Can Toothache Cause a Headache?

Understanding the connection between toothaches and headaches, including causes such as dental infections, tooth damage, bruxism, TMJ disorders, and how to identify dental-related headaches

Can Toothache Cause a Headache?
Dr. Rob Jung _

If you suffer from toothaches, you know that the pain can be uncomfortable, even debilitating. And, at times, you may be experiencing both a toothache and a headache, which may lead you to wonder if both these are connected. In this article, we'll explore how toothache can cause headaches. So, read on to know more.

Possible Reasons for a Toothache Caused Headache

A toothache and headache are often connected, and there are many reasons how a toothache caused by some underlying dental problem can contribute to headaches. Let's take a look at some of them.

Abscess or Infection

A decayed or damaged tooth can develop a bacterial infection, apart from triggering nerve pain. The bacteria penetrate the tooth and destroy the pulp chamber causing swelling, fever, and pain. It may also cause an abscess.

The diseased nerve tissue not only damages the tooth enamel but also transfers the pain to the face and head. If an abscess forms in your jaw, especially the upper one, it can cause migraine or sinus headaches that can be extremely debilitating.

However, you can prevent the spread of the infection and other complications by immediately seeking treatment for your toothache. Often, antibiotics are used to clear up any infections in the tissue, and a root canal procedure can save an infected tooth. And, when the infection goes away, the headaches will also disappear.

Tooth Damage

The nerve tissue is very sensitive, and if you're suffering from any tooth damage such as a worn, cracked, or broken tooth that exposes the nerve tissue, it can cause pain, which may not be limited to the affected tooth alone. The pain in the nerve pulp of the tooth can travel via the trigeminal nerve to the head and cause a headache.

Sometimes, nerve pain caused by tooth damage can even trigger migraines (intense pain on one side of the head) and other symptoms such as nausea, vomiting, sound, or light sensitivity.

So, if you have a damaged tooth, you should consult a dentist immediately who can treat any infection and also relieve or prevent pain. Using permanent crowns can help cover the damaged enamel and protect the nerve tissue from any stimuli, preventing damage, toothache, and headache.

Bruxism

Grinding of teeth, gnashing, or clenching them unconsciously is known as bruxism. When the top and bottom teeth are misaligned, it can wear the tooth enamel, causing the jaw muscles to become fatigued and even causing tooth fractures.

Any tooth damage because of bruxism can cause nerve pain to be transferred from the teeth to your face and the head. In addition, the repeated clenching of the jaw and grinding of teeth results in constant sore jaw muscles, trouble closing and opening the mouth, and headache, especially when you wake up in the morning.

So, if you suffer from headaches caused by bruxism, you can consult your dentist, who can help. They may ask you to wear a mouth guard that can help to align the jaws properly, reduce jaw tension, tooth enamel wear and, as a result, reduce headaches.

Other Causes

There may be certain conditions that may cause a toothache, as well as a headache, but may not be a tooth-related problem such as:

Temporomandibular Joint Disorder

Another common condition that causes headaches is TMJ (temporomandibular joint disorder). TMJ causes a problem in the jaw joint that is in front of the ear and the muscles around it. TMJ causes toothache and headaches, which are generally triggered by the movement of the jaws, such as closing and opening the mouth.

Most often, TMJ occurs when there is some injury to the joint and things such as whiplash, sports trauma, or even keeping your mouth wide open for a long time.

Sinus Infection

If you have sinus congestion or infection, you may experience some discomfort or pain in one/many teeth that are located below the maxillary sinus. And apart from a toothache, you may also have a headache that worsens, especially when you bend forward.

Signs That Your Headache May Be Due to Dental Problems

Several problems can cause headaches, and pinpointing the trigger or cause of the headache can be rather difficult. However, headaches related to dental issues generally are preceded or accompanied by symptoms such as:

  • Toothache
  • Sore jaw muscles
  • Bruxism (teeth grinding)
  • Clicking or popping of the jaw
  • Pain behind the eyes
  • Scalp tenderness

In conclusion, having a toothache, as well as a headache, can be quite uncomfortable and hamper your ability to carry out your daily tasks. The cause of this kind of pain can be quite difficult to pinpoint, so you should note the type of pain and what may have triggered it.

This can help your dentist determine the possible causes of the toothache and headaches and provide appropriate dental treatment.

Sources and References

  1. [1]
    Bruxism, temporomandibular disorders, and headache: a narrative review of correlations and causalities
    Pain
    https://pubmed.ncbi.nlm.nih.gov/38888745/
  2. [2]
    Temporomandibular Disorders, Bruxism and Headaches
    Neurology Clinics
    https://pubmed.ncbi.nlm.nih.gov/38575267/
  3. [3]
  4. [4]
    Chronic migraine headache and multiple dental pathologies causing cranial pain for 35 years: the neurodental nexus
    BMJ Case Reports
    https://pmc.ncbi.nlm.nih.gov/articles/PMC6768330/

All sources accessed and verified on . Medical information reviewed for accuracy and compliance with current guidelines.

Related Articles

About The Dental Guide

The Dental Guide is a trusted online resource providing evidence-based information about dental health, treatments, and procedures. Our content is created and reviewed by qualified dental professionals to help you make informed decisions about your oral health.

Our Mission

  • Evidence-based dental information
  • Expert-reviewed content
  • Clear, accessible explanations
  • Latest treatment options
  • Patient-focused guidance

Editorial Standards

  • GDC-registered dental professionals
  • Peer-reviewed sources
  • Regular content updates
  • Medical accuracy verification
  • Transparent authorship

Important Notice

The information on The Dental Guide is for educational purposes only and should not replace professional dental advice. Always consult with a qualified dentist for diagnosis and treatment recommendations tailored to your individual needs and circumstances.

Medically Reviewed

Reviewed by Dr. Nasim Mechoui , BDS (Bristol)

Published:
Updated:

Share this article

Dr. Rob Jung

Award-winning cosmetic and implant dentist specializing in smile makeovers and dental implants in London.

Experience: 10+ years

Dr. Rob Jung is an award-winning cosmetic and implant dentist with a passion for creating beautiful, healthy smiles. He specializes in comprehensive smile makeovers and advanced implant procedures, offering patient-centered care with flexible payment options.

Education

  • Dentistry
    Medical University of Łódź, Poland (2016)

Certifications

  • GDC Registration
    General Dental Council (2017)
  • Digital Dentist of the Year
    Industry Award (2021)
Cosmetic Dentistry Implant Dentistry

Comments & Discussion

Have questions about dental implants? Share your thoughts or experiences.