NATIONAL BOARD DENTAL HYGIENE
CERTIFICATION PACKAGE 2026
QUESTIONS WITH ANSWERS GUARANTEED
PASS
⩥ The bio-hazard waste or regulated true or false? Answer: True
⩥ When should we change our mask? Answer: When it becomes wet or
soiled with every patient. That includes your fluids as well.
⩥ What is the purpose of PPE? Answer: Is to minimize the exposure to
Aerosol, Spatter, Direct transmission, and Indirect transmission (ASDI)
⩥ Do disinfectants kill spores? Answer: NO
⩥ What are some types of disinfectants? Answer: Chlorine-based
compounds, iodophors, phenols, quaternary compounds
⩥ What are some bad qualities of chlorine-based compounds? Answer:
corrosive to metals and strong odor
⩥ What are some bad qualities of phenols? Answer: may leave a film or
residue on surfaces
,⩥ What are some bad qualities of iodophors? Answer: can discolor some
surfaces yellow
⩥ What are some bad qualities of quaternary compounds? Answer: not
corrosive, but have a lower kill spectrum
⩥ What would be some good qualities of disinfectants? Answer: rapid,
broad spectrum antimicrobial, bacteriocidal, fungicidal, tuberculocidal,
virucidal, odorless, easy to use, fast acting, economical, residual effect
which it continues to work after it dries, not toxic to touch or inhalation,
EPA registered, and disinfects and cleans.
⩥ Is a spatter invisible to the eye? Answer: NO, can see it when airborne
⩥ Is aerosol invisible to the eye? Answer: yes, remain in the air for a
while
⩥ What sheet provides an employee with information regarding the
hazards of chemicals utilized in the office and how to protect themself?
Answer: MSDS (Material Safety Data Sheet)
⩥ What disinfectant should not be used as a surface disinfectant in the
office and why? Answer: Glutaraldehydes, toxic effects of fumes; also
corrosive
, ⩥ What kind of disinfectants are used in the dental office? Answer:
Intermediate
⩥ What are some methods of sterilization? Answer: Chemical, Dry, and
Steam
⩥ During chemical sterilization, how long at what degree and pressure
are used? Answer: 20 min @ 270 degree F @ 20-40 lbs psi
⩥ During Dry sterilization, how long at what degree are used? Answer:
60-120 min @ 320 degree F
⩥ During Steam sterilization, how long at what degree and pressure are
used? Answer: 20-30 min @ 250 degree F @ 15-30lb psi
⩥ What method of sterilization involves the least temperature? Answer:
Steam at 250 degree F
⩥ What are some considerations when using the chemical method?
Answer: ventilation is necessary, may damage rubber and plastic items
CERTIFICATION PACKAGE 2026
QUESTIONS WITH ANSWERS GUARANTEED
PASS
⩥ The bio-hazard waste or regulated true or false? Answer: True
⩥ When should we change our mask? Answer: When it becomes wet or
soiled with every patient. That includes your fluids as well.
⩥ What is the purpose of PPE? Answer: Is to minimize the exposure to
Aerosol, Spatter, Direct transmission, and Indirect transmission (ASDI)
⩥ Do disinfectants kill spores? Answer: NO
⩥ What are some types of disinfectants? Answer: Chlorine-based
compounds, iodophors, phenols, quaternary compounds
⩥ What are some bad qualities of chlorine-based compounds? Answer:
corrosive to metals and strong odor
⩥ What are some bad qualities of phenols? Answer: may leave a film or
residue on surfaces
,⩥ What are some bad qualities of iodophors? Answer: can discolor some
surfaces yellow
⩥ What are some bad qualities of quaternary compounds? Answer: not
corrosive, but have a lower kill spectrum
⩥ What would be some good qualities of disinfectants? Answer: rapid,
broad spectrum antimicrobial, bacteriocidal, fungicidal, tuberculocidal,
virucidal, odorless, easy to use, fast acting, economical, residual effect
which it continues to work after it dries, not toxic to touch or inhalation,
EPA registered, and disinfects and cleans.
⩥ Is a spatter invisible to the eye? Answer: NO, can see it when airborne
⩥ Is aerosol invisible to the eye? Answer: yes, remain in the air for a
while
⩥ What sheet provides an employee with information regarding the
hazards of chemicals utilized in the office and how to protect themself?
Answer: MSDS (Material Safety Data Sheet)
⩥ What disinfectant should not be used as a surface disinfectant in the
office and why? Answer: Glutaraldehydes, toxic effects of fumes; also
corrosive
, ⩥ What kind of disinfectants are used in the dental office? Answer:
Intermediate
⩥ What are some methods of sterilization? Answer: Chemical, Dry, and
Steam
⩥ During chemical sterilization, how long at what degree and pressure
are used? Answer: 20 min @ 270 degree F @ 20-40 lbs psi
⩥ During Dry sterilization, how long at what degree are used? Answer:
60-120 min @ 320 degree F
⩥ During Steam sterilization, how long at what degree and pressure are
used? Answer: 20-30 min @ 250 degree F @ 15-30lb psi
⩥ What method of sterilization involves the least temperature? Answer:
Steam at 250 degree F
⩥ What are some considerations when using the chemical method?
Answer: ventilation is necessary, may damage rubber and plastic items
