Random Qs Flashcards
How will the alveolar ridge respond to a mandibular CD base that terminated short on retromolar pad:
A. Marked ridge resportion will occur
B. The apposition of bone on the ridge will occur
C. Not afected at all
D. Soreness of soft tissue
E. Fracture of the ridge may occur
A. Marked ridge resorption will occur
Primary supporting area of mand. CD is:
A. Vestibule
B. Buccal shelf
C. Palatopharyngeal fold
D. Franulum
E. All
B. Buccal shelf area
Impression technique used in sharp mandi. Ridge
A. Min. Pressure impression tech
B. Selective pressure
C. Excessive
E. All
A
The position of the upper occlusal rim in the articulator is adjusted by:
A. Arbitary means
B. Facebow
C. Adjusting intercondylar distance
D. Adjusting incisal pin
E. Visually
B
A loss in vertical dimension. In CD will cause the mand. To move:
A. Backward in relation to upper jaw
B. Forward in relation to upper jaw
C. No change
D. Loss of vertical dimension in rare
E. Eccentric movement
B
Balanced occlusion in CD is essential:
A. For pt. To masticate properly
B. For dentures to have adequate retention
C. To ensure even pressure in all parts of the arch, which maintains the stability of the dentures when the mand. Is in centric & eccentric position
D. Not essential
E. For aesthetics
C
A pt is referred to the denturist with complaint of a newly made denture which is loose and causes soreness even after repeated adjustments. WHat is the most imp. Protocol to follow in such case?
A. Check occlusion
B. Take another impression denture immediately
C. To relive the denture at the sore spots
D. To ask the patient to use denture fixatives
E. Tolerate denture
A
A CD wearer, reports complaining of discomfort with his dentures. On examination it is observed that the posterior teeth are set edge to edge, w/o horizontal overjet, the possible discomfort may be:
A. Gagging
B. Cheek biting
C. Reduced taste
D. Speech aberrations
E. Lip biting
B
After the provision of CD the first review appointment for evaluating the new dentures should be carried out after:
A. 3 hours
B. 12 hours
C. 24 hours
D. 36 hours
E. 48 hours
C
The oral muscular forces have a definitive effect, on the position of the mandible. What position will the mandible be braced during typical empty mouth swallowing?
A. Intercuspal position
B. Retruded contact position
C. Protruded contact position
D. Centric relation
E. Eccentric relation
A
Empty mouth= no food in mouth
Swallow your saliva
An overextended distobuccal corner of a mand. Denture will push against which muscle during function:
A. Zygomaticus
B. Orbicularis
C. Temporalis
D. Masseter
E. Buccinator
D
Mandibular movement pattern of CD pts. & those with natural teeth are:
A. Same
B. Completely different
C. Slow in CD pts.
D. Frequent in CD pts.
E. Irregular in CD pts.
A
Pts. With CD are advised to chew foods on both sides of the mouth, but with food of tougher consistency, pt. Preference for chewing changes and use:
A. Molar region for chewing
B. Premolar region for chewing
C. Makes no difference. Chewing of tough foods is not possible
D. Anterior region
E. Pt. Avoids tough food
B
Find out why. Note: PATIENT PREFERENCE
On a review appointment it is observed that there is a deposition of calculus on one side of the denture. This indicates that:
A. Pt. Is not cleaning his denture on that side
B. Occlusion is not correct on that side
C. Pt. Salivates too much
D. Pt. Continuously wears his dentures
E. No denture hygiene instructions were given to the patient
B
Tripoding is the method used:
A. For giving clasp assemblies at. 3 points
B. For recording the relation of the cast to the surveyor
C. To determine the areas on the tooth where the gingivally approaching clasp, occlusal rest of the reciprocal arm are going to be placed
D. To have reprodcible position of the cast on the surveyor
E. To identlfy guide planes
E
What is the most suitable material for making impression of a partially edentulous patient?
A. Irreversible hydrocolloids
B. Reversible hydrocolloid
C. Elastomers
D. Plaster of paris
E. Impression waxes
C
What are the functions of an indirect retainer:
A. Prevent horizontal dislodgement of distal extension base of RPD
B. Connect parts of prosthesis located on one side to other
C. Prevent vertical dislodgement of distal extension base of RPD
D. Link the MC & other parts of the prosthesis together
E. No function
C
A wrough wire claso when used as a retainer:
A. Is less flexible that a cast clasp
B. Is not as tough as a ccast clasp
C. Has a tensile strength that is at least 25% greater than that of the cast alloy from which it was made
D. Is not as adjustbale as a cast clasp
E. Is never used a retainer
C
In the mesial rest, guide plabe and i bar design, reciprocation is achieved by:
A. Flexible plating
B. minC
C. MC
D. Guide planes not extendind around the vertical line of abutments
E. Retentive clasp arms
B
All of the following are advantges of the gingivally approching clasps as compares to occlusally approaching clasp, except:
A. Less distortion of coronal contours
B. Less tooth contact
C. Cleaner
D. Less bothersome to vesticular tissues
E. Esthetically superior in most cases
D
Reciprocal arm of the clasp assembly must be:
A. On lingual side
B. Active
C. Active when 1/2 of denture has been inserted
D. Passive
E. Reciprocation is not easy
D
All of following are considered to be basic rules for occlusal rest design when fabrication RPD except:
A. Rest should minimise tilting action of appliance
B. Rest must prevent movement of appliance in cervical position
C.. Rest should transmit foorces down the long axis of tooth
D. Rest must have sharp angles to premit max. Retention
E. Occlusal rest is not necessary
d
For preparation of rest seat:
A. Marginal ridge should be reduced to 2.5 mm
B. Marginal ridge should be reduced to 1.5 mm
C. Outline to have greater width than length
D. Outline have greater length than width
E. No preparation
B
Labial bar is indicated when:
A. Diastema
B. Labial inclination of teeth
C. Lingual inclination of teeth
D. Periodontally weak teeth
E. Lips are incompetent
C
