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 intoz eyes,z whichz canz causez eyestrain.
Whenz usingz PPE,z whatz physicalz limitationsz mustz thez userz consider?z -z CORRECTz ANSWERz -
Vision,z depthz perception,z hearing,z dexterity,z reflexes,z weight,z andz reach
,z
Whenz isz az developingz fetusz mostz susceptiblez toz environmentalz hazards?z -
CORRECTz ANSWERz -Firstz trimester
Whatz typez ofz earz protectionz providesz lessz protectionz thanz properlyz fittedz earz plugs?z -
CORRECTz ANSWERz -Earmuffs
Whenz shouldz personnelz receivez hazardousz materialz training?z -z CORRECTz ANSWERz -
Uponz initialz assignmentz andz wheneverz az newz materialz isz introducedz toz thez laboratory
Asz az dentalz laboratoryz technician,z whatz arez thez commonz infectiousz agentsz youz mayz encount
er?z -z CORRECTz ANSWERz -Bacteria,z fungi,z protozoa,z andz viruses.
Whatz arez thez twoz categoriesz ofz fungi?z -z CORRECTz ANSWERz -Yeastsz andz molds.
Listz thez sixz interrelatedz linksz ofz thez chainz ofz infectionz -z CORRECTz ANSWERz -
(1)z Portalz ofz entry.z (2)z Susceptiblez host.z (3)z Infectiousz agent.z (4)z Reservoir.z (5)z Portalz ofz exit.
(6)z Modez ofz transmission
Whilez reviewingz thez chainz ofz infection,z whatz arez thez transmissionz modesz forz pathogens?z -
CORRECTz ANSWERz -Contact,z droplet,z vehicle,z airborne,z andz vectors
Wherez isz thez mostz likelyz placez youz canz breakz thez chainz ofz infection?z -z CORRECTz ANSWERz -
Betweenz thez portalz ofz exitz ofz anz infectedz hostz andz thez portalz ofz entryz ofz anz uninfectedz host
Whenz treatingz az patientz withz AIDS,z whatz isz thez bestz defensez forz preventingz transmissionz of
thez disease?z -z CORRECTz ANSWERz -
Thez biggestz problemz ofz handlingz az casez isz notz knowingz ifz it'sz contaminatedz orz not.z Yourz bes
tz defensez isz toz usez properz infectionz controlz proceduresz onz everyz case.
,z
Whatz arez thez factorsz contributingz toz nosocomialz infections?z -z CORRECTz ANSWERz -
Patientz condition,z typez ofz treatmentz andz therapy,z exposure,z andz employeez carelessness
Whatz isz thez single,z mostz effectivez personalz hygienez practicez inz stoppingz diseasez transmission
? -z CORRECTz ANSWERz -Handwashing
Whatz arez thez physicalz barriersz ofz isolationz fundamentals?z -z CORRECTz ANSWERz -
Thez unit,z masks,z gloves,z eyez protection,z andz equipment
Whatz arez thez threez typesz ofz transmission-basedz precautions?z -z CORRECTz ANSWERz -
Airborne,z droplet,z andz contactz transmission.
Whatz isz thez firstz stepz inz performingz az taskz safely?z -z CORRECTz ANSWERz -Planning.
Whenz usingz az knife,z youz shouldz -z CORRECTz ANSWERz -cutz awayz fromz yourself
Whenz usingz acids,z youz shouldz workz nearz az sinkz andz eyewashz stationz andz havez whatz neutrali
zerz easilyz availablez -z CORRECTz ANSWERz -Bakingz soda
Painz andz irritationz inz whichz areaz ofz thez eyez usuallyz indicatesz thez presencez ofz az foreignz subst
ance?z -z CORRECTz ANSWERz -Conjunctiva
Whichz organz hasz az tendencyz toz collectz toxicz materialsz overz az longz periodz ofz time?z -
CORRECTz ANSWERz -Kidney
Extremelyz smallz dustz particlesz canz remainz airbornez -z CORRECTz ANSWERz -upz toz 10z 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 intoz eyes,z whichz canz causez eyestrain.
Whenz usingz PPE,z whatz physicalz limitationsz mustz thez userz consider?z -z CORRECTz ANSWERz -
Vision,z depthz perception,z hearing,z dexterity,z reflexes,z weight,z andz reach
,z
Whenz isz az developingz fetusz mostz susceptiblez toz environmentalz hazards?z -
CORRECTz ANSWERz -Firstz trimester
Whatz typez ofz earz protectionz providesz lessz protectionz thanz properlyz fittedz earz plugs?z -
CORRECTz ANSWERz -Earmuffs
Whenz shouldz personnelz receivez hazardousz materialz training?z -z CORRECTz ANSWERz -
Uponz initialz assignmentz andz wheneverz az newz materialz isz introducedz toz thez laboratory
Asz az dentalz laboratoryz technician,z whatz arez thez commonz infectiousz agentsz youz mayz encount
er?z -z CORRECTz ANSWERz -Bacteria,z fungi,z protozoa,z andz viruses.
Whatz arez thez twoz categoriesz ofz fungi?z -z CORRECTz ANSWERz -Yeastsz andz molds.
Listz thez sixz interrelatedz linksz ofz thez chainz ofz infectionz -z CORRECTz ANSWERz -
(1)z Portalz ofz entry.z (2)z Susceptiblez host.z (3)z Infectiousz agent.z (4)z Reservoir.z (5)z Portalz ofz exit.
(6)z Modez ofz transmission
Whilez reviewingz thez chainz ofz infection,z whatz arez thez transmissionz modesz forz pathogens?z -
CORRECTz ANSWERz -Contact,z droplet,z vehicle,z airborne,z andz vectors
Wherez isz thez mostz likelyz placez youz canz breakz thez chainz ofz infection?z -z CORRECTz ANSWERz -
Betweenz thez portalz ofz exitz ofz anz infectedz hostz andz thez portalz ofz entryz ofz anz uninfectedz host
Whenz treatingz az patientz withz AIDS,z whatz isz thez bestz defensez forz preventingz transmissionz of
thez disease?z -z CORRECTz ANSWERz -
Thez biggestz problemz ofz handlingz az casez isz notz knowingz ifz it'sz contaminatedz orz not.z Yourz bes
tz defensez isz toz usez properz infectionz controlz proceduresz onz everyz case.
,z
Whatz arez thez factorsz contributingz toz nosocomialz infections?z -z CORRECTz ANSWERz -
Patientz condition,z typez ofz treatmentz andz therapy,z exposure,z andz employeez carelessness
Whatz isz thez single,z mostz effectivez personalz hygienez practicez inz stoppingz diseasez transmission
? -z CORRECTz ANSWERz -Handwashing
Whatz arez thez physicalz barriersz ofz isolationz fundamentals?z -z CORRECTz ANSWERz -
Thez unit,z masks,z gloves,z eyez protection,z andz equipment
Whatz arez thez threez typesz ofz transmission-basedz precautions?z -z CORRECTz ANSWERz -
Airborne,z droplet,z andz contactz transmission.
Whatz isz thez firstz stepz inz performingz az taskz safely?z -z CORRECTz ANSWERz -Planning.
Whenz usingz az knife,z youz shouldz -z CORRECTz ANSWERz -cutz awayz fromz yourself
Whenz usingz acids,z youz shouldz workz nearz az sinkz andz eyewashz stationz andz havez whatz neutrali
zerz easilyz availablez -z CORRECTz ANSWERz -Bakingz soda
Painz andz irritationz inz whichz areaz ofz thez eyez usuallyz indicatesz thez presencez ofz az foreignz subst
ance?z -z CORRECTz ANSWERz -Conjunctiva
Whichz organz hasz az tendencyz toz collectz toxicz materialsz overz az longz periodz ofz time?z -
CORRECTz ANSWERz -Kidney
Extremelyz smallz dustz particlesz canz remainz airbornez -z CORRECTz ANSWERz -upz toz 10z hours
