Woman experiencing a toothache

Toothache | Causes, Types and How to Relieve It

Almost everyone has experienced toothache at some point. It is not merely physical discomfort – it can affect your ability to eat, speak and even your everyday mood.

A toothache can begin as a slight tingling that gradually turns into severe pain, or it can appear suddenly. The pain may be constant or throbbing, present all the time or only after eating and drinking.

Quick takeaways

  • Toothache has many causes, from decay and nerve inflammation to gum disease, cracked teeth, sinus problems and teeth grinding.
  • Home measures such as a cold compress, salt-water rinses and suitable painkillers can ease pain temporarily, but they are not a cure.
  • If pain lasts more than two days or is severe, see a dentist to find and treat the underlying cause.
A person with a toothache holding their cheek

The main causes of toothache

A painful tooth can result from many factors. Poor oral hygiene can lead to caries, dental plaque and gum inflammation. A diet rich in sugar and acids can speed up tooth decay. Pain can also be caused by broken teeth, gum disease, abscesses and problems with the jaw joint.

How modern dentistry helps prevent and treat decay

Modern dentistry does more than treat existing problems – it focuses on preventing them before they appear. Using digital X-rays, laser therapy and 3D imaging, dentists can detect and treat problems at an early stage, which enables better outcomes and less invasive procedures. At OrthoDental we offer a comprehensive range of services with a strong focus on prevention.

Why regular, correct oral hygiene matters

Regular, correct oral hygiene is the foundation of a healthy mouth. Daily brushing, flossing and regular dental visits are crucial for preventing toothache and other problems. Building healthy habits from a young age supports not only a good-looking smile but also better overall health.

Home remedies and aids for relieving a toothache

The different types of toothache

Pain that originates from a tooth is often linked to caries, a cracked tooth or inflammation of the nerve inside the tooth. It tends to be sharp and pulsating and can worsen with cold or hot food and drink. Sometimes it is so strong that it is hard to tell exactly which tooth hurts, as the sensation radiates across the face.

Pain from a tooth, around it, or from the jaw

Pain from the area around a tooth is usually linked to gum inflammation or a dental abscess. It is often less sharp but more constant, and can come with swelling, redness and bleeding gums. Pain from the jaw is often linked to the jaw joint or jaw injuries, and can spread to the ears, head and neck.

Keeping your smile healthy
Habit How often Benefit
Brushing Twice a day Prevents decay
Flossing Daily Healthy gums
Dental check-up Every 6 months Early detection

Why a visit to the dentist is crucial

Regular dental visits are essential for keeping teeth and gums healthy. A professional can detect problems such as decay, gingivitis or other conditions before they become serious and painful. Early detection and treatment can prevent the need for more invasive and expensive procedures later.

It is also highly advisable to have tartar removed regularly, as you cannot remove it yourself at home, which helps prevent gum inflammation and other conditions. Your dentist at OrthoDental will also advise on correct oral hygiene, diet and habits that support healthy teeth.

Children and toothache: reasons and symptoms

In children, toothache arises for various reasons. Common causes are caries and other problems linked to poor dietary habits, a lack of regular oral hygiene or genetics. Sometimes the pain relates to new teeth coming through or the loss of milk teeth, a natural part of a child’s development.

Toothache in children must be taken seriously, as untreated problems can become permanent dental issues in adulthood. Signs such as tooth sensitivity, gum problems and bad breath can indicate it is time to visit the dentist. Establishing a routine of regular cleaning and dental visits from a young age helps children learn to care for their teeth.

Illustration of an inflamed, painful tooth

The most common causes of toothache in adults

Inflammation of the tooth nerve

When bacteria penetrate deep into the tooth and reach the nerve, they can inflame it. The area is very painful, as the nerve sits in a narrow canal with no room to expand when it swells. Nerve inflammation is usually treated with endodontic (root canal) treatment, and a cold compress can help as first aid.

Granuloma: chronic inflammation and its consequences

A dental granuloma is chronic inflammation at the tip of the tooth root, arising from untreated nerve inflammation. Over time it grows and causes pain and swelling, and can lead to tooth loss.

Gum inflammation (gingivitis)

Gum inflammation usually begins with redness, swelling and bleeding gums when brushing. Left untreated, it can progress to periodontitis and tooth loss. Regular oral hygiene and dental visits are key to prevention and treatment.

Tooth injuries

Teeth are hard but not indestructible. Cracks or fractures from accidents or chewing hard objects can damage the enamel, leaving a tooth sensitive or painful. Prompt treatment is crucial to prevent further complications.

Bruxism (night-time teeth grinding)

Bruxism is unconscious grinding or clenching of the teeth, often at night. It can wear down the enamel, damage teeth and cause jaw pain. A night guard is one solution for protecting the teeth.

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Toothache after a filling: when to visit the dentist

After a filling it is normal to feel slight sensitivity or pain for a few days, and painkillers can help. However, persistent pain or sensitivity that lasts longer can indicate problems such as an improperly placed filling or inflammation of the tooth nerve. In that case, a dental visit is necessary.

The connection between the sinuses and toothache

The upper teeth sit close to the sinuses, so sinus inflammation can cause a feeling of pain in the teeth. Conversely, tooth problems can also cause sinus-like symptoms. Understanding this link is important for a correct diagnosis.

Toothache when food gets stuck between the teeth

Food trapped between the teeth can cause gum irritation and inflammation, and later caries, all of which can cause toothache. Flossing and regular cleaning are crucial for preventing this.

Toothache from sensitive tooth necks

Sensitivity at the tooth necks can arise from receding gums, over-brushing or acidic drinks, causing pain with cold or hot food and drink. Toothpaste for sensitive teeth can help protect and reduce the sensitivity.

Toothache from an erupting wisdom tooth (pericoronitis)

An erupting wisdom tooth can inflame the surrounding gum, a condition called pericoronitis. Besides pain, it can cause swelling, redness and difficulty opening the mouth. In severe cases, removal of the wisdom tooth or surgery is needed.

Not sure which tooth hurts?

Sometimes it is hard to pinpoint the painful tooth, as the pain can spread so the whole area or side of the mouth feels sore. This non-specific pain can come from nerve or sinus inflammation and from decay. It is always best to see the dentist to find the exact cause.

How to relieve a toothache at home

Toothache can be very unpleasant, especially at night or when you cannot get help straight away. A dental visit is always the best solution, but these home measures can temporarily ease the pain and help reduce swelling around the tooth:

  • Cold compress: apply a cold compress to the affected side of the face for 15 minutes to help reduce swelling and relieve pain.
  • Salt water: rinsing with lukewarm salt water can help reduce inflammation and the bacteria that cause pain.
  • Toothpaste for sensitive teeth: if the pain is due to sensitivity, this can help reduce symptoms.
  • Anti-inflammatory painkillers: some medicines reduce pain and inflammation – make sure they are suitable for you and follow the dosage instructions.
  • Clove oil: a natural analgesic and antiseptic; gently dab the affected area with a cotton swab dipped in the oil.

These measures are only temporary. If a toothache lasts more than two days or the pain is severe, it is essential to see the dentist to find the cause and get proper treatment. For more guidance on when to seek help, see the NHS advice on toothache.

Painkillers: how they work and when to use them

Painkillers (analgesics) are medicines whose main purpose is to relieve pain. They work in different ways depending on the type. Before using any painkiller, read the instructions and consult a doctor or pharmacist, especially if you take other medicines or have certain medical conditions.

Although toothache is common, it can signal a range of dental problems, so it is best to see the dentist at the first sign of discomfort. At OrthoDental our experienced team is here to find and treat the cause, so you can enjoy a healthy smile without pain. If you would like to know when a tooth needs to be removed, read more about tooth extraction.

Frequently asked questions

How can I ease toothache at night?

A cold compress on the cheek, a lukewarm salt-water rinse and a suitable anti-inflammatory painkiller can help you through the night. Keeping your head slightly raised may also reduce throbbing. These are temporary measures – book a dental appointment as soon as you can.

When should I see a dentist for toothache?

See a dentist if the pain lasts more than two days, is severe, or comes with swelling, fever or difficulty opening the mouth. These can be signs of infection that needs prompt treatment.

Why does my tooth hurt with hot or cold food?

Sensitivity to hot or cold often points to worn enamel, receding gums, a cavity or nerve inflammation. If it is brief it may just be sensitivity, but lingering pain should be checked by a dentist.

Related reading: tooth decay & cavities, dental granuloma, gingivitis, root canal treatment, or our full price list.

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Ocena uporabnikov

Article author

Gordana Čižmek

Gordana Čižmek

Gordana Čižmek, DMD, is an orthodontist and Clinical Director of the OrthoDental centre. She is a double specialist — a specialist in dentofacial (jaw and dental) orthopaedics and a specialist in paediatric and preventive dentistry. She graduated from the Faculty of Medicine, University of Ljubljana, in 1995, completed her specialization in paediatric and preventive dentistry in 2008, and her specialization in orthodontics in 2013. With more than two decades of clinical experience, she focuses on orthodontic diagnostics, the treatment of tooth and jaw irregularities in children, adolescents and adults, and digital planning of orthodontic therapy with invisible aligners such as Invisalign. As Clinical Director she leads the clinic's professional protocols and the planning of complex cases, ensuring individual, expert care for every patient at OrthoDental in Ljubljana, Slovenia.


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