Dental Assistant Licensure Exam MN
2021 Questions & Answers
After receiving ortho treatment, what is the most commonly used retainer? -
ANSWERHawley Retainer
When ortho bands and brackets are removed, what type of bur do you use? -
ANSWERFinishing bur
Which cement gives off fluoride? - ANSWERGlass ionomer
What does a disclosing agent help detect? - ANSWERPlaque
What can be used to place an arch wire? - ANSWERWeingart or Howe pliers
What kind of tray is used for anterior teeth?
A) Sectional
B) Quadrant
C) Full Arch
D) Half Arch - ANSWERA) Sectional
After administering N2O and obtaining post-operative vitals, how much variance from
pre-operative is considered acceptable? - ANSWERPulse- Within 10 beats
Blood Pressure- Within 10 for diastolic and systolic
Respirations- Within 5 breaths per minute
How long can sealant material be stored for? - ANSWER18-36 months at room
temperature
What is the most common cause of sealant failure? - ANSWERMoisture contamination
What is in sealant material that some people can be allergic to? - ANSWERAcrylic resin
What is the weakest and cheapest impression material? - ANSWERPlaster
Radiographic density is defined as? - ANSWERThe overall blackness or darkness of a
radiograph
The temperature of the Tungsten filament is affected by?
A) Impulses
B) Kilovoltage
C) Millampres
D) Time - ANSWERC) Millampres
, How much time do you have to mix Intermediate Restorative Material? - ANSWER1
minute
What is used to remove wire ligatures?
A) Explorer
B) Ortho Scaler
C) Hemostat
D) Ligature wire cutter - ANSWERLigature wire cutter
What is the purpose of cavity varnish? - ANSWERTo seal the tubules
What instrument would you use to remove subgingival calculus?
A) Explorer
B) Sickle Scaler
C) Curette
D) Chisel - ANSWERC) Curette
After curing a crown, a greasy residue appears? How do you clean it?
A) With water
B) Alcohol wipe
C) Prophy paste
D) With a rag wheel and pumice - ANSWERD) With a rag wheel and pumice
On ortho bands, what surface are the tubes located?
A) Lingual
B) Mesial
C) Distal
D) Facial - ANSWERD) Facial
Why would a temporary crown be purposefully removed? - ANSWERIf damage is being
caused to the tissue by it or if a permanent is getting placed.
The inferior alveolar nerve block is also known as? - ANSWERMandibular
You are working on 28 and want to perform a mental nerve block, where should topical
be placed? - ANSWERAnterior to the mental foramen, between the apices of the pre
molars (28 and 27)
To prevent choking or swallowing while doing fluoride trays, you should do what?
A) Keep a saliva ejector in the patient's mouth
B) Have the patient tilt their chin up
C) Have the patient tilt their head down
D) Use an HVE - ANSWERA) Keep a saliva ejector in the patient's mouth
What fluoride method should not be given to children under 3?
2021 Questions & Answers
After receiving ortho treatment, what is the most commonly used retainer? -
ANSWERHawley Retainer
When ortho bands and brackets are removed, what type of bur do you use? -
ANSWERFinishing bur
Which cement gives off fluoride? - ANSWERGlass ionomer
What does a disclosing agent help detect? - ANSWERPlaque
What can be used to place an arch wire? - ANSWERWeingart or Howe pliers
What kind of tray is used for anterior teeth?
A) Sectional
B) Quadrant
C) Full Arch
D) Half Arch - ANSWERA) Sectional
After administering N2O and obtaining post-operative vitals, how much variance from
pre-operative is considered acceptable? - ANSWERPulse- Within 10 beats
Blood Pressure- Within 10 for diastolic and systolic
Respirations- Within 5 breaths per minute
How long can sealant material be stored for? - ANSWER18-36 months at room
temperature
What is the most common cause of sealant failure? - ANSWERMoisture contamination
What is in sealant material that some people can be allergic to? - ANSWERAcrylic resin
What is the weakest and cheapest impression material? - ANSWERPlaster
Radiographic density is defined as? - ANSWERThe overall blackness or darkness of a
radiograph
The temperature of the Tungsten filament is affected by?
A) Impulses
B) Kilovoltage
C) Millampres
D) Time - ANSWERC) Millampres
, How much time do you have to mix Intermediate Restorative Material? - ANSWER1
minute
What is used to remove wire ligatures?
A) Explorer
B) Ortho Scaler
C) Hemostat
D) Ligature wire cutter - ANSWERLigature wire cutter
What is the purpose of cavity varnish? - ANSWERTo seal the tubules
What instrument would you use to remove subgingival calculus?
A) Explorer
B) Sickle Scaler
C) Curette
D) Chisel - ANSWERC) Curette
After curing a crown, a greasy residue appears? How do you clean it?
A) With water
B) Alcohol wipe
C) Prophy paste
D) With a rag wheel and pumice - ANSWERD) With a rag wheel and pumice
On ortho bands, what surface are the tubes located?
A) Lingual
B) Mesial
C) Distal
D) Facial - ANSWERD) Facial
Why would a temporary crown be purposefully removed? - ANSWERIf damage is being
caused to the tissue by it or if a permanent is getting placed.
The inferior alveolar nerve block is also known as? - ANSWERMandibular
You are working on 28 and want to perform a mental nerve block, where should topical
be placed? - ANSWERAnterior to the mental foramen, between the apices of the pre
molars (28 and 27)
To prevent choking or swallowing while doing fluoride trays, you should do what?
A) Keep a saliva ejector in the patient's mouth
B) Have the patient tilt their chin up
C) Have the patient tilt their head down
D) Use an HVE - ANSWERA) Keep a saliva ejector in the patient's mouth
What fluoride method should not be given to children under 3?
