leziuni albe ale mucoasei orale 1
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Leziuni albe ale mucoasei orale 1
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Leziunile albe ale mucoasei bucale
• Constitue o modificare a mucoase orale in senzul unei
• ingrosari a stratului de cheratina • Hiperplazii ale stratului malpighian• Sau -edemului intracelular• -acoperirii zonelor ulcerate cu
depozite de fibrina• -colonizarilor fungice a ulceratiilor
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Clasificare• 1 Afectiuni ereditare• Nevul alb spongios(maladia Cannon) Diskeratoza intra- epiteliala benigna• Diskeratoza foliculara
• 2 Leziuni reactive• - Hiperkeratoza frictionala• -Stomatita nicotinica• -Cheilita solara
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continuare• 3 Alte leziuni albe• -Leucoplazia idiopatica• -Limba paroasa• -Limba geografica• - Lichenul plan
• 4 Leziuni neepiteliale• -Candidozele• -Fibroza submucoasa
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Leziuni reactive
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Leziuni reactive• Hiperplazia frictionala(keratoza trumatica)
• Ingrosare a mucoasei bucale(hiperkeratoza) relationata cu o iritatie locala care dupa eliminarea cauzei
• Se asociaza cu microtraumatismele de lunga durata produse de resturi radiculare cariidentare cu margini ascutite automuscarea repetata a mucoasei jugale sau a buzelor
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Hiperkeratoza frictionala
• V
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Stomatita nicotinica
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Stomatita nicotinica
• Este o afectiune reactionala a mucoasei orale cu predilectie a boltii palatide .
• Este determinata de actiunea prelungita iritanta a substantelor chimice si a caldurii rezultate prin arderea tutunuli.
• Apare in special la persoane de virsta medie si la batrini
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Clinic
• Eritem difuz al mucoasei orale si palatului dur
• Ulterior prin hipercheratinizarea epiteliului mucoasa se ingroasa capatind o tenta alb-gri sau alb-cenusie
• Pe suprafata keratinizata apar puncte rosii de 1-2mm—Sunt orificii dilatate si inflamate le glandelor salivare accesorii
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Leziuni ale mucoasei bucale asocite cu fumatul
• Cancer al cavitatii bucale -- 80% din cei cu cancer oral sunt fumatori:
• Leucoplazia- circa 80% din pacienti sunt fumator• Lichenul plan• Eritroplazia• Lupusul eitematos• Stomatita nicotinica• Alte afectiuni
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Cheilita actinica
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Cheilita actinica (solara)• Este o leziune cu potential de malignizare ce
appare in special pe buza inferioara• Se intilneste exclusiv la rasa alba predominant la
barbati care-si desfasoara activitatea i aer liber timp indelungat.
• Apare dupa virsta de 40ani• Hisologic: atrofia epiteliului alternind cu zone
hiperplazice cu orto sau hiperkeratoza,degradarea colagenului subepitelial sicresterea fibrelor de elastina
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Clinic• Debut: keratinizare ce sterge limita dintre
mucoasa si tegument• Stare:Apoi buza devine ferma,tumefiata,
zone albe cu margini nete sau difuze• Apar pe suprafata mucozala cruse• Uneori apar ulceratii care tradeaza :• - pierderea elasticitati• - transformare carcinomatoasa
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Cheilita actinica
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Tratament
• Preventiv:• Evitare expunerii prelungite la soare Aplicarea de agenti protectori( oxid de
zin, bioxid de titan cu efect de ecran protector)
Curativ Acid retinoic 5 fluorouracil -topic.