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list 3 viral causes of non-plaque induced gingival lesions
primary HSV, recurrent HSV, herpes zoster
list 3 fungal causes of non-plaque induced gingival lesions
candidiasis, linear gingival erythema, histoplasmosis
list a genetic cause of non-plaque induced gingival lesion
hereditary gingival fibromatosis
list a bacterial cause of non-plaque induced gingival lesion
infective gingivitis and stomatitis
list 5 systemic causes of non-plaque induced gingivitis
- 1. lichen planus
- 2. pemphigoid
- 3. pemphigus vulgaris
- 4. erythema multiforme
- 5. lupus erythematosus
list 4 bacteria involved in non-plaque induced gingival lesions
- 1. n. gonorrhea
- 2. t. pallidum
- 3. streptococci
- 4. m. chelonae
what is the key symptom of a primary HSV gingival lesion?
ulcerations with serofibrinous exudate
what are the symptoms and differential diagnosis of recurrent HSV gingival lesions?
- symptoms: ulcers at vermillion border, attached gingiva or hard palate
- differential: aphthous ulcers are not on keratinized mucosa
herpes zoster remains latent where?
latent in dorsal root ganglion and 2nd/3rd trigeminal branches
what does candidiasis cause and what are the signs?
candidiasis causes Thrush: pseudomembranous (white precipitate) and erosive erythematous (yellowish edema)
what is the key feature of linear gingival erythema?
distinct red band limited to free gingiva and lack of BOP
describe the pathology of histoplasmosis
granulomatous disease causing caseous necrosis in any area of the oral mucosa
define hereditary gingival fibromatosis
only genetic disorder to cause gingival enlargement and displaces teeth.
describe the classic sign of lichen planus
wickham striae: white lace-like appearance
autoantibody reaction against hemidesmosomes and lamina lucida that causes detachment of the epithelium from CT
define pemphigus vulgaris
- acantholysis: breakdown of the spinous cell layer
- -also: mediterranean and jewish background
describe erythema multiforme
- - bullae rupture and leave extensive ulcers
- - bulls-eye lesions
- - swollen lips
- - crust on vermillion border
describe lupus erythematosus
- - autoimmune CT disorder (assoc. with Marfan's)
- - clincally: central atrophic area surrounded by irradiating fine white striae with a periphery of enlarged capillaries