Can a Toothache Cause a Headache?

Yes, a toothache can lead to a headache. This occurs because the trigeminal nerve, which is the largest of the cranial nerves, is responsible for carrying sensory impulses from the face to the brain, including those from the teeth.

When there’s dental pain or infection, this nerve can get irritated, leading to referred pain in the head. Conditions such as cavities, gum disease, and abscesses can trigger this process, manifesting itself as headaches.

A toothache and a headache on the same side may indicate an underlying medical condition. Infections of the sinuses or temporomandibular joint (TMJ) are common causes of this phenomenon.

This blog post explores the connection between tooth pain and headaches. We’ll look at why a bad tooth might be giving you a headache and offer suggestions on how to get relief.

The connection between tooth pain and headaches

In many cases, tooth pain and headaches are caused by the trigeminal nerve, one of the largest nerves in the head that plays a central role in transmitting pain signals. This nerve extends into the forehead, the jaw, and the teeth.

Therefore, when there is an issue such as a dental infection, tooth decay, or even something as seemingly benign as teeth grinding (bruxism), the pain can radiate from the original source in the mouth to other parts of the head, causing a headache to develop.

The crossover of pain signals explains why a toothache may not only cause localized pain but also lead to headaches, including tension headaches or even migraines, depending on the patient.

How Toothaches Can Cause Headaches

Several mechanisms can cause toothaches to trigger headaches:

1) Referred Pain from Infected or Damaged Nerves:

Toothaches caused by dental problems like cavities, cracked teeth, or gum disease can inflame nerves in your mouth. These inflamed nerves can radiate pain to your face, sinuses, neck, and even your head, resulting in a headache.

  • Examples:
    • A tooth infection can spread to your sinuses, causing a sinus headache.
    • A dental abscess putting pressure on nerves can lead to a headache.

2) Muscle Tension from Tooth Pain:

The pain from a toothache can lead to some unintended consequences. You might unconsciously clench your jaws or tense the muscles in your head and neck as you try to find relief.

This prolonged muscle tension can be a major contributor to tension headaches or migraines.

  • Examples:
    • Clenching your jaw due to tooth pain can lead to a tension headache.
    • A toothache can exacerbate existing neck tension, resulting in a cervicogenic headache.

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3) Stress and Anxiety from Ongoing Tooth Pain:

Chronic tooth pain can be a major source of stress, anxiety, and sleep loss. These effects can worsen pre-existing conditions like migraines or contribute to tension headaches.

  • Examples:
    • Toothache pain can worsen your migraine condition due to increased stress.
    • Disrupted sleep caused by a toothache can lead to morning headaches.

How to Tell if Your Headache is From a Tooth

Tooth pain

There are a few ways to determine if your headache originates from your toothache:

Location, Location, Location:

If the headache and toothache are both located on the same side of your head, this suggests they might be related. The nerve and muscle pathways connect the tooth to that specific side.

  • Examples:
    • You have a toothache and a headache on the right side of your head.
    • You experience pain on the left side of both your tooth and head.

Relief with Toothache Treatment:

Suppose your headache starts to improve after receiving treatment for your toothache, such as dental work, medication, or numbing agents. In that case, it’s a strong indicator that the toothache was the root cause.

  • Examples:
    • Your headache goes away after you have a tooth extracted.
    • You experience headache relief after taking antibiotics for a tooth infection.

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Dental Symptoms Accompany the Headache:

Headaches caused by toothaches may also be accompanied by other dental symptoms such as jaw pain, tooth sensitivity to hot and cold, swollen gums, or bad breath. These associated symptoms strengthen the case for a dental cause.

  • Examples:
    • You have a headache with sensitivity to hot and cold in your teeth.
    • Your throbbing toothache is accompanied by a headache.

Sensitivity in Teeth and Jaw

Increased sensitivity or pain in your teeth, particularly if it coincides with jaw pain or tension, can be a sign that the two issues are related.

Tips for Alleviating Toothache-Induced Headaches

If you suspect your headache is related to a toothache, it’s essential to address the underlying dental issue. This can involve anything from over-the-counter pain relief to professional dental intervention. Here are a few steps to consider:

  • Apply a cold compress to the affected area for immediate relief
  • Difficulty in opening the mouth may be a sign of TMJ disorder related to toothaches. In such cases, you can try gentle mouth exercises and jaw massages to relieve some of the pressure.
  • Good oral hygiene and regular dental check-ups can prevent toothaches and related headaches.

When to See a Dentist About Toothache-Related Headaches

When it comes to your health, seeking professional advice is always the best path forward. Ignoring a persistent toothache can lead to serious complications, including secondary headaches. Seeing a dentist can help you diagnose and treat the source of your toothache, potentially halting the cascade of pain before it escalates into a headache.

Likewise, persistent headaches, especially if they are sudden or severe, should be evaluated by a healthcare professional. It is always better to be cautious and rule out underlying health conditions that could be contributing to or causing the headache.

For Ongoing Headaches and Tooth Pain:

If you experience a persistent headache alongside your toothache, consider consulting both your dentist and doctor.

A comprehensive examination by both medical professionals can help identify the sources of pain and develop an effective treatment plan for lasting relief.

Remember, proper diagnosis is key to resolving both headaches and toothaches effectively.


Toothaches don’t have to lead to headaches! This blog explored how tooth pain can cause headaches and offered tips for identifying the connection. If you suspect a dental culprit, see your dentist promptly. Early intervention is key to resolving both issues.

For complex cases, consult both a dentist and a doctor. Remember, good oral hygiene and regular checkups can prevent toothaches and the headaches they trigger. Take charge of your oral health and smile pain-free!

  • What does a toothache headache feel like?

    The specific feeling of a toothache headache can vary depending on the cause. Here are some possibilities:Throbbing or pulsating: This type of pain is common with headaches related to inflamed nerves or sinus issues.Sharp or stabbing: This might be felt if the toothache itself is intense or there’s an abscess putting pressure on nerves.Aching or dull: This can occur with tension headaches caused by muscle clenching due to tooth pain.Pain radiating to the face, jaw, or temples: This is a telltale sign that the headache originates from the tooth.

  • How do you get rid of a headache from a toothache?

    The most effective way to get rid of a headache caused by a toothache is to address the underlying dental issue. Here’s what you can do:See a dentist promptly: They can diagnose the cause of your toothache and provide the necessary treatment, such as a filling, extraction, or antibiotics for an infection.Over-the-counter pain relievers: Medications like ibuprofen or acetaminophen can offer temporary relief from both the toothache and headache.Home remedies: Applying a cold compress to your cheek or using warm salt water rinses might provide some temporary pain relief.

  • Can toothache cause a headache on one side?

    Yes, absolutely! If the headache and toothache are both located on the same side of your head, this strongly suggests they’re connected. The nerves and muscles responsible for tooth sensation are also present on that side of your head, explaining the referred pain.pen_spark

  • Can toothache and headache be connected?

    Yes, toothaches and headaches can definitely be connected in several ways:Referred pain from nerves: Inflamed nerves due to a dental problem can radiate pain to the head, causing a headache.Muscle tension: Clenching your jaw or tensing muscles in response to tooth pain can trigger a tension headache.Stress and anxiety: Chronic tooth pain can cause stress and anxiety, which can worsen existing headaches or contribute to tension headaches.

  • Can toothache cause a headache behind the eye?

    While less common, a toothache can potentially cause a headache behind the eye, especially if the upper teeth are affected. The trigeminal nerve, which innervates the teeth, also has branches that go near the eye. Inflammation or irritation in this nerve can sometimes refer pain to the area behind the eye.

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Harshal Ukirde
Harshal Ukirde

5 years of experience in the medical field.
Dedicated to provide a best healthcare infromation for free.

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