Infection Control · single question
Which item carries the LEAST risk of cross-infection (and is the least critical for sterilization)?
Show answer and explanation
Correct answer: D. Facebow
- A. A handpiece contacts mucosa and aerosolizes fluids — it is semicritical/critical and must be heat-sterilized.
- B. A bur contacts/penetrates tissue and is a critical item requiring sterilization.
- C. A blade penetrates tissue — a critical, single-use sharp.
- D. Correct. A facebow contacts intact skin/non-mucosal surfaces (a noncritical item), so it carries the lowest infection risk and needs only intermediate-level disinfection.
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