Infection Control · single question
Which level in the hierarchy of hazard controls is the most difficult to implement in a dental practice?
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Correct answer: D. Substitution and elimination
- A. PPE (gloves, masks, eyewear) is widely available and straightforward to implement.
- B. Engineering controls (sharps containers, ventilation, autoclave) require investment but are well-established.
- C. Administrative controls (policies, training) require consistency but are feasible.
- D. Per OSHA's hierarchy of controls, elimination and substitution are at the TOP of the hierarchy (most effective) but also the HARDEST to implement. They require completely removing the hazard or replacing it with something safer — often impossible in dentistry (you cannot eliminate the drill or sharps).
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