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Dental Abscess

Dental Abscess Overview

A dental abscess is an infection of the mouth, face, jaw, or throat that begins as a tooth infection or cavity. Although these infections can be caused by poor dental health and can result from lack of proper and timely dental care, they may also occur in people with underlying autoimmune disorders (Sjögren's syndrome and similar conditions) and people who have other conditions that weaken the immune system (diabetes, post-radiation/chemotherapy cancer care). Dental abscesses can also be triggered by minor trauma in the oral cavity.

  • Bacteria from dental caries (a tooth cavity) can extend into the gums, the cheek, the throat, beneath the tongue, or even into the jaw or facial bones. A dental abscess can become very painful when tissues become inflamed. A gum or gingival abscess is the result of infection or trauma to the surface of the gum tissue. Periodontal abscesses are the result of an infection that has moved deeper into gum areas, and a periapical abscess refers to a tooth with an infection of the pulp.


  • Pus collects at the site of the infection. The condition will become progressively more painful until the abscess either ruptures and drains on its own or is drained surgically.


  • Rarely, the infection can progress to the point at which swelling threatens to block the airway, causing difficulty breathing. Dental abscesses can also make you generally ill, with nausea, vomiting, fevers, chills, and sweats.


Next: Dental Abscess Causes »

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Dental Abscess

Toothache Overview

Toothache or tooth pain is caused when the nerve root of a tooth is irritated. Dental (tooth) infection, decay, injury, or loss of a tooth are the most common causes of dental pain. Pain may also occur after an extraction (tooth is pulled out). Pain sometimes originates from other areas and radiates to the jaw, thus appearing to be tooth pain. The most common areas include the jaw joint (temporomandibular joint or TMJ), ear pain, and even occasional heart problems.

  • Bacteria growing inside your mouth can contribute to gum disease, plaque, and dental decay. These problems can become painful. The cause and prevention of dental disease has been well investigated.
  • You can prevent the majority of dental problems through flossing, brushing with fluoride toothpaste, and having your teeth professionally cleaned twice a year. The dentist may apply sealants and fluoride, which are especially important in children.
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Read What Your Physician is Reading on eMedicine

Dental Abscess »

A dentoalveolar abscess is an acute lesion characterized by localization of pus in the structures that surround the teeth.

Read More on eMedicine »

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