DASLE MN 2025/2026 EXAM
QUESTIONS AND ANSWERS | 100%
PASS
What system has a tightening wrench to tighten and loosen the band? - 🧠ANSWER
✔✔Automatrix
What is the purpose of a wedge? How many do you need for an MOD restoration?
- 🧠ANSWER ✔✔To contour and hold the band securely, 2 wedges
auto matrix is unique in that it has a wrench that does what? - 🧠ANSWER ✔✔has
no retainer to hold the band in place. the tightening wrench is inserted into the coil
and is turned clockwise to tighten the band
What occurs if the wedge is not place properly? - 🧠ANSWER ✔✔Overhang or
cupping
Class III & IV composites use what type of matrix system? - 🧠ANSWER
✔✔Celluloid strip "Mylar"
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,wedges function is to? - 🧠ANSWER ✔✔insert into the lingual embrasure to hold
the band firmly against the gingival margin of the prep.
for posterior restoration, where is the wedge inserted? - 🧠ANSWER ✔✔inserted on
the lingual side
what is used to insert the wedge? - 🧠ANSWER ✔✔110 howe pliers
The universal band when placed should extend _____ mm above the ________
surface? - 🧠ANSWER ✔✔1 ½ to 2 mm above the occlusal surface
what is T-band made from? - 🧠ANSWER ✔✔stainless steel or copper
what is the universal retainer (tofflemire retainer) - 🧠ANSWER ✔✔a mechanical
device that holds the matrix band snugly in position. it's designed for class II
amalgam restoration and intermediate. It's positioned from the buccal surface of
the tooth being restored
Explain the rule for posterior teeth isolation. - 🧠ANSWER ✔✔Isolate 1 to 2 teeth
distal to the tooth being treated (working tooth), and isolate 3 to 4 teeth mesial or 6
to 8 teeth for better stability
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
,Explain the rule for anterior teeth isolation. What is the exception to the rule? -
🧠ANSWER ✔✔Isolate canine to canine, clamp may not be needed, ligate between
canine and 1st premolar
Anterior/cervical clamp may be used for Class V, endo tooth or premolar clamps
may be used
The bow of the dental dam clamp is placed towards the _____ and the four points
of the clamp are resting _______________? - 🧠ANSWER ✔✔The distal and below
the height of contour
Which side of the tooth is the clamp placed on first? - 🧠ANSWER ✔✔Lingual, this
allows for a fulcrum to place the clamp
List items that can be used to invert dental dam. - 🧠ANSWER ✔✔Air, Plastic
instrument (blunt instrument), black spoon or beavertail burnisher, Waxed floss
the bow of the dental dam clam is placed towards the _____ and the four points of
the clamp are resting _______? - 🧠ANSWER ✔✔towards the distal and the four
points of the clamp are resting below the height of contour
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, Which side of the tooth is the clamp placed on first? - 🧠ANSWER ✔✔Lingual, this
allows for a fulcrum to place the clamp
List items that can be used to invert dental dam. - 🧠ANSWER ✔✔Air, Plastic
instrument (blunt instrument) black spoon or, beavertail burnisher, Waxed floss
List the hole punch numbers for each type of tooth: - 🧠ANSWER ✔✔5 - Anchor
Tooth (clamped tooth) or keyhole punch #5 (double punched if using a winged
clamp)
4 - MX & MN molars
3 - MX & MN canines and premolars
2 - Maxillary anterior centrals & laterals
1 - Mandibular anterior centrals & laterals
List the steps for removal of the dental dam. - 🧠ANSWER ✔✔Remove opposite
ligature/anchor (Wedjet or floss)
Cut the dam septum on the facial side
Remove the clamp
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
QUESTIONS AND ANSWERS | 100%
PASS
What system has a tightening wrench to tighten and loosen the band? - 🧠ANSWER
✔✔Automatrix
What is the purpose of a wedge? How many do you need for an MOD restoration?
- 🧠ANSWER ✔✔To contour and hold the band securely, 2 wedges
auto matrix is unique in that it has a wrench that does what? - 🧠ANSWER ✔✔has
no retainer to hold the band in place. the tightening wrench is inserted into the coil
and is turned clockwise to tighten the band
What occurs if the wedge is not place properly? - 🧠ANSWER ✔✔Overhang or
cupping
Class III & IV composites use what type of matrix system? - 🧠ANSWER
✔✔Celluloid strip "Mylar"
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,wedges function is to? - 🧠ANSWER ✔✔insert into the lingual embrasure to hold
the band firmly against the gingival margin of the prep.
for posterior restoration, where is the wedge inserted? - 🧠ANSWER ✔✔inserted on
the lingual side
what is used to insert the wedge? - 🧠ANSWER ✔✔110 howe pliers
The universal band when placed should extend _____ mm above the ________
surface? - 🧠ANSWER ✔✔1 ½ to 2 mm above the occlusal surface
what is T-band made from? - 🧠ANSWER ✔✔stainless steel or copper
what is the universal retainer (tofflemire retainer) - 🧠ANSWER ✔✔a mechanical
device that holds the matrix band snugly in position. it's designed for class II
amalgam restoration and intermediate. It's positioned from the buccal surface of
the tooth being restored
Explain the rule for posterior teeth isolation. - 🧠ANSWER ✔✔Isolate 1 to 2 teeth
distal to the tooth being treated (working tooth), and isolate 3 to 4 teeth mesial or 6
to 8 teeth for better stability
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
,Explain the rule for anterior teeth isolation. What is the exception to the rule? -
🧠ANSWER ✔✔Isolate canine to canine, clamp may not be needed, ligate between
canine and 1st premolar
Anterior/cervical clamp may be used for Class V, endo tooth or premolar clamps
may be used
The bow of the dental dam clamp is placed towards the _____ and the four points
of the clamp are resting _______________? - 🧠ANSWER ✔✔The distal and below
the height of contour
Which side of the tooth is the clamp placed on first? - 🧠ANSWER ✔✔Lingual, this
allows for a fulcrum to place the clamp
List items that can be used to invert dental dam. - 🧠ANSWER ✔✔Air, Plastic
instrument (blunt instrument), black spoon or beavertail burnisher, Waxed floss
the bow of the dental dam clam is placed towards the _____ and the four points of
the clamp are resting _______? - 🧠ANSWER ✔✔towards the distal and the four
points of the clamp are resting below the height of contour
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, Which side of the tooth is the clamp placed on first? - 🧠ANSWER ✔✔Lingual, this
allows for a fulcrum to place the clamp
List items that can be used to invert dental dam. - 🧠ANSWER ✔✔Air, Plastic
instrument (blunt instrument) black spoon or, beavertail burnisher, Waxed floss
List the hole punch numbers for each type of tooth: - 🧠ANSWER ✔✔5 - Anchor
Tooth (clamped tooth) or keyhole punch #5 (double punched if using a winged
clamp)
4 - MX & MN molars
3 - MX & MN canines and premolars
2 - Maxillary anterior centrals & laterals
1 - Mandibular anterior centrals & laterals
List the steps for removal of the dental dam. - 🧠ANSWER ✔✔Remove opposite
ligature/anchor (Wedjet or floss)
Cut the dam septum on the facial side
Remove the clamp
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
