True
RPD Review Questions
True or False
The fewer teeth that remain, the more like a denture the RPD becomes and the more likely the need for a custom impression tray.
True
False
Reason(s) for selecting a mandibular lingual plate major connector is/are?
The presence of
lingual tori.
Anticipated
loss of one or more of the remaining teeth.
A high lingual
frenum.
1, 2, and 3
above
Question #93Your patient has teeth 20 through 29 remaining. Tooth #29 exhibits the tooth contours and undercut shown in the illustration to the right. Which of the clasp assemblies listed has the GREATEST DANGER of torquing the abutment during functional movements of the extension base?
Mesial rest and
cast I-bar
Distal rest and
WW circumferential clasp
RPA clasp
assembly with a cast clasp
All have about
the same potential danger
Which of the following clasps commonly utilize lingual undercuts?
Ring
clasp
Extended arm
clasp
Half and half
clasp
Both 1 and
3
Question #95Which of the abutments in the partially edentulous arch to the right has the greatest potential for utilization of a ring clasp?
#18
#21
#28
None of the
abutments have any potential for the use of a ring clasp.
True or False
Metal denture bases are most commonly used over well-healed posterior ridges where vertical space is a problem.
True
False
Question #97True or False
Referring to the partially edentulous arch shown to the right.
The guide plates on teeth 21 and 28 should curve buccolingually and extend lingually just short of the distolingual line angles.
True
False
A cingulum rest should be placed
between the
occlusal and middle thirds of the incisor teeth.
above the
middle third of the incisor teeth.
at the junction
of the gingival and middle thirds of the incisor teeth.
on the
disto-incisal edges of the incisor teeth.
The external finish line is
the external
junction of framework metal and denture base plastic.
the external
junction of framework metal and supporting tissues.
the external
junction of the framework metal and the natural teeth.
the external
junction of the natural teeth and the denture base plastic.
True or False
As a general rule, a removable partial denture needs C+1 clasps where C=Kennedy classification number.
True
False