INBDE (Integrated National Board Dental Examination) Practice Exam

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Which is preferred, bacteriostatic or bacteriocidal?

  1. Bacteriostatic

  2. Bacteriocidal

  3. Neither, both are equally effective

  4. Depends on the infection

The correct answer is: Bacteriocidal

Bacteriocidal agents are preferred over bacteriostatic agents because they directly kill the bacteria, leading to a quicker reduction in the bacterial population. Bacteriostatic agents, on the other hand, only inhibit bacterial growth without killing them, which may allow for potential regrowth if the agent is removed or their concentration falls below inhibitory levels. Therefore, in most clinical scenarios, bacteriocidal agents are more effective in treating infections.