Theory III

localized collection of pus in a circumscribed or walled-off area formed by the disintegration of tissues

runs a relatively short course; produces pain and local inflammation

slow development with little evidence of inflammation; usually an intermittent pus discharge; may follow an acute abscess

circumscribed collection of pus around the apex of a tooth root; results from pulpal necrosis

in the periodontal tissues; also called lateral or parietal

foul, offensive odor from the mouth; halitosis

a pathologic sinus or abnormal passage that leads from an abscess to the surface of the gingiva or mucosa

a lay term for a circumbscribed swelling in the tissue over the alveolar process, usually at the level of the root apices; may break and drain periodically, thus preventing pain

gingivitis in the HIV positive patient; characterized by a well-demarcated band of intense erythema at the gingival margin, not associated with dental biofilm, and which does not respond to conventional biofilm removal procedures

feeling of general indisposition, uneasiness, discomfort; may be early indication of illness

death of tissue; morphologic changes indicative of cell death caused by enzymatic degradation

severe and rapidly progressive disease that has a distincitive erythema of the free gingiva, attached gingiva, and the alveolar mucosa; extensive soft tissue necrosis that usually starts with the interdental papillae; marked loss of periodontal attachment; deep probing depths may not be evident because of marked recession

not administered by way of the alimentary canal, but, for example, subcutaneous, intramuscular, or intravenous

gingival inflammation around the crown of an incompletely erupted tooth; most frequently occurs about a mandibular third molar

false membrane; false layer of tissue that covers a surface

accompanied by or containing pus

a channel that connects with an abscess or supurating area

formation or development of an ulcer with loss of epithelial surface and sloughing of necrotic inflammatory tissue

Name some of the microbiology involved in necrotizing infections (5)

What is contained in the pseudomembrane (a necrotic slough of the surface epithelium) covering the lesion in NUG?