RPD Review Questions

Questions 131-140


Question #131

True or False

An exception to the C+1 rule for number of clasps is the Class II modification 0 case.

True

False

 


Question 132

Physiologic adjustment is related to

the axis of rotation

adjustment of the framework to the teeth

functional movement of the framework

all of the above

 


Question 133

True or False

If physiologic adjustment of the framework is not done on a Class I modification 1 RPD, the clasps may not release in function.

True

False

 


Question 134

True or False

The bracing arm of a circumferential clasp assembly must always lie at or above the height of contour.

True

False

 


Question 135

Your patient has the partially edentulous arch shown to the right. What would be the best clasps for tooth number 20 and 29 if they were tilted mesially?

Mesial rests and cast I-bars

Mesial rests and WW I-bars

Distal rests and WW I-bars

Distal rests and combination clasps

 


Question 136

Your patient has the partially edentulous arch shown to the right. The premolars are tilted lingually and there are no facial undercuts. There are, however, undercuts on the lingual. What would be the best clasps for this situation?

Lingual I-bars

Roach clasps

Akers clasps

Half and Half clasps

 


Question 137

The external finish line on a maxillary Class I RPD originates from the lingual of the guide plate of the terminal abutment and ends

at the hamular notch.

in the glenoid fossa.

opposite the buccal pouch.

opposite Stenson's duct.

 


Question 138

The open latticework on a maxillary class I RPD

covers the hamular notch.

covers the tuberosity.

does not cover the tuberosity.

does not require substantial interach space.

 


Question 139

The partial denture design should be finalized prior to

any emergency treatment.

any fixed prosthodontic treatment.

preparation of rest seats.

both 2 and 3 above.

 


Question 140

Your patient has the partially edentulous arch shown to the right. The root of #29 has been saved as an overdenture abutment.

True or False

The presence of the overdenture abutment may change the axis of rotation but will not change the clasping considerations on tooth #28.

True

False

 


On to Questions 141 through 150