©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
MN Dental Assistant Licensure Exam
Questions And Answers| Already Graded A+|
Latest Update.
What is a coronal polish? - Answer✔polishing of the coronal portion of the tooth
what is the difference between a coronal polish and a oral prophylaxis? - Answer✔Coronal
polish: only the coronal portion of the tooth and the DA can do
Oral Prophy: is the whole cleaning and debridement of calc. This is done by the DDS and DH
What is the purpose of selective polishing? - Answer✔Procedure in which only those teeth or
surfaces with stain are polished.
The basic principle of selective polishing is that teeth should not be polished unless it is
necessary.
What is extrinsic stain? - Answer✔Stain that occurs on the outside of teeth and can be
removed;
Black stain, Tobacco stain, brown or yellow stain, green stain, dental plaque agents, food and
drink, nysmyths membrane (tooth eruption)
what is intrinsic stain? - Answer✔stain that occurs on the inside of teeth and cannot be
removed;
Pulpless teeth, tetracycline, dental fluorosis, imperfect tooth development, silver amalgam,
other systemic causes
Which is the most common technique for stain removal? - Answer✔Rubber cup Polishing;
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
Silex, superfine silex, fine pumice, zirconium silicate, chalk, commercial premixed, fluoride
prophy paste
extra corse, corse, medium, fine, extra fine
Which type of grasp is used to hold hand piece? - Answer✔Pen grasp
what is the purpose of a fulcrum? - Answer✔Provide stability and allows movement of the wrist
and forearm to decrease fatigue.
what precaution should be taken when esthetic type - restorations are polished? -
Answer✔esthetic & porceline restorations should be polished first. Then there remaining teeth
may be polished with the use of appropriate methods for any stain present
in which direction should the polishing stroke move? - Answer✔begin with the distal surface of
the most posterior tooth in the quadrant, work forward toward the anterior. The stroke should
be from the gingival third toward the incisal third of the tooth
what damage can rest from use of the prophy cup at high speed? - Answer✔higher speeds
produce frictional heat that can damage the tooth and burn the gingiva
how should the pts. head be positioned for access to the max and man arch? - Answer✔max:
pts. head with chin up
man: pts. head so the lower jaw is parallel to the floor when mouth is open
Why are topical anesthetics used in dentistry? - Answer✔to provide a numbing effect in a
specific area where an injection is to take place
topical medications are supplied as? how long applied for? - Answer✔gels
liquids
sprays
patches
Min = 15 - 30 seconds
Max = 1 - 2 minutes
What is local anesthesia? - Answer✔-Loss of sensation by the prevention of both generation
and conduction of nerve impulse.
-loss of sensation without loss of consciousness
2
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
What is added to a local anesthetic to prolong its effect? - Answer✔Vasoconstrictor : combined
with anesthetic to slowdown the uptake of an anesthetic agent into the bloodstream and
increases the duration of action
epinephrine, levonordefrin, neo-cobefrin
what are the 2 chemical groups within anesthetics? - Answer✔Ester: Primarily in topical
(metabolized in plasma)
Amide: Anesthetics (metabolized in liver)
Contraindications for the use of a Vasoconstrictor on these types of pts.? -
Answer✔Cardio/Heart disease: DONT use vasoconstrictor on these types of pts.
angina, myocardial infarction, hypertension
What are the Injection Techniques? - Answer✔The location and the innervation of the tooth or
teeth to be anesthetized will be determined where topical anesthetic is placed and type of
injection given
Bone structure allows anesthetic solution to diffuse through the bone and reach the apices of
the teeth in a different manner - Answer✔maxillary
anesthesia in palatal area may be necessary for procedures that involve the soft tissue of the
palate - Answer✔palatal
Because of dense compact bone, anesthesia doesn't diffuse well. Therefore block anesthesia is
the type of injection used. Injected by the nerve, entire nerve branch is numb. -
Answer✔Mandibular
alternative technique involves injection of anesthetic solution under pressure directly into the
periodontel ligament and surrounding tissue - Answer✔Periodontal ligament
what is the purpose of fluoride? - Answer✔helps prevent cavities
what are two routes or means by which the body receives fluoride? - Answer✔Systemic: Is
ingested in water, food, beverages, or supplements
- obsorbed through the intestines and brought the blood stream where it is needed
Topical: Is applied in direct contact with the teeth through the use of fluoridated tooth paste,
fluoride mouth wash, rinses, and topical applications of rinses, gels, foams, & varnishes
3
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
what is the name of the dental condition that results from too much fluoride? -
Answer✔Fluorosis: Excessive fluoride during tooth development
what precautions are necessary for children who use fluoridated tooth paste? - Answer✔Adult
supervision is necessary during child brushing teeth, and they should be instructed to not
swallow the tooth paste
what helps with fluoride poisoning? - Answer✔MILK
What is the function of a periodontal surgical dressing? (perio pack) - Answer✔Serves as a
bandage over the surgical site
-hold flaps in place
-protect newly forming tissue
-minimize post-op pain, infection and gemmorage
-protect surgical site from trauma during eating and drinking
-support mobile teeth during healing process
what materials are most commonly used in periodontal dressing? - Answer✔Zinc-Oxide
Eugenol (ZOE)
Non-Eugenol
What is Zinc Oxide Eugenol dressing? - Answer✔slow setting time makes for a longer working
time. Supplied as power and liquid - can be mixed before hand and frozen for future, sets to
firm and heavy consistency for good support and protection. Some pts. are allergic to eugenol
and may experience redness and burning in area of dressing
What is Non Eugenol Dressing? - Answer✔Most widely used, cannot mix ahead of time, can
alter setting time with cool or warm water, supplied in 2 tubes - base and accelerator - mix for
45 seconds, roll into cylinder and small triangles for inter proximal spaces, press with index and
thumb
What is post op for perio pack? - Answer✔Expect swelling and some discomfort, ice on and off
in 20 min increments, limit activities to a minimum exertion for a few days, no hot bevs. or
foods. soft diet, no spicy, do not rinse for 24 hours, if spot bleeding does not subside - apply
pressure with gauze for 20 mins - call office
How to remove Perio Pack? - Answer✔-Removed 7 to 10 days after placement
-Gently insert the spoon excavator under the margin
-use lateral pressure to pry the dressing gently away from tissue
-if sutures are embedded in the dressing material, cut the suture material free. Remove sutures
gently from tissue
4
MN Dental Assistant Licensure Exam
Questions And Answers| Already Graded A+|
Latest Update.
What is a coronal polish? - Answer✔polishing of the coronal portion of the tooth
what is the difference between a coronal polish and a oral prophylaxis? - Answer✔Coronal
polish: only the coronal portion of the tooth and the DA can do
Oral Prophy: is the whole cleaning and debridement of calc. This is done by the DDS and DH
What is the purpose of selective polishing? - Answer✔Procedure in which only those teeth or
surfaces with stain are polished.
The basic principle of selective polishing is that teeth should not be polished unless it is
necessary.
What is extrinsic stain? - Answer✔Stain that occurs on the outside of teeth and can be
removed;
Black stain, Tobacco stain, brown or yellow stain, green stain, dental plaque agents, food and
drink, nysmyths membrane (tooth eruption)
what is intrinsic stain? - Answer✔stain that occurs on the inside of teeth and cannot be
removed;
Pulpless teeth, tetracycline, dental fluorosis, imperfect tooth development, silver amalgam,
other systemic causes
Which is the most common technique for stain removal? - Answer✔Rubber cup Polishing;
1
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
Silex, superfine silex, fine pumice, zirconium silicate, chalk, commercial premixed, fluoride
prophy paste
extra corse, corse, medium, fine, extra fine
Which type of grasp is used to hold hand piece? - Answer✔Pen grasp
what is the purpose of a fulcrum? - Answer✔Provide stability and allows movement of the wrist
and forearm to decrease fatigue.
what precaution should be taken when esthetic type - restorations are polished? -
Answer✔esthetic & porceline restorations should be polished first. Then there remaining teeth
may be polished with the use of appropriate methods for any stain present
in which direction should the polishing stroke move? - Answer✔begin with the distal surface of
the most posterior tooth in the quadrant, work forward toward the anterior. The stroke should
be from the gingival third toward the incisal third of the tooth
what damage can rest from use of the prophy cup at high speed? - Answer✔higher speeds
produce frictional heat that can damage the tooth and burn the gingiva
how should the pts. head be positioned for access to the max and man arch? - Answer✔max:
pts. head with chin up
man: pts. head so the lower jaw is parallel to the floor when mouth is open
Why are topical anesthetics used in dentistry? - Answer✔to provide a numbing effect in a
specific area where an injection is to take place
topical medications are supplied as? how long applied for? - Answer✔gels
liquids
sprays
patches
Min = 15 - 30 seconds
Max = 1 - 2 minutes
What is local anesthesia? - Answer✔-Loss of sensation by the prevention of both generation
and conduction of nerve impulse.
-loss of sensation without loss of consciousness
2
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
What is added to a local anesthetic to prolong its effect? - Answer✔Vasoconstrictor : combined
with anesthetic to slowdown the uptake of an anesthetic agent into the bloodstream and
increases the duration of action
epinephrine, levonordefrin, neo-cobefrin
what are the 2 chemical groups within anesthetics? - Answer✔Ester: Primarily in topical
(metabolized in plasma)
Amide: Anesthetics (metabolized in liver)
Contraindications for the use of a Vasoconstrictor on these types of pts.? -
Answer✔Cardio/Heart disease: DONT use vasoconstrictor on these types of pts.
angina, myocardial infarction, hypertension
What are the Injection Techniques? - Answer✔The location and the innervation of the tooth or
teeth to be anesthetized will be determined where topical anesthetic is placed and type of
injection given
Bone structure allows anesthetic solution to diffuse through the bone and reach the apices of
the teeth in a different manner - Answer✔maxillary
anesthesia in palatal area may be necessary for procedures that involve the soft tissue of the
palate - Answer✔palatal
Because of dense compact bone, anesthesia doesn't diffuse well. Therefore block anesthesia is
the type of injection used. Injected by the nerve, entire nerve branch is numb. -
Answer✔Mandibular
alternative technique involves injection of anesthetic solution under pressure directly into the
periodontel ligament and surrounding tissue - Answer✔Periodontal ligament
what is the purpose of fluoride? - Answer✔helps prevent cavities
what are two routes or means by which the body receives fluoride? - Answer✔Systemic: Is
ingested in water, food, beverages, or supplements
- obsorbed through the intestines and brought the blood stream where it is needed
Topical: Is applied in direct contact with the teeth through the use of fluoridated tooth paste,
fluoride mouth wash, rinses, and topical applications of rinses, gels, foams, & varnishes
3
, ©FYNDLAY 2024/2025 ALL RIGHTS RESERVED 11:29AM. A+
what is the name of the dental condition that results from too much fluoride? -
Answer✔Fluorosis: Excessive fluoride during tooth development
what precautions are necessary for children who use fluoridated tooth paste? - Answer✔Adult
supervision is necessary during child brushing teeth, and they should be instructed to not
swallow the tooth paste
what helps with fluoride poisoning? - Answer✔MILK
What is the function of a periodontal surgical dressing? (perio pack) - Answer✔Serves as a
bandage over the surgical site
-hold flaps in place
-protect newly forming tissue
-minimize post-op pain, infection and gemmorage
-protect surgical site from trauma during eating and drinking
-support mobile teeth during healing process
what materials are most commonly used in periodontal dressing? - Answer✔Zinc-Oxide
Eugenol (ZOE)
Non-Eugenol
What is Zinc Oxide Eugenol dressing? - Answer✔slow setting time makes for a longer working
time. Supplied as power and liquid - can be mixed before hand and frozen for future, sets to
firm and heavy consistency for good support and protection. Some pts. are allergic to eugenol
and may experience redness and burning in area of dressing
What is Non Eugenol Dressing? - Answer✔Most widely used, cannot mix ahead of time, can
alter setting time with cool or warm water, supplied in 2 tubes - base and accelerator - mix for
45 seconds, roll into cylinder and small triangles for inter proximal spaces, press with index and
thumb
What is post op for perio pack? - Answer✔Expect swelling and some discomfort, ice on and off
in 20 min increments, limit activities to a minimum exertion for a few days, no hot bevs. or
foods. soft diet, no spicy, do not rinse for 24 hours, if spot bleeding does not subside - apply
pressure with gauze for 20 mins - call office
How to remove Perio Pack? - Answer✔-Removed 7 to 10 days after placement
-Gently insert the spoon excavator under the margin
-use lateral pressure to pry the dressing gently away from tissue
-if sutures are embedded in the dressing material, cut the suture material free. Remove sutures
gently from tissue
4
