Does not apply
to class IV RPDsRPD Review Questions
The C + 1 rule
Does not apply
to class IV RPDs
Does not apply
to class III RPDs
Gives a general
rule for the number of clasps
Both 1 and
3
Which of the following maxillary major connectors possesses the least strength and rigidity?
Anterior-posterior palatal strap
Horse-shoe
Palatal
plate
Modified
palatal plate
True or False
A cingulum rest is normallly placed between the middle and incisal thirds of the maxillary incisors in order to avoid occlusal interferences.
True
False
Question #54Your patient exhibits the mandibular class II modification 1 arch shown to the right. Tooth #30 is tilted mesiolingually, but has a very severe tissue undercut on the lingual. What is the best clasp for this situation?
Cast
circumferential clasp utilizing a distolingual undercut.
Cast I-bar
utilizing a mesiolingual undercut.
Cast ring clasp
utilizing a mesiolingual undercut.
Wrought wire
circumferential clasp utilizing a distolingual undercut.
True or False
All methods of measuring the vertical dimension of occlusion agree on one major principle: In physiologic functions (speaking and swallowing) the teeth should make contact.
True
False
True or False
Malposed or super-erupted teeth may cause a discrepancy between centric relation and centric occlusion. Therefore, it is recommended that the opposing teeth not touch during the making of a centric relation record for mounting of diagnostic casts.
True
False
True or False
The purpose of the centric relation record is to record the exact position of the maxilla to the mandible in a protrusive relation.
True
False
True or False
If abutment teeth require crowns, the RPD design is prepared after the crowns are cemented.
True
False
True or False
Alginate impression materials have excellent dimensional stability over time and seldom lead to over extended vestibular extensions.
True
False
True or False
Master casts for patients with lone-standing abutments should be poured in "Silky Rock" stone.
True
False