ADEX OSCE| 136 questions|
answers 100% correct
thickness of minor RPD connectors Correct Answer: 1.5 mm
Minimum space between vertical components of RPD Correct Answer:
5 mm
Kennedy Class I Correct Answer: bilateral distal extension
Kennedy Class II Correct Answer: unilateral distal extension
Kennedy Class III Correct Answer: entirely tooth born with teeth
anterior and posterior
Kennedy Class IV Correct Answer: edentulous area anterior to
remaining teeth
Lingual bar distance from gingival margin Correct Answer: 3 mm
Lingual bar width (minimum) Correct Answer: 4 mm
Maxillary major connectors, how far from gingival margin Correct
Answer: 6 mm
Max RPD bead line width and depth Correct Answer: .75-1 mm
Anterior-posterior palatal strap, minimum distance between straps and
minimum width for each strap Correct Answer: 15 mm between, 6 mm
anterior and 8 mm posterior
,Palatal plate advised when? Correct Answer: The last abutment on
either side is a canine or premolar
Main function of indirect retainers Correct Answer: prevents vertical
dislodgement of the distal extension base away from tissues (sticky
food)
Minimum number of rests for RPD Correct Answer: 3
For a distal extension where is the rest on the most posterior tooth
Correct Answer: mesial
rest seat depth Correct Answer: 1.5 mm at marginal ridge and 2 mm in
center, at least 2.5 mm wide
what is prepared first? Guide planes or seats Correct Answer: guide
planes
extended occlusal rests used when? Correct Answer: used when most
posterior molar abutment is mesially tipped in class II (mod I) and class
III
Cingulum rest depths Correct Answer: 2 mm wide (F-L), 2.5-3 mm (M-
D), 1.5 mm deep
Guide plane position relative to height of contour for classes of RPD
Correct 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.
, how to determine number of clasps Correct Answer: kennedy
classification + 1 (except for class IV)
Undercut of 0.01 Correct Answer: cast clasp
Undercut of 0.02 Correct Answer: wrought wire (0.5 mm and must be
at least 8 mm long, 18 gauge)
chromium provides what Correct Answer: corrosion resistance
cobalt provides what Correct Answer: rigidity
Nickel provides what Correct Answer: ductility
What muscle dictates the DB of the mand flange of a denture Correct
Answer: masseter
What muscle dictates the DL of the mand flange of a denture Correct
Answer: superior constrictor muscle
how far to trim back the custom tray from the mucosal reflection
Correct Answer: 2 mm
occlusion rim heights Correct Answer: maxillary 22 mm, mandibular 18
mm
The inferior surface of the maxillary occlusal rim should be parallel to...
Correct Answer: Camper's Line (Ala-tragus Line) and inter-pupillary line
primary and secondary support for mand denture Correct Answer:
primary - buccal shelf, secondary - alveolar ridge
answers 100% correct
thickness of minor RPD connectors Correct Answer: 1.5 mm
Minimum space between vertical components of RPD Correct Answer:
5 mm
Kennedy Class I Correct Answer: bilateral distal extension
Kennedy Class II Correct Answer: unilateral distal extension
Kennedy Class III Correct Answer: entirely tooth born with teeth
anterior and posterior
Kennedy Class IV Correct Answer: edentulous area anterior to
remaining teeth
Lingual bar distance from gingival margin Correct Answer: 3 mm
Lingual bar width (minimum) Correct Answer: 4 mm
Maxillary major connectors, how far from gingival margin Correct
Answer: 6 mm
Max RPD bead line width and depth Correct Answer: .75-1 mm
Anterior-posterior palatal strap, minimum distance between straps and
minimum width for each strap Correct Answer: 15 mm between, 6 mm
anterior and 8 mm posterior
,Palatal plate advised when? Correct Answer: The last abutment on
either side is a canine or premolar
Main function of indirect retainers Correct Answer: prevents vertical
dislodgement of the distal extension base away from tissues (sticky
food)
Minimum number of rests for RPD Correct Answer: 3
For a distal extension where is the rest on the most posterior tooth
Correct Answer: mesial
rest seat depth Correct Answer: 1.5 mm at marginal ridge and 2 mm in
center, at least 2.5 mm wide
what is prepared first? Guide planes or seats Correct Answer: guide
planes
extended occlusal rests used when? Correct Answer: used when most
posterior molar abutment is mesially tipped in class II (mod I) and class
III
Cingulum rest depths Correct Answer: 2 mm wide (F-L), 2.5-3 mm (M-
D), 1.5 mm deep
Guide plane position relative to height of contour for classes of RPD
Correct 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.
, how to determine number of clasps Correct Answer: kennedy
classification + 1 (except for class IV)
Undercut of 0.01 Correct Answer: cast clasp
Undercut of 0.02 Correct Answer: wrought wire (0.5 mm and must be
at least 8 mm long, 18 gauge)
chromium provides what Correct Answer: corrosion resistance
cobalt provides what Correct Answer: rigidity
Nickel provides what Correct Answer: ductility
What muscle dictates the DB of the mand flange of a denture Correct
Answer: masseter
What muscle dictates the DL of the mand flange of a denture Correct
Answer: superior constrictor muscle
how far to trim back the custom tray from the mucosal reflection
Correct Answer: 2 mm
occlusion rim heights Correct Answer: maxillary 22 mm, mandibular 18
mm
The inferior surface of the maxillary occlusal rim should be parallel to...
Correct Answer: Camper's Line (Ala-tragus Line) and inter-pupillary line
primary and secondary support for mand denture Correct Answer:
primary - buccal shelf, secondary - alveolar ridge
