3

Question 1

If lingual retentive arm used on one side

Answer 1

use on other.

Question 2

Lingual retentive arms should not be used on

Answer 2

premolars - short mesial distal length is the reason.

Question 3

Retentive arm tip should point

Answer 3

occlusally

Question 4

Short clasps lack the necessary

Answer 4

flexibility

Question 5

If no molars, acrylic to

Answer 5

vestibule depth.

Question 6

If molars, acrylic

Answer 6

few mm into vestibule

Question 7

Guide plates are —– tooth width (rest width)

Answer 7

1/3rd, or 1/2 intercuspal

Question 8

What is the shape of the occlusal rest

Answer 8

triangular

Question 9

Retentive arm dimensions

Answer 9

1mm at tip, 2mm at plate

Question 10

Minor connecctor for

Answer 10

RPI design

Question 11

Tissue stops

Answer 11

2mm by 2mm

Question 12

I bar dimesnions

Answer 12

2mm to undercut, 3mm down from tooth.

Question 13

I bar should be placed in

Answer 13

greatest prominence. It should be free to rotate.

Question 14

Can’‘t use I bar when tissue is

Answer 14

undercut, or when frenum or shallow vestibule present.

Question 15

RPA

Answer 15

same as RPI without I bar (add retention arm)