.
Signs Your Filling Needs Attention
Your filling won’t always give you a warning before it fails. But there are signs you can watch for between checkups.
- Sensitivity to hot, cold, or sweet foods can be a clue. This might mean the filling is leaking or the tooth underneath has developed new decay.
- A sharp edge or rough spot on the filling is another sign. The filling may be wearing down or cracking.
- Pain when biting down is a red flag. This often means the filling is cracked or loose, and pressure is transferring directly to the tooth structure.
- Darkening around the edge of the filling can also indicate leakage or decay underneath.
- And if the filling feels loose or falls out completely, you know it’s time to call us.
What Happens When a Filling Fails
A failing filling isn’t just an inconvenience. It’s a risk to your tooth.
When a filling breaks down, bacteria can work their way into the gap between the filling and your tooth. That leads to new decay. If the decay reaches the pulp (the nerve center), you may need a root canal. In severe cases, the tooth might not be savable at all.
That’s why we check your fillings at every routine exam. Catching a problem early means a simple replacement instead of a more complex procedure.
What to Expect During a Filling Replacement
Replacing an old filling is a straightforward process. We’ll start by numbing the area so you’re comfortable throughout.
Next, we remove the old filling material and clean out any decay that may have formed underneath. This step is crucial for ensuring a healthy foundation for the new filling. We’ll then prepare the tooth and place the new filling material.
If your old filling was amalgam, we’ll take care to remove it safely. Then we’ll shape and polish the new filling so it feels natural and your bite is comfortable. The entire process usually takes about thirty minutes to an hour.
Choosing the Right Material
Today, you have options. Tooth-colored composite fillings are the most popular choice. They bond directly to the tooth, require less removal of healthy tooth structure, and look completely natural.
Amalgam fillings are still used in some cases. They’re incredibly strong and durable, making them a good choice for back teeth that take a lot of chewing pressure. However, they’re more noticeable and require more tooth preparation.
We’ll talk through the pros and cons with you. The best choice depends on where the tooth is, your budget, and your personal preferences.
Extending the Life of Your Fillings
You can help your fillings last longer with a few simple habits:
- Good brushing and flossing are non-negotiable. They remove the bacteria that can cause decay around the edges.
- Avoid chewing on hard things like ice, pens, or hard candy. These can crack or chip your fillings.
- If you grind your teeth at night, consider a nightguard. Grinding puts enormous pressure on your fillings and can shorten their lifespan dramatically.
- Regular checkups are your best defense. We’ll monitor your fillings and catch any issues before they become emergencies.
We’re Here to Keep Your Smile Healthy
If you have an old filling that’s giving you trouble, or if you’re just curious about its condition, we’re here to help. At Karpovich Dental, we take a careful, thorough approach to every restoration.
Contact our Timonium office today to schedule an exam. We’ll take a close look at your fillings, answer your questions, and make sure your smile stays strong for years to come.