The following strains were used as positive controls: Aggregatibacter actinomycetemcomitans ATCC 29522, Porphyromonas gingivalis BAA-308, Prevotella intermedia ATCC 25611, Tannerella forsythia ATCC 43037 and Fusobacterium nucleatum ATCC 25586, and as negative control the Escherichia coli strain ATCC 47076.
Se utilizaron las siguientes cepas como controles positivo: Aggregatibacter actinomycetemcomitans ATCC 29522, Porphyromonas gingivalis BAA-308, Prevotella intermedia ATCC 25611, Tannerella forsythia ATCC 43037 y Fusobacterium nucleatum ATCC 25586 y como control negativo la cepa de Escherichia coli ATCC 47076.