1. thickness of minor RPD connectors
*Answer* 1.5 mm
2. Minimum space between vertical components of RPD
*Answer* 5 mm
3. Kennedy Class I
*Answer* bilateral distal extension
4. Kennedy Class II
*Answer* unilateral distal extension
5. Kennedy Class III
*Answer* entirely tooth born with teeth anterior and posterior
6. Kennedy Class IV
, *Answer* edentulous area anterior to remaining teeth
7. Lingual bar distance from gingival margin
*Answer* 3 mm
8. Lingual bar width (minimum)
*Answer* 4 mm
9. Maxillary major connectors, how far from gingival margin
*Answer* 6 mm
10. Max RPD bead line width and depth
*Answer* .75-1 mm
11. Anterior-posterior palatal strap, minimum distance between straps and
minimum width for each strap
*Answer* 15 mm between, 6 mm anterior and 8 mm posterior
,12. Palatal plate advised when?
*Answer* The last abutment on either side is a canine or premolar
13. Main function of indirect retainers
*Answer* prevents vertical dislodgement of the distal extension base
away from tissues (sticky food)
14. Minimum number of rests for RPD
*Answer* 3
15. For a distal extension where is the rest on the most posterior tooth
*Answer* mesial
16. rest seat depth
*Answer* 1.5 mm at marginal ridge and 2 mm in center, at least 2.5 mm wide
17. what is prepared first? Guide planes or seats
, *Answer* guide planes
18. extended occlusal rests used when?
*Answer* used when most posterior molar abutment is mesially
tipped in class II (mod I) and class III
19. Cingulum rest depths
*Answer* 2 mm wide (F-L), 2.5-3 mm (M-D), 1.5 mm deep
20. Guide plane position relative to height of contour for classes of RPD
*Answer* Class III
and IV can end above the height of contour because there is no functional movement. Class I and II must be below
the height of contour (to prevent torquing). With I-bars and mesial rests on premolars, must end exactly at the height
of contour.
21. how to determine number of clasps
*Answer* kennedy classification + 1 (except for class IV)