Safety & Infection Control Flashcards
7 cards from real CDC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety & Infection Control flashcards as text
Which respiratory protection device is required when grinding or polishing dental ceramics to prevent silica dust inhalation?
Answer: N95 respirator
An N95 respirator filters at least 95% of airborne particles including fine silica and ceramic dust generated during grinding.
What is the recommended method for handling sharp ceramic fragments in the dental lab to prevent injury?
Answer: Use forceps or tongs rather than fingers
Forceps or tongs should be used to handle sharp ceramic fragments to avoid lacerations and potential exposure to biohazardous material.
How should contaminated dental impressions and restorations be decontaminated before entering the dental laboratory?
Answer: Disinfect with an appropriate EPA-registered disinfectant at chairside
The ADA and CDC recommend that all laboratory items be disinfected chairside with an EPA-registered disinfectant before transport to the dental lab.
Which of the following is the correct order of donning personal protective equipment (PPE) in the dental laboratory?
Answer: Gown, mask, eye protection, gloves
The correct donning sequence is gown first, then mask or respirator, then eye protection, and finally gloves to maintain contamination control.
What type of ventilation system is most effective for controlling airborne ceramic dust in a dental laboratory?
Answer: Local exhaust ventilation at the point of dust generation
Local exhaust ventilation (LEV) captures dust directly at the source, providing superior protection compared to dilution ventilation methods.
Under OSHA's Bloodborne Pathogens Standard, dental laboratory technicians are categorized in which occupational exposure risk category?
Answer: Reasonably anticipated exposure to blood or OPIM
Dental lab technicians have reasonably anticipated contact with blood or other potentially infectious materials (OPIM) via contaminated prostheses and impressions.
What is the appropriate action if a dental ceramist sustains a needlestick or sharps injury during lab work?
Answer: Immediately wash the wound, report to supervisor, and seek medical evaluation
Immediate washing, prompt reporting, and medical evaluation are required under OSHA's Bloodborne Pathogens Standard following exposure incidents.