NBDHE Clinical Dental Hygiene Questions and Answers
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Course
NBDHE
Institution
NBDHE
Disinfectants kill MOST pathogenic microbes, not?
Ans- spores
OSHA say no to what type of disinfectant due to toxic effect of fumes and
corrosive?
Ans- glutaraldehydes
Disadvantages to chlorine based compounds (disinfectants)
Ans- corrosive to metals, strong odor
Disadvantages to iodophors ...
NBDHE Clinical Dental
Hygiene Questions and
Answers
Disinfectants kill MOST pathogenic microbes, not?
Ans- spores
OSHA say no to what type of disinfectant due to toxic effect of fumes and
corrosive?
Ans- glutaraldehydes
Disadvantages to chlorine based compounds (disinfectants)
Ans- corrosive to metals, strong odor
Disadvantages to iodophors (disinfectants)
, Ans- can discolor some surfaces yellow
Disadvantages to phenols (water or alcohol based disinfectants)
Ans- may leave film or residue
Disadvantages to quaternary compounds (disinfectant)
Ans- not corrosive, lower kill spectrum, limited efficacy
What level of surface disinfectant is used in dental offices?
Ans- intermediate (must kill TB organisms)
Conditions for steam sterlization?
Ans- 250 degrees with 15 or 20 lbs psi for 30 min
Conditions for dry heat sterilization?
Ans- 340 degrees for 1 hour or 320 degrees for 2 hours
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