How to Manage Jaw Pain After a Filling

You’ve solved the problem of your cavity with a filling, only to end up dealing with unexpected jaw pain after your anesthesia wears off. 

What’s going on? More importantly, how can you make the pain go away?

First, be assured that jaw pain after fillings is a perfectly normal — albeit unwanted — side effect. 

In this article, we’ll explain why this symptom can show up and share tips to help you manage the discomfort until it goes away. 

Common Reasons for Jaw Pain After Fillings

Fillings treat cavities and preserve your natural teeth. The process is typically quick and straightforward, with minimal recovery time. 

Yet, many people do experience jaw discomfort or soreness shortly after the procedure, which can be worrisome. The discomfort is likely due to one of the following underlying causes of jaw pain:

Jaw Muscle Strain

One can only “say ahhh” for so long before the jaw muscles strain. Yet getting a filling can require holding the mouth open for extended periods. Jaw pain from simple muscle fatigue is normal, even when the dentist uses bite blocks or other supports. 

The jaw muscles, especially the masseter and temporalis, become strained after a prolonged mouth opening, causing:

• Tightness in the jaws
• Mild soreness when opening or closing your mouth
• Fatigue when chewing

These symptoms should go away within a day or two after the dental appointment.

TMJ Discomfort

If you already have a temporomandibular joint disorder (TMD), the procedure for filling a cavity can place additional strain on an already delicate joint. 

The temporomandibular joint (TMJ) connects the jawbone to the skull, letting you move your mouth to talk, yawn, or chew. When the joint is inflamed or sensitive, holding the mouth open for a filling can aggravate the condition.

After your procedure, you may notice TMJ-related symptoms, such as clicking or popping sounds in the jaw and pain near the ear or jaw joint. Increased stiffness or tightness and difficulty opening the mouth are also frequently experienced, even by patients without a diagnosis of TMJ disorder. 

If these symptoms don’t go away within a couple of days after your procedure or with the suggestions we’ll provide later in this article, talk to your doctor. 

Bite Changes

While the filling is settling, it can be a little high, causing “high bite.” This change in how your teeth come together creates uneven pressure when you chew or close your mouth, causing an imbalance that leads to:

• Jaw soreness or fatigue
• Tooth sensitivity with biting
• An “off” feeling that your teeth don’t feel properly aligned

Minor bite irregularities should resolve naturally as your filling settles. But if the discomfort persists, call your dentist; they can correct the bite to a more natural alignment.

Clenching and Grinding

Jaw clenching and teeth grinding from stress and physical discomfort may show up after a dental procedure. These behaviors are called bruxism, a condition that millions of people have worldwide. 

Bruxism increases jaw pain by putting pressure on the jaw joints and overworking already tired muscles. Grinding also irritates the new tooth, which may damage your restoration. 

Whether you typically grind your teeth or not, your body can respond to the new sensations of jaw discomfort and a filling by tightening the facial muscles and grinding. Wearing a night guard consistently after the filling may provide relief.

Irritation From the Procedure

The area around the injection site and filling can feel irritated from:

• Local anesthetic injections
• Use of dental instruments on the gums and jaw
• Pressure from cleaning and filling placement

As your anesthesia wears off, you might feel soreness in the gums, jaw, and surrounding muscles; this is typical. It should be mild and resolve within a few days.

Tips For Avoiding Jaw Pain After a Filling

Some discomfort, like injection-site irritation, may be unavoidable. But a few small steps after the procedure can help you reduce the risk of worsening jaw pain.

Rest Your Jaw

Rest the jaw for 24-48 hours. Avoid too much talking or chewing, and limit activities that require you to open your mouth wide. Keep those jaw movements gentle and minimal.

Eat a Soft Food Diet

Eat only soft foods for 48-72 hours. Sticking to a soft food diet reduces stress on the jaw after a filling. Avoid hard, crunchy, or chewy foods that take effort to eat. (Sorry, no apples or steak.) Aim for food that is easy to chew, like smoothies, soft pasta, and yogurt.

Stretch Your Jaw

Use stretching exercises to reduce stiffness 24 hours after your procedure; gentle jaw stretches can relieve tight muscles and restore normal movement. Keep all movements gentle and stop if you experience any pain.

Wear a Night Guard

If you’re a grinder, be sure to wear your night guard to avoid clenching and grinding damage after your procedure. This appliance protects your teeth, reduces pressure on the jaw joints, and prevents muscle tension. As well, it protects the new filling from stress while it settles.

Read This Before You Buy a Night Guard Online

Watch for Bite Changes

Signs of a high bite can be noticed before it causes problems. Look for warnings such as one tooth making contact before the others, discomfort when you’re chewing, or a sensation that your bite feels different. 

It’s important not to ignore these symptoms because an uneven bite can shift how pressure is distributed across your teeth. When one area absorbs more force than it should, it can wear enamel down faster and leave your tooth vulnerable to cracks and decay. Your dentist can easily adjust the bite to prevent jaw strain and long-term damage with a follow-up appointment.

Manage Stress Levels

Stress contributes to muscle tension and is intricately linked to bruxism. A few stress-management techniques can help you prevent unnecessary tightness:

• Deep breathing exercises: Slow, controlled breathing helps the jaw muscles relax and reduces tension that leads to clenching.
• Light physical activity: Walking, stretching, and other gentle movements improve circulation and relieve muscle tightness.
• Healthy sleeping habits: Keeping your quality sleep schedule consistent supports muscle recovery and can reduce grinding and clenching.

Small changes can make a big difference in how quickly and painlessly your jaw recovers after your filling.

Tips for Managing and Reducing Jaw Pain

If you already have pain after your filling, you want it to go away quickly. Most of the time, this discomfort will gradually disappear on its own, but these strategies can help you get back to your day faster.

Use a Warm Compress

Warm compresses are a go-to remedy for muscle relief and can be a relaxing, restful way to recover. Using a warm (not hot) cloth or heating pad, apply the compress to the side of your face for 10-15 minutes at a time. Leave it there and rest while it does its work, relaxing tight muscles and improving circulation.

Apply Ice for Swelling

When should you use warmth, and when is cold the right option? After your procedure, if there’s any swelling or inflammation, cold therapy is the better option.

Apply an ice pack wrapped in a cloth (You need a layer between the cold pack and your skin.) to the affected area. Leave it for 10-15 minutes, and it should reduce the inflammation and numb any localized discomfort you might be feeling.

Take Pain-Relief Medication

Nonprescription pain relievers can help manage mild to moderate discomfort. Over-the-counter medications like ibuprofen or acetaminophen are effective at reducing discomfort, but always follow the dosing instructions. If you have any medical conditions or are taking other medications, ask your healthcare provider which OTC meds are best for your situation.

Try Natural Remedies

For at-home pain relief, some natural remedies can ease jaw discomfort and support post-procedure recovery, such as:

• Warm herbal teas like chamomile and peppermint promote rest and act as a natural muscle relaxant.
• Magnesium-rich foods, including almonds, spinach, and avocados, support muscle function and can reduce tightness and spasms.
• Turmeric, popular for its anti-inflammatory properties, can be taken as a supplement or added to food to help reduce mild inflammation.
• Topical application of essential oils, such as lavender or eucalyptus, may soothe the muscles when massaged gently along the jawline.
• Staying hydrated helps maintain optimal muscle function and prevents cramping or stiffness.

Any of these remedies can be used along with the others, but moderation is key. Contact your dentist if the symptoms persist.

When to Call the Dentist With Concerns

Post-filling pain is normal, but if it doesn’t subside within a few days or you experience certain symptoms, it’s time to call the dentist.

You should contact your dentist in any of the following situations:

• You’re trying your best to relieve the discomfort, but it continues beyond a few days without any market improvement, even with pain medication.
• Your pain is severe or worsening.
• Swelling increases instead of decreasing.
• Fever, sore or stiff neck, or trouble opening and closing the mouth (lockjaw) develops.
• You feel sharp pain when biting.

These are warning signs that shouldn’t be ignored. They may point to issues like an improperly adjusted filling, significant joint inflammation, or infection. Early evaluation can provide the right dental care to prevent further complications and help you get back on track for speedy healing.

Conclusion

No one wants to experience jaw pain after a filling, but it happens. Most of the time, this side effect is temporary, caused by muscle strain, joint sensitivity, mild irritation, or bite changes. With a few at-home pain-relief remedies (and time), your recovery should be short.

Listen to your body and take preventive steps, like wearing your night guard to protect your new filling and defend against the damage of grinding and clenching. 

At JS Dental Lab, we offer professionally crafted, custom-fit night guards to help you heal comfortably and keep your smile safe with long-term protection. Shop now!