Dentists Should Not Reuse Face Masks: Infection Control Imperative

Single-use only. Dental procedures generate aerosols, splatter, and high microbial loads. Reusing masks compromises:

• Filtration Efficiency: Moisture degrades electrostatic charge; particles penetrate.
• Structural Integrity: Straps stretch, nose piece fatigues → gaps.
• Cross-Contamination: Outer surface harbors patient pathogens; donning/doffing transfers to wearer.
• Patient Safety: Aerosolized microbes from previous patient.
• Regulatory Compliance: CDC, OSHA, ADA, state dental boards mandate single-use for splash-generating procedures.
• Professional Trust: Visible reuse undermines confidence.

Best Practice

• New mask per patient (or per procedure if heavily soiled).
• N95/KN95 for aerosol-generating procedures (AGPs).
• Hand hygiene before/after glove and mask changes.
• Proper doffing technique (touch only straps).

Cost of masks ≪ cost of infection outbreak or license jeopardy.