Lec 4.3.3: Measurements - Direct Retainer Flashcards

1
Q

Retentive arm of simple akers

A

14 or #16 1/2 round (tapering)

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

Reciprocal arm of simple akers

A

14 or #16 1/2 round (non-taper)

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

Part of retentive clasp (simple akers) engaging the undercut

A

Terminal 1/3 of clasp

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

Degree of abutment encirclement by the clasp

A

Greater than 180 degree

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

Clearance of the approaching arm of RPI from gingival margin

A

2-3mm

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

Ideal position of the retentive clasp on the abutment

A

Cervical 1/3

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

Ideal position of the reciprocal clasp on the abutment

A

Junction of the middle & cervical 1/3

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

I-bar exits from this area of the mesh

A

Between pontics

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

I-bar

A

Tapered wax #12 1/2 round

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

Maximum number of direct retainers

A

4 (2 per quadrant)

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

Tip of retentive arm (simple akers)

A

Curved slightly upward

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

Bilateral configuration of the direct retainer

A

2 direct retainers

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

Triangular configuration of the direct retainer

A

3 direct retainers

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

Quadrilateral configuration of the direct retainer

A

4 direct retainers

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