acute perio diseases Flashcards
what is NUP a unique side effect of?
AIDs
what is NUG?
endogenous infection
systemic changes in gingiva due to bacterial invasion of oral flora
16-30
seasonal variation
what are clinical features of NUG?
pain, sudden onset necrotic ulcers red, swollen papilla ulceration starting at tips of papilla spreads laterally grey pseaudomembranous slough halitosis- faetor oris spontaneous bleeding metallic taste flattened interdental papilla
what occurs in severe NUG?
lymphadenopathy
general malaise
what happens in NUG is untreated?
healing may lead to chronic gingivitis
reoccurs with further loss of ID papilla
creates stagnation areas
what happen in undernourished countries if left untreated>
oro facial necrosis
cancrum oris
what are the principle bacteria involves in NUG?
treponema vincentii and denticola fusobacterium nucleatum prevotella intermedia porphyromonas gingivalis **anerobic bacteria
what are predisposing factors to NUG?
poor OH
smoking
stress
immunodeficiency
why is smoking a key factor re. NUG?
smoking causes vasodilation which creates anaerobic conditions
IgG levels depressed against subgingival bacteria
helper T cells depressed
motility and chemotaxis of PMNs reduces
describe the zones re. NUG
bacterial zone- surface slough
PMN rich zone- epithelium and superficial
necrotic zone- spirochaetes- many bacteria
deeper tissues- still viable with macrophages and plasma cells
tx for NUG
OHI and explanation
gentle USS +- LA
metronizadole 200mg for 3 days
48 hour review
what should subsequent tx for NUG be?
OHI
smoking cessation
sub and supra debridement
