Can a Toothache Cause a Headache? Causes and Relief

A toothache can cause a headache when pain spreads through shared nerves, when jaw muscles are strained, or when sinus pressure builds. 

The trigeminal nerve, which connects the teeth, jaw, and head, often carries these pain signals. This is why dental pain can sometimes feel like head pain.

A toothache-related headache can make simple activities like eating, chewing, or even sleeping uncomfortable. The pain affects one side of the face and may worsen if the underlying dental issue is left untreated.

According to Dr. Olga Dolghier from Palm Valley Pediatric Dentistry and Orthodontics, these headaches can be an early sign of oral health problems that may become more serious over time.

What is the Connection Between Toothache and Headache?

Toothache-related headaches can occur for several reasons. 

Since the mouth, jaw, and head share interconnected nerves and muscles, pain can easily travel between these regions.

Trigeminal Nerve

The trigeminal nerve is the largest cranial nerve responsible for facial sensation and mobility. It has three major branches:

• Ophthalmic
• Maxillary
• Mandibular

According to the Cleveland Clinic, this nerve plays a major role in carrying pain signals from the face and mouth to the brain. 

The trigeminal nerve sends pain signals to the brain from the mouth and facial region. Many dental problems can trigger the trigeminal nerve, which then sends pain signals through shared nerve pathways.

As these pain signals travel, they can affect nearby areas and trigger headaches.

Referred Pain

Sometimes, a toothache-triggered headache occurs due to referred pain. This occurs when pain in one part of the body is felt in another region.

Pain in teeth can be mistaken for pain in the jaw, temple, or ear, even though none of those areas are the actual source. 

Because of the complex trigeminal nerve network, this referred pain can extend into the head or neck.

Jaw-Related Pain

Jaw-related problems, such as dental alignment issues and jaw joint disorders, can cause strain and tension. This often triggers tension-related headaches along with jaw pain.

Muscle Strain

Oral muscles can become strained when extra pressure is exerted. This strain may also trigger headaches.

One common cause of facial muscle strain is dental problems. Other causes may include lifestyle habits, medical conditions, and injuries.

Sinus Pain

Sinus issues are another possible reason behind toothache-related headaches.

Sinus pain can sometimes feel like tooth pain because of its location. Since sinus pressure often causes headaches, it may be mistaken for dental pain.

Signs Your Headache is Triggered by a Toothache

A headache caused by a toothache usually has some clear signs. Here are some common symptoms to look for:

If you have these signs, it is best to visit a dentist or doctor to find out what is causing the pain and get the right treatment.

7 Common Dental Problems That Trigger Headaches

Some dental problems do not just hurt your teeth. They can also cause pain that spreads to your head. Here are some common reasons:

1. Abscessed Tooth

An abscessed tooth occurs when bacteria cause an infection, creating a pocket of pus inside the tooth or gums.

This infection can cause severe pain, swelling, and pressure. In some cases, the pain can spread to the jaw and head, causing a headache.

The Mayo Clinic notes that untreated tooth abscesses can lead to severe pain, swelling, and even the spread of infection. 

2. Cracked Teeth

A cracked tooth can cause sharp pain, especially when you chew or bite.

This usually happens from biting hard foods, teeth grinding, or injury. 

The crack can expose the tooth’s inner nerves, which may lead to headaches.

In some cases, habits like teeth grinding can slowly weaken the tooth and lead to cracks that expose sensitive nerves. 

3. Damaged Dental Filling

Dental fillings are used to fix damaged teeth, but over time they can wear out, crack, or fall out.

Your dentist can fill you in on how long dental fillings take and how long they last, which can help you stay prepared for repairs or replacements. 

When this happens, the tooth becomes sensitive, and the nerves may get irritated. This pain can sometimes spread and trigger headaches.

4. Tooth Decay

Tooth decay is one of the most common causes of tooth pain.

When a cavity gets deeper, it can reach the nerves inside the tooth. This can cause pain, pressure, and sensitivity that may lead to headaches.

5. Jaw-Related Disorders

The temporomandibular joint (TMJ) connects your jaw to your skull and helps you talk and chew.

If this joint has swelling, stress, or movement problems, it can cause jaw pain, stiffness, and headaches.

6. Alignment Troubles

Problems like overbite, underbite, or crooked teeth can put extra pressure on your jaw when you chew.

This extra pressure can strain the muscles and nerves in your face, which may cause headaches, especially if you notice tooth pain when biting down.

7. Wisdom Tooth Problems

Wisdom teeth can cause problems if they do not develop properly or become impacted under the gums.

This can cause pain, swelling, and pressure in the mouth. The pain can spread to nearby areas and trigger headaches.

In many cases, cavities in wisdom teeth can make the pain even worse and increase pressure in the surrounding area. 

5 Quick Pain Relief Solutions for Toothache-Related Headaches

A headache caused by a toothache usually improves once the toothache is treated. 

But until you fix the real problem, these simple remedies can help lower the pain and make you feel more comfortable.

1. Use a Hot or Cold Compress

Placing a warm or cold pack on the painful area can help calm the discomfort for a short time.

A cold compress can reduce swelling and numb the area, while a warm compress can relax tight muscles and improve blood flow. 

Both can help ease tooth pain and the headache that comes with it.

2. Take Over-the-Counter Pain Medicine

Pain-relief medicines like ibuprofen or acetaminophen can help reduce both tooth pain and headaches.

These medicines work by reducing inflammation and blocking pain signals. They can provide temporary relief, but they do not address the underlying dental problem.

Some people follow the 3-3-3 toothache rule, which means taking pain medicine three times a day for three days. 

However, it is always best to follow the dosage instructions or ask your dentist.

3. Rinse With Saltwater or Hydrogen Peroxide

Washing your mouth with warm saltwater can help clean the area and reduce bacteria.

A diluted 3% hydrogen peroxide rinse may also help fight germs and reduce swelling. This can lower irritation in the tooth and help lessen the pain spreading to your head.

4. Apply Clove Oil

Clove oil is a natural remedy often used for tooth pain because it has numbing properties.

Putting a small amount on the sore tooth can help reduce pain for a while. It may also calm irritation and make the area feel less sensitive.

5. Try a Gentle Massage

If your headache is caused by jaw tension or muscle strain, a soft massage may help.

Gently rubbing the jaw, temples, or cheeks can relax tight muscles and improve blood flow. This can reduce pressure and make both the toothache and headache feel lighter.

See a Dentist & Prevent Toothache-Related Headaches!

Toothache-related headaches can make everyday tasks like eating, sleeping, and focusing much harder. 

Home remedies may help for a short time; the best way to stop the pain is to treat the real cause.

Ignoring tooth pain can lead to more serious dental problems, including infections, tooth damage, or even the need for tooth removal. Taking care of your teeth with regular brushing, flossing, and dental checkups can help prevent these issues from getting worse.

If your toothache and headache are not going away, our team at Palm Valley Pediatric Dentistry and Orthodontics is here to help. 

If you need a simple checkup or a professional tooth extraction, we provide gentle care to relieve your pain and protect your oral health.

Do not wait for the pain to get worse. Contact the PVPD Team today and let our experienced team help you feel comfortable and pain-free again.

People Also Ask

How do I know if my headache is coming from a toothache?

A toothache-related headache usually comes with dental pain, jaw discomfort, or tooth sensitivity. If the headache gets worse when chewing or if pain is focused around your jaw or temples, your teeth may be the cause.

Can a cavity cause headaches?

Yes, a deep cavity can irritate the nerves inside your tooth and create pressure. This pain can travel through shared nerve pathways and cause a headache.

Can wisdom teeth cause headaches?

Yes, wisdom teeth can lead to headaches if they are impacted, infected, or growing in the wrong direction. The pressure and swelling can spread pain to the jaw and head.

Will pulling a tooth stop my headache?

If the tooth is the main cause of the pain, removing it may help stop both the toothache and the headache. Your dentist can examine the tooth and suggest the best treatment.

How long can a toothache headache last?

It depends on the cause. Some headaches may go away after a few hours, while others can last for days if the dental problem is not treated.

When should I see a dentist for a toothache and headache?

You should see a dentist if the pain is severe, keeps coming back, or is paired with swelling, fever, or trouble chewing. Early treatment can prevent bigger dental problems.

Can sinus pressure feel like tooth pain?

Yes, sinus pressure can create pain in the upper teeth because the sinus cavities are close to the tooth roots. This can sometimes make it hard to tell if the pain is from your teeth or your sinuses.