INBDE (Integrated National Board Dental Examination) Practice Exam

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What comprises the red complex bacteria?

P. gingivalis, T. forsythia, T. denticola
Fusobacterium, Prevotella, Campylobacter
P. intermedia, T. denticola, P. gingivalis
A.A, P. gingivalis, T. denticola

The correct answer is: P. gingivalis, T. forsythia, T. denticola

The red complex bacteria are a group of periodontal pathogens that have been strongly associated with periodontal disease. This group includes Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola. These particular bacteria have been found to be closely related to the progression and severity of periodontitis. Therefore, option A is the correct answer as it lists all three members of the red complex bacteria group. Options B, C, and D list combinations of bacteria that are not part of the red complex group and do not comprise the key pathogens associated with periodontal disease.