INBDE (Integrated National Board Dental Examination) Practice Exam

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Study for the Integrated National Board Dental Examination with engaging quizzes and detailed multiple-choice questions. Each question comes with hints and explanations to ensure you grasp essential concepts. Prepare effectively for your dental career!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

Which bacteria is most commonly found on the tongue?

S. mutans
P. intermedia
S. salivarius
Actinomyces

The correct answer is: S. salivarius

S. salivarius is the correct answer because it is a common bacteria found on the tongue. Streptococcus salivarius is a gram-positive bacterium that naturally colonizes the oral cavity, including the tongue. It plays a role in maintaining oral health by competing with other bacteria for attachment sites and nutrients, thus helping to prevent the growth of harmful bacteria that could contribute to oral diseases. Options A, B, and D are not the most commonly found bacteria on the tongue. Streptococcus mutans (option A) is known for its role in the formation of dental caries. Porphyromonas intermedia (option B) is associated with periodontal diseases. Actinomyces (option D) is found in the oral cavity but is not as commonly associated with the tongue as S. salivarius.