What to Do if Your Filling Causes You Pain

Sep 1, 2026

Young man holding his cheek in pain, needing dental fillings from Cascadia Family Dental in Bend, OR.

Dental fillings are a common and valuable part of restoration dentistry. They help repair teeth damaged by decay, restoring their function and preventing further problems. But what happens when a dental filling, meant to alleviate pain, actually causes it? It's a frustrating situation, and understanding why it happens and what to do about it is key to maintaining good oral care.

Why Does My Filling Hurt?

Several reasons could explain why your dental filling is causing you discomfort. It's important to remember that some sensitivity immediately after getting a filling is normal. This usually subsides within a few days to a week. However, persistent or worsening pain warrants attention.

  • Sensitivity to Temperature: Many people experience sensitivity to hot or cold foods and drinks after receiving a dental filling. This occurs because the dental filling material is close to the nerve of the tooth. This sensitivity usually decreases over time as the tooth adjusts.
  • Bite Problems: A filling that's slightly too high can interfere with your bite, causing pressure and pain. Even a tiny difference in height can throw off your entire bite, leading to jaw pain, headaches, and tooth sensitivity.
  • Galvanic Shock: This happens when different metals in your mouth (like a new dental filling and an existing crown) create a small electrical current. This can cause a sharp, sudden pain, especially when the metals touch.
  • Tooth Decay: While a dental filling is meant to fix decay, new decay can sometimes develop around the edges of the dental filling. This is often due to inadequate oral care. If this occurs, bacteria can infiltrate the area, leading to pain and further damage.
  • Pulpitis: This is inflammation of the pulp, the inner part of the tooth that contains nerves and blood vessels. Deep cavities or extensive dental work can sometimes irritate the pulp, leading to pulpitis. This can cause intense pain and may require further treatment.

What Should I Do?

If you're experiencing pain after getting a dental filling, don't panic! Here are some steps you can take:

  1. Wait and See: If the pain is mild and only occurs with temperature changes, give it a few days to a week. Sometimes the sensitivity resolves on its own. Practice excellent oral care by brushing gently with fluoride toothpaste and flossing daily.
  2. Avoid Triggers: Identify what's causing the pain. If it's hot or cold, avoid those temperatures. If it's pressure from biting, try to chew on the other side of your mouth.
  3. Contact Your Dentist: If the pain is severe, persistent, or worsening, contact your dentist immediately. They can properly diagnose the cause of the pain and recommend the appropriate treatment. Don't delay, as ignoring the problem could lead to more serious issues.
  4. Describe Your Symptoms: When you contact your dentist, be prepared to describe your symptoms in detail. When does the pain occur? What does it feel like (sharp, dull, throbbing)? Where is the pain located? The more information you provide, the easier it will be for your dentist to diagnose the problem.
  5. Follow Your Dentist's Instructions: Your dentist may recommend adjustments to the dental filling, desensitizing treatments, or other procedures. Follow their instructions carefully to alleviate the pain and protect your tooth.

Dealing with pain from a dental filling can be frustrating, but understanding the potential causes and knowing how to respond can help you get back to a pain-free smile. Remember, good oral care and prompt attention to any dental problems are essential for maintaining your overall oral health.