Implants · single question
Which bacteria are predominantly implicated in peri-implantitis?
Show answer and explanation
Correct answer: B. Obligate (strict) anaerobes
- A. Incorrect. Facultative anaerobes dominate early supragingival/healthy biofilm, not the established peri-implantitis flora.
- B. Correct. Peri-implantitis (like periodontitis) is associated with gram-negative OBLIGATE anaerobes in the deep, oxygen-poor sulcus.
- C. Incorrect. Strict aerobes are not the predominant pathogens in the anaerobic peri-implant pocket.