DASLE MN EXAM QUESTIONS WITH Detailed
Answer Key For (2025|2026) Exam, A+ Solutions
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Terms in this set (319)
What system has a Automatrix
tightening wrench to
tighten and loosen the
band?
What is the purpose of a To contour and hold the band securely, 2 wedges
wedge? How many do
you need for an MOD
restoration?
auto matrix is unique in has no retainer to hold the band in place. the
that it has a wrench that tightening wrench is inserted into the coil and is
does what? turned clockwise to tighten the band
What occurs if the wedge Overhang or cupping
is not place properly?
Class III & IV composites Celluloid strip "Mylar"
use what type of matrix
system?
insert into the lingual embrasure to hold the band
wedges function is to?
firmly against the gingival margin of the prep.
for posterior restoration, inserted on the lingual side
where is the wedge
inserted?
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what is used to insert the 110 howe pliers
wedge?
The universal band when 1 ½ to 2 mm above the occlusal surface
placed should extend _____
mm above the ________
surface?
what is T-band made stainless steel or copper
from?
a mechanical device that holds the matrix band snugly
what is the universal
in position. it's designed for class II amalgam
retainer (tofflemire
restoration and intermediate. It's positioned from the
retainer)
buccal surface of the tooth being restored
Isolate 1 to 2 teeth distal to the tooth being treated
Explain the rule for
(working tooth), and isolate 3 to 4 teeth mesial or 6 to
posterior teeth isolation.
8 teeth for better stability
Explain the rule for Isolate canine to canine, clamp may not be needed,
anterior teeth isolation. ligate between canine and 1st premolar
What is the exception to Anterior/cervical clamp may be used for Class V,
the rule? endo tooth or premolar clamps may be used
The bow of the dental The distal and below the height of contour
dam clamp is placed
towards the _____ and the
four points of the clamp
are resting _______________?
Which side of the tooth is Lingual, this allows for a fulcrum to place the clamp
the clamp placed on first?
List items that can be used Air, Plastic instrument (blunt instrument), black spoon
to invert dental dam. or beavertail burnisher, Waxed floss
the bow of the dental dam towards the distal and the four points of the clamp are
clam is placed towards the resting below the height of contour
_____ and the four points of
the clamp are resting
_______?
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Which side of the tooth is Lingual, this allows for a fulcrum to place the clamp
the clamp placed on first?
List items that can be used Air, Plastic instrument (blunt instrument) black spoon
to invert dental dam. or, beavertail burnisher, Waxed floss
5 - Anchor Tooth (clamped tooth) or keyhole punch
#5 (double punched if using a winged clamp)
List the hole punch
4 - MX & MN molars
numbers for each type of
3 - MX & MN canines and premolars
tooth:
2 - Maxillary anterior centrals & laterals
1 - Mandibular anterior centrals & laterals
Remove opposite ligature/anchor (Wedjet or floss)
Cut the dam septum on the facial side
Remove the clamp
List the steps for removal
Remove dam and frame
of the dental dam.
Check for pieces
Floss
Massage tissue
Better patient management and protection from
debris, materials and liquids
Controls moisture
List the uses/advantages
Decreases operator time
of using dental dam.
Effective barrier control for infection control
Used for RCT, sealants, restorations, whitening, not
used for oral surgery
Why is a dental dam Absorbs moisture, Latex allergies or reduce latex
napkin used? sensitivity, Patient comfort
Which clamp is used for a Cervical clamp (butterfly) 9, 212, 214 etc.
class V restoration?
Which dental frame is Plastic U-shaped frame due to being radiolucent
placed under the dam
material?
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Which dental frame is Youngs U-shaped metal frame
placed on the outside of Otsby plastic round frame
the dam material?
What happens if the holes the dam may tear and stretch. stretched holes may
are punched too close leave the gingiva exposed and may cause leakage
together?
What happens if the holes excess material is present between the teeth. this may
are punched too far block the DDS vision or catch in instrumentation
apart?
What happens if the curve If too flat or wide = bunching on lingual
of the arch is punched too If too curved or narrow = folding on the facial
flat? Too narrow?
How far apart should the 3.0-3.5 mm
holes be spaced?
Prior to the application of Prophy brush and non-fluoridated pumice, no oils
sealants, what are the (can interfere with the bonding process)
teeth are cleaned with?
Which are etched longer, Primary teeth because they are stronger and teeth
permanent or primary with fluorosis
teeth?
What is the composition of 37% phosphoric acid (35-47%)
the etching material?
What is the best isolation dental dam
technique when applying
sealants?
Dull
Describe characteristics of
Frosted
an etched surface.
Chalky
Occlusal surface is smooth and easy to clean
List contra-indicators for Decay on occlusal surface
sealant placement. Decay on interproximal surface
Restoration already in place
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