Dental pain is usually caused by irritation in the nerve of the tooth, World Dental says. However, other dental disorders or the grinding of teeth at night can also cause tooth pain, so if you are unsure of the cause of your pain, get it checked by a professional. Pain is often more apparent at night, when you are trying to relax. Learn to listen to your body and do something about it.
Dental and Ear Disorders
Dental disorders such as infection or decay, ear infections and temporomandibular joint problems may all result in tooth pain, according to Medline Plus. If you suspect one of these problems or are unsure of the nature of your pain, arrange to see a doctor or dentist as soon as possible.
Bruxism
The habit of clenching and grinding your teeth at night is known as bruxism, according to MedlinePlus. Professionals are not sure what causes bruxism, but it's thought to be stress-related. Whether or not chronic teeth grinding causes pain is connected to various other factors -- including length of grinding, your posture, your diet and your sleeping habits.
Other Symptoms of Bruxism
Symptoms of bruxism include stress and anxiety, depression, referred pain to the ear or head, eating disorders, insomnia and sensitivity to hot, cold or sweet foods, says MedlinePlus. If you clench your teeth during the day, you probably do the same at night.
Ways to Prevent Bruxism
Avoid the consumption of excess alcohol and caffeine, which are thought to exacerbate the problem. Certain medications, including many antidepressants, may also worsen bruxism, but consult medical staff before stopping any medication. Avoid chewing gum or pens, which gets your jaw in the habit of clenching. Relax your jaw each time you find yourself clenching during the day. See a health professional for stress counseling, or ask your dentist about having a mouthguard fitted to protect your jaw at night.
Relief of Pain Caused by Bruxism
If you experience tooth pain, visit a dentist as soon as possible. In the meantime, try some home remedies to get you to your appointment in as little pain as possible. MedlinePlus suggests you apply ice or a hot cloth to the affected areas. Drink a lot of water each day and get plenty of sleep at night. Massage your neck, shoulders and face before bed, and visit a physiotherapist to learn some stretching exercises and relaxation techniques. Relax your face throughout the day to get the muscles into the right habit, and avoid eating hard foods until the pain diminishes.


