localized collection of pus is called
An abscess is a localized collection of pus surrounded by inflamed tissues. A tooth abscess, also called an acute periapical abscess, may develop either directly from acute periapical periodontitis (inflammation of the tooth supporting tissues around the apex) or usually from a chronic periapical granuloma.ental abscess can form in a badly decayed or infected tooth and the quickest way to drain the pus would be tooth extraction. If you donât want to get your tooth pulled, then one of your tooth repair options is to have a root canal. Root canal therapy is done to facilitate drainage of pus through the root canals.