Toothache

A toothache is pain in your teeth.

It can hurt your mouth or face.

Sometimes, a tiny hole forms in a tooth. This can make the inside of the tooth swell. The swelling makes the tooth hurt.

Food can also get stuck between your teeth. This can make your gums feel sore. It might happen when you eat meat.

Other things can cause pain too. A sinus problem can hurt your back teeth. Even heart trouble can cause pain in lower teeth.

Dentists help fix these pains. You can stop many aches by cleaning your teeth well.

A toothache is pain in your teeth or the parts that hold them.

It is the most common pain in the mouth or face. Most toothaches come from problems with the teeth.

One cause is pulpitis. This is when the pulp, the soft part inside a tooth, gets swollen. This can happen from tooth decay or a crack. Because the pulp is inside a hard shell, swelling creates pressure. This pressure can cause pain. If the pulp cannot get healthy again, it is called irreversible. This can lead to pulp necrosis, which means the pulp dies.

Sometimes, an abscess forms. An abscess is a small pocket of pus.

These often cause a throbbing pain. You can also get pain if food gets stuck between teeth. This is called food impaction.

It can make your gums swell and bleed.

Other things can cause pain too. A sinus problem can hurt your back teeth. Even heart trouble can cause pain in lower teeth. Dentists help fix these problems. They may use a filling or a root canal.

Good cleaning helps prevent toothaches.

A toothache is pain in your teeth or the structures that hold them in place.

It is the most common type of pain people feel in their mouth or face. Most of these pains come from dental issues, but sometimes they come from other parts of the body. For example, a sinus problem can cause pain in your upper back teeth. Even heart issues like angina pectoris can cause pain in your lower teeth.

Because it can be so uncomfortable, toothaches are a very common reason for emergency dental visits.

Many toothaches happen because of pulpitis, which is inflammation of the soft part inside your tooth.

This can happen because of tooth decay, a crack, or an imperfect filling. The pulp is trapped inside a hard, rigid shell. When it swells, there is no room for it to grow. This creates pressure that can squeeze the blood vessels inside. This lack of oxygen can lead to pulp necrosis, which means the tissue dies.

If the pain is mild and goes away quickly, it might be reversible. If the pain is severe and lasts a long time, it is irreversible.

Sometimes, a toothache is caused by an abscess.

An abscess is a small collection of pus. There are different kinds of abscesses that can form. An apical abscess happens near the tip of the tooth root. A periodontal abscess forms in the gums, often due to gum disease. These types of infections often cause a deep, throbbing pain.

Dentists can treat these by draining the pus or using other medical actions.

Other problems can also cause discomfort in your mouth. Dentin hypersensitivity is a sharp pain that affects about 15% of people.

It is often triggered by cold air, sweet foods, or spicy drinks. This happens when gums recede and expose the roots of the teeth. Another issue is food impaction, where food gets stuck between teeth. This can happen if there is a gap between teeth or a poorly shaped filling. This trapped food can make the gums swell, feel tender, and bleed.

Understanding how to prevent toothaches is very important for your health. Good oral hygiene helps prevent the diseases that lead to pain.

If a toothache does happen, a dentist can help find the exact cause. They might use a filling, a root canal, or even remove the tooth. Historically, the need to treat toothaches is thought to have helped dental surgery become a special part of medicine. In 2013 alone, there were 223 million cases of toothache from decay in permanent teeth. There were also 53 million cases in baby teeth.

A toothache is pain located in the teeth or their supporting structures. It is the most common type of pain experienced in the mouth or face. While most toothaches are odontogenic, meaning they come from dental issues, some are non-odontogenic. This means the pain is referred to the teeth from other parts of the body. For example, maxillary sinusitis can cause pain in the upper back teeth. Even angina pectoris, a heart condition, can cause pain in the lower teeth.

To understand toothache, one must understand how the body senses it. The pulp and the periodontal ligament both contain nociceptors, which are pain receptors. However, the pulp lacks proprioceptors for motion and mechanoreceptors for pressure. Because of this, pain from the dentin-pulp complex is often poorly localized. In contrast, pain from the periodontal ligament is usually well localized. The periodontal ligament is incredibly sensitive; it can detect pressure from objects smaller than 10–30 μm.

One major cause of pain is pulpitis, which is inflammation of the dental pulp. This inflammation can be triggered by mechanical, thermal, chemical, or bacterial irritants. Common causes include tooth decay, dental trauma like a fracture, or an imperfect filling seal.

Because the pulp is encased in a rigid outer shell, it cannot expand when it swells. This increased pressure can compress blood vessels, leading to ischemia, or a lack of oxygen. This process can result in pulp necrosis, which is the death of the pulp tissue.

Pulpitis is categorized into two distinct types based on its severity. Reversible pulpitis involves mild to moderate pain that lasts a short time after a stimulus like cold. This can be resolved if the cause is removed or if the tooth produces tertiary dentin to insulate the pulp. Irreversible pulpitis involves severe, spontaneous pain that lingers long after a stimulus. If left untreated, irreversible pulpitis progresses to pulp necrosis and eventually apical periodontitis.

Another common issue is dentin hypersensitivity, which affects about 15% of the population. This causes sharp, short-lasting pain triggered by cold, sweet, or spicy substances. It is most often caused by gingival recession, where receding gums expose the tooth roots. While the pulp remains healthy during hypersensitivity, the exposed dentin reacts intensely to triggers. Over time, the pulp may adapt by producing more tertiary dentin to increase the protective layer.

Infections can also lead to abscesses, which are localized collections of pus. An apical abscess occurs near the root tip, often following pulp necrosis. A periodontal abscess forms in the gum crevices, usually due to chronic periodontitis where pockets are deeper than 3mm.

These abscesses typically cause a deep, throbbing pain. There is also a variant called a gingival abscess, which is limited to the gum margin and often results from trauma like a toothpick.

Other complications include food impaction and acute necrotizing ulcerative gingivitis (ANUG). Food impaction occurs when debris, such as fibrous meat, becomes trapped in an "open contact" between teeth. This causes the gingival papilla to swell, feel tender, and bleed.

ANUG is a sudden, severe gum infection characterized by bleeding, painful ulcers, and bad breath.

These conditions highlight how even small disruptions in oral health can lead to significant discomfort.

Toothache is a major public health issue with massive numbers. In 2013, there were 223 million cases of toothache caused by dental caries in permanent teeth. There were also 53 million cases involving baby teeth. Because of the high demand for relief, dental surgery is thought to have emerged as the first specialty of medicine. Proper oral hygiene is the best way to prevent the diseases that lead to these painful conditions.