The abscess is a pus-filled pocket caused by infectious bacteria. Periodontal abscesses occur in the gums and at the sides of the root of teeth. Periapical abscesses form at the tip of a tooth's root.

A toothache is usually caused by a tooth or gum problem, but can stem from a non-dental issue. Treatment depends on the ...

Abscess tooth infection can cause severe swelling and inflammation at the tip of the root. In a case of tooth abscess, the signs might include throbbing tooth pain, swelling, fever, sensitivity ...

Root canal: A root canal is often performed to salvage the tooth after the infection clears, but it is often used as the first approach to treat a tooth abscess.

Abscesses originate from the dead pulp tissue, caused by untreated tooth decay, a failed root canal treatment or extensive periodontal disease or cracked tooth. Dental abscesses are of three kinds.

Learn what the latest studies say about root canals—when they’re needed, how they work, and why quality care matters.

Declining a root canal procedure is not advisable, as you will need to address the infection in your tooth. Ignoring the issue, Dr. Khan says, often results in one of these scenarios: ...

I had a root canal in one of my “ back” teeth about 2 ½ years ago. About 2 weeks ago I had an abscess. When I went to the dentist she told me it was sinus (not taking any x-rays). The next day I went ...

But not my tooth, my face. She then referred me for a second opinion with a dentist. She took a x-ray and determine that it was in fact an abscess in the tooth that already had a root canal. She ...