LOL @ my life Flashcards
The only major connector that should NOT be used in the maxillary arch is
Lingual bar
The major connector most commonly used for Class 3 RPDs
Palatal strap
The width of the straps used in A-P
6-8mm
the depth of the marginal ridge in rest seat
1-1.5mm
T/F Proximal plate needs to be adjusted before rest seat. You want the S curved survey line, in the retentive arm, not the reciprocal arm
True, true
Fabrication of RPD framework is
master cast
Later forces are what funciton
cross arch stabilization
Rest seats transfer forces down what axis
long axis of the tooth
Order of reduction
Guide planes, survey line adjustment, and then rest seats
T/F You want guide planes to wrap around to lingual in RPI. There should be sluiceway through the facial in RPI on the medial rest
Ture, false
Cast circumferential undercut size
0.01 inches
T/F Co-Cr is used in the UMKC clinic. Co-Cr used more than Ni-Cr because of nickel allergy
True, true
T/F Reciprocal clasp is rigid and above the survey line
T
The proximal 2/3 of reciprocal is in the _____ and terminal 1.3 of the reciprocal is in the ____
middle and middle
Dont want excessive tilt to the cast - why
You want the cast to be perpendicular to the occlusal plane
Kenndy classification with no mods. Anteriors only missing.
Class IV
Terminal 1/3 of retentive clasp is in the
gingival 1/3
Which one does not apply to guiding planes
NEVER use mesially tilted mandibular molars for rest seats
alternative cast method you remove
distal extensions
What is drawn in red
Retentive Undercuts, tooth modifications,
What is drawn in blue
metal framework outline and wrought wire clasp
What is drawn in black
Survey line, tripod marks and soft tissue undercuts
For an I bar, you cannot use which of the following in a distal extension case
DF
Width of guiding plane in tooth -tissue. “short guiding planes”
1.5-2mm
Width of guiding plane in Tooth-tooth. “long guiding planes”
3-4mm
The pod of the I bar in the 0.01” undercut
the 2mm area that touches the undercut
T/F As length of the guiding plane is increased frictional retention increases. As the length increases, resistance retention inceases
True. True
You have 19, 22, 23,24, 24 missing - what is the Kennedy classifications
Class 3 Mod 1
Bilateral distal extension is what classification
Class 1
T/F Borders for lingual plate should be 3-4mm from the gingival margin Depth of floor of mouth is best determined by the cast
True. False
Abutment and minor connector definitions
Abutment - Tooth that supports prosthesis.
Minor connector - component of an RPD joins the major connector to the clasp assembly and indirect retainers
Which of the following are required for clasp assembly
support, resistance, retention
Which major connector is the least rigid
horseshoe
Which tooth is the composite cingulum rest seat placed no
mand canine due to thin enamel
what is the most common stress relief in distal extension cases
RPI - I and 1/2 T bar
Pt with all Mac tooth, which will not contribute to Kennedy classifications
tori
Which of the following isn’t true about the principle of encirclement
the RPI doesn’t satisfy it
Pt with all Max tooth, which will not contribute to Kennedy classifications
tori
the retentive arm is on the buccal of the max teeth. This is due to curve of spee
True, false
When viewed from the facial, when pt bites down on the distal extension area, what direction does the RPI move
Downward and mesially
What is not dental terminology
flipper
in applegates rules, the most _____ edentulous area ____ determines classification
posterior, always
T/F it is more desirable to keep the rounded contour from the occlusal
True
T/F Tilting the cast change the HOC. You use the trip of the carbon marker to make the survey line.
True, false
RPI clasp is what type of lever
class 2
RPI clasp is what type of lever
class 2
T/F Kennedy class 2 there is no axis of rotation something about median suture in Max.
False
Axis of rotations measured from
rest
T/F Borders for lingual bar 3-4mm from GM. Distance best measured on cast
True. False
What do you use for alternartive cast method
1 and 2?
Tissue undercut can prevent selection of (supra, infra, minor connector)
Infra bulge
External finish line?
Framework to denture base
External finish line?
Framework to denture base
When surveying a case the maximum tilt that is acceptable is
10 degrees
