Direct Retainers
Authored by Dr.Jagadesaan N
Specialty
University
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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the following is NOT a force that can act to displace a removable partial denture from the tissues?
a) Gravity acting against a maxillary prosthesis
b) The action of adherent foods on opening of the mouth
c) Forces of occlusion directed towards the supporting teeth
d) Functional forces acting across a fulcrum to unseat the prosthesis
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
What is the primary function of a direct retainer in a removable partial denture?
a) To provide support for the denture base
b) To resist displacement of the prosthesis away from basal seat tissue
c) To connect the denture base to the major connector
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
What are the two means by which sufficient retention is provided for a removable partial denture?
(a)
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
According to the principle of encirclement, what is the minimum degree of tooth circumference that must be engaged by a clasp assembly?
(a)
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Which of the following is NOT a principal form of extracoronal retainer?
(a)
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