Relationship between toothache and headache. How to deal with it?

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Last updated June 21, 2023

Do you ever get headaches when you have a toothache?

In fact, there is an undiscovered relationship between toothache and headache.

This time,We will discuss the relationship between toothaches and headaches and how to deal with them!

Relationship between toothache and headache

Toothache Headache

When toothache worsens,Headaches can occur through a nerve in the face called the trigeminal nerve (trigeminal nerve).

The trigeminal nerve is primarily used to transmit facial sensations to the brain.

It is called "trigeminal nerve" because there are three nerve entrances and exits, and one nerve leading from the brain is divided into three parts and distributed over the face.

Because two of the three entrances and exits of the trigeminal nerve are located in the upper and lower jaw bones, when a toothache occurs, the two nerves in the upper and lower jaw react to the toothache, causing trigeminal neuralgia, which may result in headaches.

On the other hand, if trigeminal neuralgia or headache occurs for any reason,Pain can be transmitted through the entrance and exit of nerves in the upper and lower jaw, causing toothache.

Sometimes it is possible to determine where the toothache or headache is caused by which one started first.

Basically, if the toothache occurs first, it is often due to an illness or problem in the mouth, and if the headache precedes it, it is often due to cluster headaches with gouging pain behind the eyes.

Toothache causing headache

Toothache Headache

Toothaches that cause headaches include the following

  • cavity
  • periodontal disease
  • periapical dentistry

Both of these conditions rarely cause headaches in the mildest degree.

In more severe cases, such as when the toothache becomes severe or when bacteria infect the maxillary sinus from the lesion, it can develop into a headache.

Headaches, especially those caused by tooth decay, should be noted.

If a painful cavity is left untreated for a long period of time, caries can invade blood vessels and cause cerebral venous thrombosis.

Cerebral venous thrombosis is a life-threatening condition in which caries forms a blood clot in the blood vessels, clogging the blood vessels in the brain and reducing blood flow, causing headaches and nausea.

Also,teeth (of a person)rootTreatment may also cause headaches.

For example, if the pus at the tip of the root was not removed during treatment of the nerve in the tooth, or if the maxillary sinus became infected with bacteria for some reason during treatment.

If pus is not removed during treatment of a tooth's nerve, the pus that causes inflammation may remain, and the tooth inflammation may spill over and develop into a headache.

The pattern of bacterial infection of the maxillary sinus during treatment is most likely to occur with the treatment of nerves in the upper back teeth due to their proximity to the maxillary sinus.

Inflammatory bacteria invade the maxillary sinus through the nerve hole at the tip of the tooth root, causing inflammation.

Maxillary sinusitis caused by teeth is called dental maxillitis.When dental maxillary sinusitis becomes chronic, mild headaches may appear.

Since the maxillary sinuses are located bilaterally around the nose, bilateral maxillary sinuses become inflamed if not caused by teeth, but only one inflamed maxillary sinus becomes inflamed in the case of dental maxillitis.

If there is always a yellow runny nose coming out of the right side only, the maxillary sinus inflammation is occurring only on the right side and may be caused by the teeth.

If you have a toothache, it will only get worse if it is not treated.

If you notice anything unusual, see a dentist as soon as possible.

Headache causing toothache

Toothache Headache

Headaches that cause toothaches can result from the following ailments

  • sinusitis
  • cluster headache

Sinusitis is often accompanied by symptoms such as nasal congestion, cough, and fever,Toothaches tend to manifest over a wide area, such as multiple teeth, the right half of the body, or the entire upper back teeth.

Even if it does not lead to a toothache, it may cause a sensation of floating teeth.

Cluster headaches cause the blood vessels behind the eyes to widen and become inflamed, resulting in severe headaches.

A cluster headache can last for a period of time, every day, in paroxysms, causing a throbbing pain behind the eyes that lasts for several minutes,Toothache may develop while headache is occurring.

It is more likely to occur in men around the age of 30 and occurs less frequently than chronic headaches.

First aid for headache from toothache

Toothache Headache

Headaches from a toothache can be corrected by treating the tooth that is causing the headache.

If you are unable to see a dentist immediately, take the following first aid measures

  • Take over-the-counter painkillers.
  • cool the affected area
  • Do not exercise or drink alcohol

However, first aid is only symptomatic and temporary,Keep in mind that this is not a fundamental improvement.

Basically, the most important thing is to see a dentist as soon as possible.

Take over-the-counter painkillers.

If the pain is severe,Take an over-the-counter pain reliever.

When you cannot sleep because of pain, the damage to your body can easily worsen your symptoms.

If the pain starts at a time when the dentist is not open, first aid treatment with painkillers can be effective.

cool the affected area

Where there is toothache, there is often inflammation.

Place a wet towel on the affected area over the cheek to cool it.

Since applying a cooling agent directly to the cheek may make the affected area too cold and worsen the pain, wrap the cooling agent in a towel to prevent it from getting too cold.

Do not exercise, drink alcohol, or bathe.

As blood flow increases, inflammation worsens and pain increases.

Avoid activities that increase blood flow, such as exercise, drinking, and bathing.

Toothaches and headaches can occur in association.

Toothache Headache

Toothaches and headaches are related in many ways, and the two can occur in association.

If the toothache is spreading and causing headaches, treat it by cooling the affected area and taking painkillers, and see a dentist as soon as possible.

365dentist provides information about the mouth.

We also offer free consultations on oral concerns in our dentist-run open chat, so if you are interested, please come visit us!

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Graduated from Nagasaki University School of Dentistry, ~2018 Kyushu Medical Center, 2018-present Working at a dental clinic in Tokyo

UyRZkXPjQvAn5BK9ai6vfhAEgYGCePrS3Id158EZKuev 2TIlSXaZPkxY9dJ 3vCTCm7hqIEw6AzmlpdiuMD8H 9aD01UftplKrgMtn7dmYeSupervisor: Dentist/Naomi

After completing clinical training, worked in cosmetic dentistry in Tokyo. Currently a dentist and dental writer.


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