Brasil
The bacteria of the oral cavity are the major etiological agentes responsible by pulp alterations into root canal of human teeth. The bacterial relationships and the pulp local conditions supply a Strong envirof oanamerombioesis nwhtere the obligate anaerobic bacteria are the predominante members. The correlation of these bacterial species with different clinical situations, such as, presence of exsudate, malodour and periapical radioluscence is showed and discussed. The purpose of this study is present a review of literature about the participation of anaerobic bacteria in root canals of human teeth, under several clinicals situations. The anaerobic bacteria more frequently isolated by authors discussed here were: Black-Pigmented Anaerobic Rods (BPAR), Peptostreptococcus micros, Fusobacterium nucleatum, Streptococcus sp., Actinomyces israeliiamong others. In general, the BPAR showed the highest percentage of isolation in endodontics infections
As bactérias da cavidade bucal são os principais agentes etiológicos responsáveis pelas alterações pulpares nos canais radiculares de dentes humanos. As inter-relações bacterianas e as condições locais da polpa favorecem um ambiente de anaerobiose, onde predominam bactérias anaeróbias obrigatórias. A correlação dessas espécies bacterianas com situações clinicas diversas, tais como, presença de exsudato purulento, odor fétido e radiolucência periapical é apresentada e discutida.
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