Infection Control · single question
Which is the BEST surface disinfectant for smooth surfaces in the dental office?
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Correct answer: C. Phenol/phenolics
✓ C) Phenol/phenolics are the best disinfectants for smooth surfaces.
Phenolic compounds (e.g., Lysol concentrate, orthophenylphenol) are broad-spectrum intermediate-level disinfectants: effective against bacteria, mycobacteria, fungi, and most viruses on smooth, non-porous surfaces. They act by precipitating cell proteins and disrupting cell membranes. EPA-registered for use on countertops. NOTE: The PDF mentions both Lysol AND phenol — Lysol's active ingredient IS a phenolic compound. Alcohol is fast-acting but does NOT leave residual protection. Bleach is more corrosive. For smooth surfaces → phenolics/Lysol.
Phenolic compounds (e.g., Lysol concentrate, orthophenylphenol) are broad-spectrum intermediate-level disinfectants: effective against bacteria, mycobacteria, fungi, and most viruses on smooth, non-porous surfaces. They act by precipitating cell proteins and disrupting cell membranes. EPA-registered for use on countertops. NOTE: The PDF mentions both Lysol AND phenol — Lysol's active ingredient IS a phenolic compound. Alcohol is fast-acting but does NOT leave residual protection. Bleach is more corrosive. For smooth surfaces → phenolics/Lysol.
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