Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Expanded Functions Dental Assisting (EFDA)- Pennsylvania > **Matrices > Flashcards

**Matrices Flashcards

1
Q

What classification(s) of preps require a matrix system?

A

Class 2, 3, 4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the purpose of using a matrix system?

A

to act as a temporary/artificial wall for the restorative material to be condensed against

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the two types of a tofflemire retainer?

A

-straight
-contra-angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What part of the tofflemire retainer is used to hold the matrix band in the retained and direct it left or right?

A

guide channels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What part of the tofflemire retainer has the opening for the spindle to move in/out of to hold the matrix band in place?

A

the vice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What part of the tofflemire retainer in the vice uses the spindle to hold the matrix band in place?

A

guide slot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

In the tofflemire retainer, what is the threaded rod with a pointed tip that is used to secure the matrix band into the vice?

A

spindle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What part of the tofflemire retainer controls the vice to change the circumference of the matrix band loop?

A

inner knob

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What part of the tofflemire retainer tightens or loosens the spindle against the matrix band?

A

outer knob

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a tofflemire matrix band made out of?

A

stainless steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the three common styles of the tofflemire matrix band?

A

-universal
-extended
-pedo

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What part of the tofflemire matrix band is positioned to the gingival edge of the tooth?

A

smaller circumference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What part of the tofflemire matrix band is positioned to the occlusal edge of the tooth?

A

larger circumference

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is used to slightly separate the teeth to compensate for the thickness of the matrix band?

A

wedge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which embrasure is typically larger and therefore, easier to place a wedge?

A

lingual embrasure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How many sectional matrix rings are used for each proximal box?

A

one ring per proximal box

17
Q

What is used to place the sectional matrix ring?

18
Q

How far into the gingiva is the matrix band extended at the gingival margin of the prep?

19
Q

How far above the occlusal surface is the matrix band extended at the junction of the occlusal and lingual surfaces of the tooth?

20
Q

How far into the gingiva is a mylar strip extended at the gingival margin of the prep?

A

at least 1mm

21
Q

How far above the incisal margin of the prep is the mylar strip extended?

A

at least 1mm

Expanded Functions Dental Assisting (EFDA)- Pennsylvania (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions