Pain in one or more teeth is a symptom of an underlying problem with the teeth or gums.

Toothache may last only a few minutes, or it may be continuous.

Depending on the cause, the pain may vary from a dull ache to a severe throbbing sensation.
 

The symptom of the early stages of tooth decay is a sharp pain triggered by biting or consuming hot, cold, or sweet foods and drinks

Receding gums.

A fractured tooth.

Advanced gum disease may also result due to toothache.

Due to inflammation of the gums and buildup of plaque (a deposit of food particles, mucus and bacteria) a dull pain in the teeth while chewing can be caused.

Food trapped between the teeth can also result in dull pain.

A persistent severe, throbbing pain is usually the result of advanced tooth decay , in which the pulp, or central part of the tooth containing the nerves and blood vessels, becomes inflamed.

If the pain enhances so that the tooth becomes tender to touch, it may indicate that pulpitis has developed into a dental abscess at the root, with infection and death of the pulp tissues.

In case the infection spreads to the surrounding tissues and fever, sometimes the facial swelling can also occur.

Enlargement and tender of lymph nodes in the neck can also occur..

Emergence of wisdom teeth may cause pain and tenderness at the back of the mouth.

If the wisdom teeth has only partially emerged or grown in the wrong direction it can cause tremendous pain in the gums.

In certain cases toothache occurs as a result of a disorder elsewhere in the body, such as sinusitis an ear infection or a problem in the joint between the jaw and the skull.
 

If you have toothache, you should consult your dentist immediately.

If you have a fever and /or a swollen face in addition to toothache, you should see a dentist immediately.

Use analgesic, such as aspirin and acetaminophen, in order to relieve toothache while you are waiting for an appointment. 

Rinsing your mouth with warm saltwater may also help.

Clove oil also help soothe the pain when applied to the tooth.

The most secure remedy for the affected tooth is to be treated by a dentist.

Your dentist will ask you about your symptoms and examine your teeth and gums. He or she may also take X-rays of your mouth to look for decay.

If toothache is caused by decay, your dentist will remove the decayed areas and may put in an ordinary filling to stop the pain and prevent further decay.

If you have gingivitis, dentist will probably remove the plaque by scaling the teeth. He or she may also prescribe antibiotics for an infection.

If tooth decay is advanced and you have pulpitis or a dental abscess, you may need root canal treatment in which the soft tissues within the tooth are removed.

The cavity is sterilized to clear up the infection, and the root canals and decayed area are filled permanently.

A tooth that is very badly damaged or decayed and painful, impacted wisdom teeth may be extracted.

If toothache is due to a condition such as sinusitis or an ear infection, you may need to consult your doctor for the necessary treatment.

To prevent toothache, brush and floss your teeth and gums regularly. You should also have regular dental checkups