Jaw Pain After Cavity Filling: Is It Normal?

By Gary Little

Updated On

Getting a cavity filled is a common dental procedure, but that doesn’t mean it’s entirely without discomfort. While most people sail through the experience with minimal issues, some may experience jaw pain after a cavity filling. This can be concerning, especially if you’re unsure whether it’s a normal side effect or a sign of something more serious. This article will explore the potential causes of jaw pain after a cavity filling, what to expect during the recovery process, and when you should seek professional help from your dentist.

What To Expect After A Filling

After receiving a cavity filling, it’s normal to experience some degree of discomfort or sensitivity. Your dentist has, after all, been working on a sensitive area of your mouth, and the procedure itself can cause mild inflammation and tenderness.

Jaw Pain Cavity Filling

Here’s what you can typically expect in the days following a cavity filling:

  1. Tooth Sensitivity: It’s common to experience sensitivity to hot, cold, or sweet foods and drinks for a few days or even weeks after a filling. This is because the nerve inside your tooth may be slightly irritated from the procedure.
  2. Mild Pain or Discomfort: You may feel a dull ache or mild pain around the area where the filling was placed. This is usually due to the pressure and manipulation involved in the filling process.
  3. Jaw Soreness: Depending on the location of the filled tooth and the duration of the procedure, you may experience some jaw pain or soreness after a cavity filling. This is often a result of holding your mouth open for an extended period.

These side effects are typically mild and should subside within a few days to a week as your mouth adjusts to the new filling. Over-the-counter pain medication can help manage any discomfort during this time.

Possible Causes Of Jaw Pain After A Cavity Filling

While some jaw pain after a cavity filling is normal, persistent or severe pain may indicate an underlying issue. Here are some potential causes of prolonged jaw pain following a filling:

  • High Bite: If your filling is too high or thick, it can cause your bite to be misaligned. This can lead to jaw pain, headaches, and even TMJ (temporomandibular joint) problems. Your dentist may need to adjust or reshape the filling to correct your bite.
  • Tooth Sensitivity: In some cases, the nerve inside your tooth may become irritated or inflamed due to the filling procedure. This can cause lingering sensitivity and jaw pain, especially when chewing or biting down.
  • Infection: If bacteria were present during the filling process, it could lead to an infection in the treated tooth or surrounding area. This can cause severe pain, swelling, and even fever.
  • Muscle Strain: Holding your mouth open for an extended period during the filling procedure can cause muscle strain or spasms in your jaw muscles, leading to jaw pain and stiffness.
  • Allergic Reaction: While rare, some people may experience an allergic reaction to the materials used in dental fillings, causing jaw pain, swelling, or other symptoms.

How to Prevent Jaw Pain After a Cavity Filling?

While some discomfort is normal, there are steps you can take to minimize jaw pain after a cavity filling:

  1. Follow Post-Operative Instructions: Your dentist will provide specific instructions on caring for your mouth after the procedure. Following these guidelines can help prevent complications and reduce discomfort.
  2. Use Cold Compresses: Applying a cold compress or ice pack to the outside of your jaw can help reduce inflammation and alleviate pain and swelling.
  3. Stick to Soft Foods: Avoid hard, crunchy, or chewy foods that require excessive chewing for a few days after the filling. Opt for soft, easy-to-eat items to minimize jaw strain.
  4. Practice Jaw Exercises: Gently stretching and massaging your jaw muscles can help relieve tension and prevent stiffness.
  5. Take Over-the-counter Pain Medication: If needed, take over-the-counter pain medication like ibuprofen or acetaminophen to manage any discomfort or inflammation.

When To See A Dentist?

In most cases, jaw pain after a cavity filling should subside within a week or so. However, if you experience any of the following, it’s essential to contact your dentist for further evaluation:

  • Severe, persistent pain that doesn’t improve with time or medication.
  • Swelling or tenderness in the jaw or surrounding area that worsens or doesn’t subside.
  • Fever or other signs of infection, such as pus or foul taste in your mouth.
  • Difficulty opening or closing your mouth or chewing properly.
  • Persistent headaches or ear pain.

These symptoms could indicate a more serious issue, such as an infected filling, a high bite, or a problem with the dental work itself. Your dentist can examine the area, make any necessary adjustments, and provide appropriate treatment to alleviate your jaw pain and prevent further complications.

Also Read: How To Deal With Pressure Pain On Root Canal Tooth?


Jaw pain after a cavity filling is a common occurrence, and mild discomfort is typically nothing to worry about. However, if the pain persists or worsens, it’s essential to seek professional help from your dentist. By understanding what to expect, taking preventive measures, and being aware of potential red flags, you can ensure a smooth recovery and alleviate any lingering jaw pain or discomfort after your cavity-filling procedure.

Frequently Asked Questions

How long should my jaw hurt after a filling?

Some jaw soreness and discomfort for a few days after a filling is normal. However, if jaw pain persists for more than a week, you should contact your dentist.

Is it normal for a cavity to cause jaw pain?

No, a cavity itself typically doesn’t cause jaw pain. However, the procedure to fill the cavity can lead to temporary jaw soreness or discomfort.

Can I brush my teeth after a filling?

Yes, you can brush your teeth after a filling, but be gentle around the treated area for the first few days.

Can jaw pain mean a root canal?

Persistent, severe jaw pain after a filling could be a sign that a root canal is needed, especially if accompanied by other symptoms like swelling or fever.

Why does my jaw hurt 3 days after a filling?

Jaw pain 3 days after a filling is still considered normal as your mouth adjusts to the new dental work. However, if pain worsens or persists beyond a week, contact your dentist.

Join the conversation