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localized collection of pus in a circumscribed or walled-off area formed by the disintegration of tissues
abscess
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runs a relatively short course; produces pain and local inflammation
acute
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slow development with little evidence of inflammation; usually an intermittent pus discharge; may follow an acute abscess
chronic
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circumscribed collection of pus around the apex of a tooth root; results from pulpal necrosis
periapical
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in the periodontal tissues; also called lateral or parietal
periodontal
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foul, offensive odor from the mouth; halitosis
fetor oris
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a pathologic sinus or abnormal passage that leads from an abscess to the surface of the gingiva or mucosa
fistula
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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
gum boil
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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
linear gingival erythema
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feeling of general indisposition, uneasiness, discomfort; may be early indication of illness
malaise
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death of tissue; morphologic changes indicative of cell death caused by enzymatic degradation
necrosis
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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
necrotizing ulcerative periodontitis (NUP)
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not administered by way of the alimentary canal, but, for example, subcutaneous, intramuscular, or intravenous
perenteral
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gingival inflammation around the crown of an incompletely erupted tooth; most frequently occurs about a mandibular third molar
pericoronitis
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false membrane; false layer of tissue that covers a surface
pseudomembrane
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accompanied by or containing pus
purulent
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a channel that connects with an abscess or supurating area
sinus tract
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formation or development of an ulcer with loss of epithelial surface and sloughing of necrotic inflammatory tissue
ulceration
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Name some of the microbiology involved in necrotizing infections (5)
- selenomona species
- trepenoma species
- prevotella inermedia
- porphyromonas
- fusobacterium
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What is contained in the pseudomembrane (a necrotic slough of the surface epithelium) covering the lesion in NUG?
- leukocytes
- bacteria
- epithelial cells
- fibrin
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