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Stomatos ; 11(21): 21-26, jul.-dez. 2005. ilus
Article in Portuguese | LILACS, BBO | ID: lil-542147

ABSTRACT

Verificou-se a presença ou ausência microbiana, através da microscopia eletrônica de varredura(MEV), no sistema de canais e periápice de dois dentes recém extraídos. Um dos dentes apresentavavitalidade pulpar, e o outro, necrose com lesão periapical. Inferiu-se que no dente vital não haviamicrorganismos. No dente necrosado, comprovou-se a presença microbiana na luz do canal principal enos túbulos dentinários; além de biofilme periapical e áreas de reabsorção dentária. Deduziu-se que, emdentes necróticos com lesão, a destruição óssea, as crateras reabsortivas no dente e o biofilme bacterianopodem inviabilizar um adequado saneamento do sistema de canais.


The authors check the microbial presence or absence through the scanning electron microscope(SEM) in the root canal system and periapical region of two extracted teeth. On of these has presented pulp vitality and another one has presented pulp necrosis and periapical lesion. In the pulp vital tooththere wasn’t any presence of microorganisms. In the tooth with pulp necrosis and periapical lesions therewas the presence of microrganisms in the main canal light as in the dentinal tubules; and there was alsothe presence of periapical biofilm and areas of resorption in the tooth. In the teeth with pulp necrosis theosseous destruction, crater of resorption in the tooth and the microbial biofilm are able to impede theadequate cleaning of canal system.


Subject(s)
Dental Pulp Cavity , Dental Pulp Necrosis , Dental Pulp , Tooth Extraction , Microscopy, Electron, Scanning
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