Operative II Practical 1 | For CATS and Exam
Revision
1. Class II preparations are missing at least one .: prox-
imal wall
2. Placement of the amalgam in the proximal area needs to be supported by a
.: temporary matrix band
3. matrix bands: properly shaped piece of metal or non-metal which supports the restoration
during its insertion and setting
4. What is the difference between circumferential and sectional matrix bands?-
: • circumferential = 360°
• sectional = only proximal box area
5. What are three types of circumferential matrix bands?: 1. tofflemire matrix
2. auto-matrix
3. T-bands
6. What are two types of sectional matrix bands?: 1. palodent
2. garrison
7. MOD matrix band: • modified - 2 "wings"
• used to large restorations
8. What is the proper orientation of a matrix band?: • inverted "V"
9. Matrix bands aid in of preparation during the fill.: isolation
10.Matrix bands provide a against which restorative
material can be placed.: temporary wall
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, Operative II Practical 1 | For CATS and Exam
Revision
11.Matrix bands re-establish with the adjacent
tooth.: proximal contact and contour
12.Matrix bands aid in the prevention of .: voids
13. Matrix bands allow of the
restorative material.: -
containment
14.A straight Tofflemire retainer is placed from (buccal/lingual).: buccal
15.A contra-angled Tofflemire retainer is placed from (buccal/lingual).: lingual
16.How many guide channels does the Tofflemire retainer have?: four
17.What is the proper orientation of the Tofflemire retainer?: • inverted "U"
• round end of "U" is towards occlusal
18.When the matrix band is folded, the (gingival/occlusal) side has the smaller diameter.: gingival
19.When the matrix band is folded, the (gingival/occlusal) side has the larger diameter.: occlusal
20.The loop of the matrix band exits the head of the Tofflemire retainer through the guide channel
adjacent to .: the tooth being restored
21. Th
e base of the triangle wedge should be against the .-
: gingiva
22. Wedges separate the teeth slightly to compensate for
.: the thickness of the band
23.Wedges prevent .: flash (overhang)
24.Wedges help stabilize the .: matrix band
25.Wedges help in depressing the in the interproximal area.:
dental dam
26.Wedges can aid in minimizing trauma to the .: inter-
dental tissue
27.Wedges are placed in the (larger/smaller) embrasure.: larger
28.Which is typically the largest embrasure?: lingual
29.What two mistakes in wedge placement can cause an indentation in the restoration and/or
flash?: 1. inserting the wedge upside down
2. inserting the wedge above the gingival cavosurface margin
30. What one mistake in wedge placement can can cause overhang flash?: -
wedge too small or too loose
31.What one mistake in wedge placement can cause an open margin and/or improper restoration
For help with assignments, discussions, research papers, Ms. excel and ppt tasks contact
Revision
1. Class II preparations are missing at least one .: prox-
imal wall
2. Placement of the amalgam in the proximal area needs to be supported by a
.: temporary matrix band
3. matrix bands: properly shaped piece of metal or non-metal which supports the restoration
during its insertion and setting
4. What is the difference between circumferential and sectional matrix bands?-
: • circumferential = 360°
• sectional = only proximal box area
5. What are three types of circumferential matrix bands?: 1. tofflemire matrix
2. auto-matrix
3. T-bands
6. What are two types of sectional matrix bands?: 1. palodent
2. garrison
7. MOD matrix band: • modified - 2 "wings"
• used to large restorations
8. What is the proper orientation of a matrix band?: • inverted "V"
9. Matrix bands aid in of preparation during the fill.: isolation
10.Matrix bands provide a against which restorative
material can be placed.: temporary wall
For help with assignments, discussions, research papers, Ms. excel and ppt tasks contact
, Operative II Practical 1 | For CATS and Exam
Revision
11.Matrix bands re-establish with the adjacent
tooth.: proximal contact and contour
12.Matrix bands aid in the prevention of .: voids
13. Matrix bands allow of the
restorative material.: -
containment
14.A straight Tofflemire retainer is placed from (buccal/lingual).: buccal
15.A contra-angled Tofflemire retainer is placed from (buccal/lingual).: lingual
16.How many guide channels does the Tofflemire retainer have?: four
17.What is the proper orientation of the Tofflemire retainer?: • inverted "U"
• round end of "U" is towards occlusal
18.When the matrix band is folded, the (gingival/occlusal) side has the smaller diameter.: gingival
19.When the matrix band is folded, the (gingival/occlusal) side has the larger diameter.: occlusal
20.The loop of the matrix band exits the head of the Tofflemire retainer through the guide channel
adjacent to .: the tooth being restored
21. Th
e base of the triangle wedge should be against the .-
: gingiva
22. Wedges separate the teeth slightly to compensate for
.: the thickness of the band
23.Wedges prevent .: flash (overhang)
24.Wedges help stabilize the .: matrix band
25.Wedges help in depressing the in the interproximal area.:
dental dam
26.Wedges can aid in minimizing trauma to the .: inter-
dental tissue
27.Wedges are placed in the (larger/smaller) embrasure.: larger
28.Which is typically the largest embrasure?: lingual
29.What two mistakes in wedge placement can cause an indentation in the restoration and/or
flash?: 1. inserting the wedge upside down
2. inserting the wedge above the gingival cavosurface margin
30. What one mistake in wedge placement can can cause overhang flash?: -
wedge too small or too loose
31.What one mistake in wedge placement can cause an open margin and/or improper restoration
For help with assignments, discussions, research papers, Ms. excel and ppt tasks contact
