4Y052 DENTAL LAB CDC QUESTIONS
WITH CORRECT ANSWERS 2026
What is the first step in safely performing laboratory tasks? - CORRECT ANSWER -Planning
When a fire occurs, you extinguish the fire by removing one of the three elements. What a
re the three elements of a fire? - CORRECT ANSWER -Fuel, O2, and heat
At a minimum, how wide should you arrange a walkway from furniture and equipment? -
CORRECT ANSWER -36 inches.
What are some examples of potential hazards in the laboratory? - CORRECT ANSWER -
Frayed wiring, loose connections, and improper grounding of electrical equipment
What are the types of burns you may encounter in the dental laboratory? -
CORRECT ANSWER -Thermal and chemical
What is the first indication of a foreign substance in the eye? - CORRECT ANSWER -
Pain and irritation of the conjunctiva and eyelids
What are the five major body systems affected by dental materials? - CORRECT ANSWER -
Integumentary, respiratory, nervous, digestive, and urinary
What size particles are emitted from dispersed smoke, aerosol, and fumes? -
CORRECT ANSWER -0.1 µm to 0.0001 µm
How long do the symptoms of MFF last? - CORRECT ANSWER -12 to 24 hours.
What are the types of dermatitis? - CORRECT ANSWER -Contact and allergic
,What are the symptoms of MMA overexposure? - CORRECT ANSWER -
Headache, dizziness, nausea, depression, drowsiness, low blood pressure, loss of coordinatio
n, and, in serious cases, unconsciousness.
How are the majority of pathogens transmitted? - CORRECT ANSWER -
Through blood and saliva.
What are the types of stress? - CORRECT ANSWER -Situational and developmental
What is the body's physical reaction to stress? - CORRECT ANSWER -
A heightened nervous system, increased muscle tension, and a release of adrenaline
What kinds of laboratory equipment commonly produce noise above 85 dB? -
CORRECT ANSWER -Air hoses, pneumatic chisels, high-
speed lathes, steam cleaners, and handpieces
What are the types of laboratory ventilation? - CORRECT ANSWER -General and exhaust
How high is the seat of your laboratory chair adjusted to provide maximum comfort and su
pport? - CORRECT ANSWER -
Chair height should be set to allow thighs to be parallel to the floor.
Why should a bench-top work surface be nonreflective? - CORRECT ANSWER -
To reduce light reflection intov eyes,v whichv canv causev eyestrain.
Whenv usingv PPE,v whatv physicalv limitationsv mustv thev userv consider?v -
v CORRECTv ANSWERv -
Vision,v depthv perception,v hearing,v dexterity,v reflexes,v weight,v andv reach
,v
Whenv isv av developingv fetusv mostv susceptiblev tov environmentalv hazards?v -
CORRECTv ANSWERv -Firstv trimester
Whatv typev ofv earv protectionv providesv lessv protectionv thanv properlyv fittedv earv plugs?v
-
CORRECTv ANSWERv -Earmuffs
Whenv shouldv personnelv receivev hazardousv materialv training?v -v CORRECTv ANSWERv -
Uponv initialv assignmentv andv wheneverv av newv materialv isv introducedv tov thev laboratory
Asv av dentalv laboratoryv technician,v whatv arev thev commonv infectiousv agentsv youv mayv encoun
t
er?v -v CORRECTv ANSWERv -Bacteria,v fungi,v protozoa,v andv viruses.
Whatv arev thev twov categoriesv ofv fungi?v -v CORRECTv ANSWERv -
Yeastsv andv molds.
Listv thev sixv interrelatedv linksv ofv thev chainv ofv infectionv -v CORRECTv ANSWERv -
(1)v Portalv ofv entry.v (2)v Susceptiblev host.v (3)v Infectiousv agent.v (4)v Reservoir.v (5)v Portalv ofv exit
.
(6)v Modev ofv transmission
Whilev reviewingv thev chainv ofv infection,v whatv arev thev transmissionv modesv forv pathogens?v
-
CORRECTv ANSWERv -Contact,v droplet,v vehicle,v airborne,v andv vectors
Wherev isv thev mostv likelyv placev youv canv breakv thev chainv ofv infection?v -v CORRECTv ANSWERv -
Betweenv thev portalv ofv exitv ofv anv infectedv hostv andv thev portalv ofv entryv ofv anv uninfectedv ho
st
Whenv treatingv av patientv withv AIDS,v whatv isv thev bestv defensev forv preventingv transmissionv o
f
the
Thevvdisease? -v CORRECT
biggestv vproblem ANSWERvva-v casev isv notv knowingv ifv it'sv contaminatedv orv not.v Yourv be
v ofvvhandling
s
tv defensev isv tov usev properv infectionv controlv proceduresv onv everyv case.
,v
Whatv arev thev factorsv contributingv tov nosocomialv infections?v -v CORRECTv ANSWERv -
Patientv condition,v typev ofv treatmentv andv therapy,v exposure,v andv employeev carelessness
Whatv isv thev single,v mostv effectivev personalv hygienev practicev inv stoppingv diseasev transmissio
n
? -v CORRECTv ANSWERv -Handwashing
Whatv arev thev physicalv barriersv ofv isolationv fundamentals?v -v CORRECTv ANSWERv -
Thev unit,v masks,v gloves,v eyev protection,v andv equipment
Whatv arev thev threev typesv ofv transmission-basedv precautions?v -v CORRECTv ANSWERv -
Airborne,v droplet,v andv contactv transmission.
Whatv isv thev firstv stepv inv performingv av taskv safely?v -v CORRECTv ANSWERv -
Planning.
Whenv usingv av knife,v youv shouldv -v CORRECTv ANSWERv -cutv awayv fromv yourself
Whenv usingv acids,v youv shouldv workv nearv av sinkv andv eyewashv stationv andv havev whatv neutral
i
zerv easilyv availablev -v CORRECTv ANSWERv -Bakingv soda
Painv andv irritationv inv whichv areav ofv thev eyev usuallyv indicatesv thev presencev ofv av foreignv subs
t
ance?v -v CORRECTv ANSWERv -Conjunctiva
Whichv organv hasv av tendencyv tov collectv toxicv materialsv overv av longv periodv ofv time?v
-
CORRECTv ANSWERv -Kidney
Extremelyv smallv dustv particlesv canv remainv airbornev -v CORRECTv ANSWERv -
upv tov 10v hours
WITH CORRECT ANSWERS 2026
What is the first step in safely performing laboratory tasks? - CORRECT ANSWER -Planning
When a fire occurs, you extinguish the fire by removing one of the three elements. What a
re the three elements of a fire? - CORRECT ANSWER -Fuel, O2, and heat
At a minimum, how wide should you arrange a walkway from furniture and equipment? -
CORRECT ANSWER -36 inches.
What are some examples of potential hazards in the laboratory? - CORRECT ANSWER -
Frayed wiring, loose connections, and improper grounding of electrical equipment
What are the types of burns you may encounter in the dental laboratory? -
CORRECT ANSWER -Thermal and chemical
What is the first indication of a foreign substance in the eye? - CORRECT ANSWER -
Pain and irritation of the conjunctiva and eyelids
What are the five major body systems affected by dental materials? - CORRECT ANSWER -
Integumentary, respiratory, nervous, digestive, and urinary
What size particles are emitted from dispersed smoke, aerosol, and fumes? -
CORRECT ANSWER -0.1 µm to 0.0001 µm
How long do the symptoms of MFF last? - CORRECT ANSWER -12 to 24 hours.
What are the types of dermatitis? - CORRECT ANSWER -Contact and allergic
,What are the symptoms of MMA overexposure? - CORRECT ANSWER -
Headache, dizziness, nausea, depression, drowsiness, low blood pressure, loss of coordinatio
n, and, in serious cases, unconsciousness.
How are the majority of pathogens transmitted? - CORRECT ANSWER -
Through blood and saliva.
What are the types of stress? - CORRECT ANSWER -Situational and developmental
What is the body's physical reaction to stress? - CORRECT ANSWER -
A heightened nervous system, increased muscle tension, and a release of adrenaline
What kinds of laboratory equipment commonly produce noise above 85 dB? -
CORRECT ANSWER -Air hoses, pneumatic chisels, high-
speed lathes, steam cleaners, and handpieces
What are the types of laboratory ventilation? - CORRECT ANSWER -General and exhaust
How high is the seat of your laboratory chair adjusted to provide maximum comfort and su
pport? - CORRECT ANSWER -
Chair height should be set to allow thighs to be parallel to the floor.
Why should a bench-top work surface be nonreflective? - CORRECT ANSWER -
To reduce light reflection intov eyes,v whichv canv causev eyestrain.
Whenv usingv PPE,v whatv physicalv limitationsv mustv thev userv consider?v -
v CORRECTv ANSWERv -
Vision,v depthv perception,v hearing,v dexterity,v reflexes,v weight,v andv reach
,v
Whenv isv av developingv fetusv mostv susceptiblev tov environmentalv hazards?v -
CORRECTv ANSWERv -Firstv trimester
Whatv typev ofv earv protectionv providesv lessv protectionv thanv properlyv fittedv earv plugs?v
-
CORRECTv ANSWERv -Earmuffs
Whenv shouldv personnelv receivev hazardousv materialv training?v -v CORRECTv ANSWERv -
Uponv initialv assignmentv andv wheneverv av newv materialv isv introducedv tov thev laboratory
Asv av dentalv laboratoryv technician,v whatv arev thev commonv infectiousv agentsv youv mayv encoun
t
er?v -v CORRECTv ANSWERv -Bacteria,v fungi,v protozoa,v andv viruses.
Whatv arev thev twov categoriesv ofv fungi?v -v CORRECTv ANSWERv -
Yeastsv andv molds.
Listv thev sixv interrelatedv linksv ofv thev chainv ofv infectionv -v CORRECTv ANSWERv -
(1)v Portalv ofv entry.v (2)v Susceptiblev host.v (3)v Infectiousv agent.v (4)v Reservoir.v (5)v Portalv ofv exit
.
(6)v Modev ofv transmission
Whilev reviewingv thev chainv ofv infection,v whatv arev thev transmissionv modesv forv pathogens?v
-
CORRECTv ANSWERv -Contact,v droplet,v vehicle,v airborne,v andv vectors
Wherev isv thev mostv likelyv placev youv canv breakv thev chainv ofv infection?v -v CORRECTv ANSWERv -
Betweenv thev portalv ofv exitv ofv anv infectedv hostv andv thev portalv ofv entryv ofv anv uninfectedv ho
st
Whenv treatingv av patientv withv AIDS,v whatv isv thev bestv defensev forv preventingv transmissionv o
f
the
Thevvdisease? -v CORRECT
biggestv vproblem ANSWERvva-v casev isv notv knowingv ifv it'sv contaminatedv orv not.v Yourv be
v ofvvhandling
s
tv defensev isv tov usev properv infectionv controlv proceduresv onv everyv case.
,v
Whatv arev thev factorsv contributingv tov nosocomialv infections?v -v CORRECTv ANSWERv -
Patientv condition,v typev ofv treatmentv andv therapy,v exposure,v andv employeev carelessness
Whatv isv thev single,v mostv effectivev personalv hygienev practicev inv stoppingv diseasev transmissio
n
? -v CORRECTv ANSWERv -Handwashing
Whatv arev thev physicalv barriersv ofv isolationv fundamentals?v -v CORRECTv ANSWERv -
Thev unit,v masks,v gloves,v eyev protection,v andv equipment
Whatv arev thev threev typesv ofv transmission-basedv precautions?v -v CORRECTv ANSWERv -
Airborne,v droplet,v andv contactv transmission.
Whatv isv thev firstv stepv inv performingv av taskv safely?v -v CORRECTv ANSWERv -
Planning.
Whenv usingv av knife,v youv shouldv -v CORRECTv ANSWERv -cutv awayv fromv yourself
Whenv usingv acids,v youv shouldv workv nearv av sinkv andv eyewashv stationv andv havev whatv neutral
i
zerv easilyv availablev -v CORRECTv ANSWERv -Bakingv soda
Painv andv irritationv inv whichv areav ofv thev eyev usuallyv indicatesv thev presencev ofv av foreignv subs
t
ance?v -v CORRECTv ANSWERv -Conjunctiva
Whichv organv hasv av tendencyv tov collectv toxicv materialsv overv av longv periodv ofv time?v
-
CORRECTv ANSWERv -Kidney
Extremelyv smallv dustv particlesv canv remainv airbornev -v CORRECTv ANSWERv -
upv tov 10v hours
