2025 QUESTIONS WITH ANSWERS RATED A+
✔✔One of the best ways to prevent the spread of microorganisms from one person to
another is by - ✔✔Hand washing with water and antimicrobial soap
✔✔Antimicrobial means - ✔✔Sterilization
Disinfection
Growth inhibitor
✔✔At a minimum, a______handwash should be done. - ✔✔30 seconds
✔✔The glove of a choice for working chair side is the_____ glove? - ✔✔Latex
✔✔After the procedure, gloves that were not torn or ripped should be - ✔✔Removed
and thrown away
✔✔Food-handler gloves are used in a dental procedure, - ✔✔when placed over latex
gloves to retrieve something inside a drawer
✔✔Utility gloves are used in a dental procedure, - ✔✔to clean the operatory
✔✔A mask is worn by dental team members to - ✔✔protect the mucous membranes of
the nose and mouth
✔✔The standards for wearing a mask include, - ✔✔Replacing it when it becomes moist
Never letting the mask dangle from one ear
Placing a new mask for each patient
✔✔Protective clothing worn during dental treatment includes - ✔✔High-neck and cuffed
wrist area
✔✔The physical removal of organic matter from surfaces or instruments is - ✔✔cleaning
✔✔Some products require as few as ______ to disinfect - ✔✔10 minutes
✔✔Some products require _______ of submersion to sterilize - ✔✔10 hours
✔✔The only way to verify the time requirement for a particular product is by -
✔✔reading the label
✔✔The disinfection level that kills some viruses and fungi and most bacterial
microorganisms is ______ level. - ✔✔Low
, ✔✔The disinfection level that destroys most , but not all, bacterial spores is______level.
- ✔✔High
✔✔The disinfection level that does not kill bacterial spores is ____ level. -
✔✔Intermediate
✔✔If during an immersion disinfection procedure an additional instrument is added to
the solution before the disinfection time is up, the - ✔✔Time must be started over for all
instruments
✔✔Sodium hypochlorite is - ✔✔Irritating to eyes and skin
Corrosive to metals
Unstable and must be mixed daily
✔✔Which disinfectant can stain light-colored vinyl or plastics? - ✔✔Iodophors
✔✔Which is true of isopropyl alcohol? - ✔✔It is not used as a disinfectant agent in a
dental office
✔✔An ultrasonic cleaner is preferred to hand scrubbing because it - ✔✔Uses sound
waves to reach all areas of the instruments
Uses a cavitation process
Is safer for the auxiliary
✔✔After instruments have been removed from the ultrasonic cleaner, they - ✔✔Should
be rinsed and dried
✔✔It is easier to _____ sterilization - ✔✔Achieve
✔✔A disadvantage of an ethylene oxide sterilization system is - ✔✔Requires ventilation
✔✔The hot bead sterilizer requires that burs and/or endodontic instruments be
immersed , - ✔✔20 to 30 seconds
✔✔The preferred sterilization method for instruments with surgical cutting edges is -
✔✔Dry heat
✔✔An autoclave sterilizes by using - ✔✔Steam under pressure
✔✔The autoclave takes ________ to sterilize. - ✔✔15 minutes at 350 degrees at 15 psi
✔✔A liquid chemical sterilizer requires ______ to sterilize. - ✔✔Room temperature for
10 hours