Why Do My Teeth Hurt After Fillings? Here Are 3 Reasons

Dental fillings are meant to restore and protect your teeth, but what happens when you experience pain afterward? If you’ve ever thought, “Why do my teeth hurt after fillings?” you’re not alone. While some post-filling sensitivity is normal, persistent discomfort might point to lesser-known causes.

Before you panic, here are three possible reasons behind your lingering toothache—and how a dentist in Markham can help you find relief.

1. Referred pain: When the problem isn’t where you think

Sometimes, pain from one tooth is felt in another, making it tricky to pinpoint the real issue. This is called referred pain. If you notice discomfort in a tooth that wasn’t treated, your nerves might be playing tricks on you.

How does this happen?

Your teeth share nerve pathways, so sensations can travel, causing pain in unexpected places. After a filling, nearby teeth may become temporarily sensitive as your mouth adjusts.

What can you do?

• Give it a few days—most referred pain resolves on its own.
• Avoid extremely hot or cold foods, which can aggravate sensitive nerves.
• If the pain persists, visit a Markham dentist to rule out other causes.

2. Cracked or high fillings: When precision matters

A dental filling should fit seamlessly into your bite. If it’s even slightly too high or develops a crack, it can lead to pain and discomfort.

Signs of a high or cracked filling:

• Pain when biting down
• Sensitivity to pressure
• A feeling that your teeth don’t align properly

Why does this happen?

• A filling that’s too high puts extra pressure on the tooth.
• A tiny crack can expose sensitive inner layers, triggering pain.

What’s the fix?

A quick adjustment by your Markham dentist can solve the issue. Replacing the filling may be necessary to prevent further damage if the filling is cracked.

3. Allergic reaction to filling materials

Though rare, some people are allergic to dental materials, particularly amalgam (silver fillings). If your mouth feels irritated or swollen or you experience a persistent burning sensation, an allergic response might be the culprit.

What are the symptoms?

• Persistent gum irritation or rash near the filling
• Unexplained discomfort even after bite adjustments
• Sensitivity that doesn’t subside over time

What should you do?

If you suspect an allergic reaction, consult a dentist in Markham. They may recommend replacing the filling with a hypoallergenic material, like composite resin or ceramic.

Other Possible Causes of Post-filling Pain

While the above reasons are less commonly discussed, other factors can contribute to post-filling discomfort:

• Nerve irritation: Deep cavities can affect the tooth’s nerve, causing temporary sensitivity.
• Bite misalignment: Even slight adjustments can take time for your jaw to adapt.
• Tooth decay beneath the filling: If bacteria remained before the filling was placed, it could lead to new decay and pain.

If your discomfort persists beyond two weeks, it’s time to visit a Markham dentist for a thorough evaluation.

How long should pain after a filling last?

Mild sensitivity is common for a few days, but persistent pain is not. Here’s a general timeline:

• First few hours: Mild discomfort as anesthesia wears off
• First few days: Sensitivity to hot, cold, and pressure
• Beyond two weeks: If pain continues, see your dentist

When should you call a Markham dentist?

Don’t ignore ongoing pain! If you experience any of the following, schedule an appointment:

• Pain that worsens over time
• Sharp pain when biting or chewing
• Swelling or gum irritation near the filling
• Sensitivity lasting more than two weeks

Your Markham dentist can assess whether your filling needs an adjustment, replacement, or additional treatment.

What if my dental bridge needs attention?

If you’ve had a filling and also wear a dental bridge, ensuring both fit properly is essential. An ill-fitting bridge can cause uneven pressure on your filled tooth, leading to discomfort. Sometimes, a dental bridge can be removed and re-cemented to restore comfort and function.

Final Thoughts: Don’t Ignore Post-filling Pain

If you’ve been wondering, “Why do my teeth hurt after fillings?” there are multiple potential causes. Solutions are available for referring pain, high fillings, and even rare allergic reactions. Consulting a dentist in Markham ensures you get the right diagnosis and relief.

Don’t let post-filling pain linger—schedule an appointment with your Markham dentist today and restore your comfort and peace of mind.