DASLE MN FINAL PAPER 2025/2026 QUESTIONS AND
ANSWERS RATED A+
✔✔When packing cord into the sulcus, it is important that the operator leave a tail on
the cord to ensure ease of removal. Ideally, this tail should be on the ______ surface of
the tooth.
A: distal
B: lingual
C: buccal
D: mesial - ✔✔C: buccal
✔✔When using the double cord technique, the larger cord is always placed first and
then the smaller cord is placed on top.
True
False - ✔✔FALSE
✔✔_______ is the most common type of gingival retraction used.
A: surgical (electrosurgery)
B: chemical (retraction paste)
C; chemo-mechanical (impregnated cord)
D: mechanical (unimpregnated cord) - ✔✔C; chemo-mechanical (impregnated cord)
✔✔In the State of Minnesota, an LDA can place nonsurgical retraction material, such as
a retraction cord, for gingival displacement under direct supervision.
True
False - ✔✔TRUE
✔✔After the cement has set, a scaler, spoon excavator, or explorer is used to carefully
remove the excess cement from the crown.
True
False - ✔✔TRUE
✔✔In the State of MN, an LDA can remove excess cement with hand instruments from
inlays, onlays, crowns, and bridges under indirect supervision.
True
False - ✔✔TRUE
✔✔The tip of the instrument is placed at the gingival edge of the cement and
overlapping, vertical strokes are used to remove the bulk of the material. After the bulk
of the material is removed, slight __________________ lateral pressure is applied to
remove the remaining cement.
A: lateral pressure
B: vertical pressure - ✔✔A: LATERAL
,✔✔Besides the ligature ties, what else may be used to tie in the arch wire to the
brackets?
A: glass ionomer cement
B: stainless steel bands
C: positioners
D: Elastics - ✔✔D: Elastics
✔✔That shape is the archwire initially indicated for correcting malaligned teeth?
A: rectangular
B: oval
C: square
D: round - ✔✔D: round
✔✔Impregnated retraction cord contains a buffered solution of 10% aluminum chloride
that helps in controlling bleeding and causes the desired provisional shrinkage of
tissues.
True
False - ✔✔TRUE
✔✔Match the types of gingival retraction below
___ Unimpregnated retraction cord
____ Retraction paste such as Traxodent
___ Electrosurgical procedures using a laser
1. Chemical Retraction
2. Mechanical Retraction
3. Surgical Retraction - ✔✔__2__Unimpregnated retraction cord
__1__Retraction paste such as Traxodent
__3__Electrosurgical procedures using a laser
✔✔Which cement is used in the cementation of ortho bands and brackets; adheres to
enamel, dentin, and metal; releases fluoride slowly?
A: ZOE
B: zinc phosphate
C: glass ionomer
D: polycarboxylate - ✔✔C: glass ionomer
✔✔Prior to the cementation of orthodontic bands, ________ need to be placed and left
in the patient mouth for up to 2 weeks to create space for the bands.
A: orthodontic separators
B:palatal expanders
C: ligature ties
D: arch wires - ✔✔A: orthodontic separators
, ✔✔Which of the following requires etching of the facial surface of the tooth?
A: placement of orthodontic brackets
B: placement of arch wires
C: placement of orthodontic bands
D: placement of vacuum formed retainers - ✔✔A: placement of orthodontic brackets
✔✔_____________ are a "power product" that will aid in correcting occlusal
relationships.
A: comfort tubing
B: Elastomeric Ties/Alastics
C: Elastics
D: Ligature ties - ✔✔C: Elastics
✔✔You are setting up for bonding of brackets, what orthodontic instrument will be used
for this procedure?
A: bite stick
B: Howe (110) pliers
C: ligature director
D: bracket placement tweezers - ✔✔D: bracket placement tweezers
✔✔The condition that created an opening if the anterior teeth when the posterior teeth
are closed is ________.
A: openbite
B; overjet
C: overbite
D: crossbite - ✔✔A: openbite
✔✔When assisting a dentist in cementation of orthodontic bands, which of the following
would NOT be needed in the tray setup.
A: band seater
B: preselected orthodontic bands
C: scaler
D: hemostat
E: contouring pliers
F: band pusher
G: basic setup - ✔✔D: hemostat
✔✔If an orthodontic patient does not maintain good oral hygiene, which of the following
may occur?
A: rampant decay
B: hypocalcification
C: periodontal disease
D: all of the above - ✔✔D: all of the above
ANSWERS RATED A+
✔✔When packing cord into the sulcus, it is important that the operator leave a tail on
the cord to ensure ease of removal. Ideally, this tail should be on the ______ surface of
the tooth.
A: distal
B: lingual
C: buccal
D: mesial - ✔✔C: buccal
✔✔When using the double cord technique, the larger cord is always placed first and
then the smaller cord is placed on top.
True
False - ✔✔FALSE
✔✔_______ is the most common type of gingival retraction used.
A: surgical (electrosurgery)
B: chemical (retraction paste)
C; chemo-mechanical (impregnated cord)
D: mechanical (unimpregnated cord) - ✔✔C; chemo-mechanical (impregnated cord)
✔✔In the State of Minnesota, an LDA can place nonsurgical retraction material, such as
a retraction cord, for gingival displacement under direct supervision.
True
False - ✔✔TRUE
✔✔After the cement has set, a scaler, spoon excavator, or explorer is used to carefully
remove the excess cement from the crown.
True
False - ✔✔TRUE
✔✔In the State of MN, an LDA can remove excess cement with hand instruments from
inlays, onlays, crowns, and bridges under indirect supervision.
True
False - ✔✔TRUE
✔✔The tip of the instrument is placed at the gingival edge of the cement and
overlapping, vertical strokes are used to remove the bulk of the material. After the bulk
of the material is removed, slight __________________ lateral pressure is applied to
remove the remaining cement.
A: lateral pressure
B: vertical pressure - ✔✔A: LATERAL
,✔✔Besides the ligature ties, what else may be used to tie in the arch wire to the
brackets?
A: glass ionomer cement
B: stainless steel bands
C: positioners
D: Elastics - ✔✔D: Elastics
✔✔That shape is the archwire initially indicated for correcting malaligned teeth?
A: rectangular
B: oval
C: square
D: round - ✔✔D: round
✔✔Impregnated retraction cord contains a buffered solution of 10% aluminum chloride
that helps in controlling bleeding and causes the desired provisional shrinkage of
tissues.
True
False - ✔✔TRUE
✔✔Match the types of gingival retraction below
___ Unimpregnated retraction cord
____ Retraction paste such as Traxodent
___ Electrosurgical procedures using a laser
1. Chemical Retraction
2. Mechanical Retraction
3. Surgical Retraction - ✔✔__2__Unimpregnated retraction cord
__1__Retraction paste such as Traxodent
__3__Electrosurgical procedures using a laser
✔✔Which cement is used in the cementation of ortho bands and brackets; adheres to
enamel, dentin, and metal; releases fluoride slowly?
A: ZOE
B: zinc phosphate
C: glass ionomer
D: polycarboxylate - ✔✔C: glass ionomer
✔✔Prior to the cementation of orthodontic bands, ________ need to be placed and left
in the patient mouth for up to 2 weeks to create space for the bands.
A: orthodontic separators
B:palatal expanders
C: ligature ties
D: arch wires - ✔✔A: orthodontic separators
, ✔✔Which of the following requires etching of the facial surface of the tooth?
A: placement of orthodontic brackets
B: placement of arch wires
C: placement of orthodontic bands
D: placement of vacuum formed retainers - ✔✔A: placement of orthodontic brackets
✔✔_____________ are a "power product" that will aid in correcting occlusal
relationships.
A: comfort tubing
B: Elastomeric Ties/Alastics
C: Elastics
D: Ligature ties - ✔✔C: Elastics
✔✔You are setting up for bonding of brackets, what orthodontic instrument will be used
for this procedure?
A: bite stick
B: Howe (110) pliers
C: ligature director
D: bracket placement tweezers - ✔✔D: bracket placement tweezers
✔✔The condition that created an opening if the anterior teeth when the posterior teeth
are closed is ________.
A: openbite
B; overjet
C: overbite
D: crossbite - ✔✔A: openbite
✔✔When assisting a dentist in cementation of orthodontic bands, which of the following
would NOT be needed in the tray setup.
A: band seater
B: preselected orthodontic bands
C: scaler
D: hemostat
E: contouring pliers
F: band pusher
G: basic setup - ✔✔D: hemostat
✔✔If an orthodontic patient does not maintain good oral hygiene, which of the following
may occur?
A: rampant decay
B: hypocalcification
C: periodontal disease
D: all of the above - ✔✔D: all of the above
