1000 MCQS – PROSTHODONTICS
Plus March & September 2014 MCQs in Prosthodontics
84. What is the purpose of making a record of protrusive relation and what function
does it serve after it is made
A. To register the condylar path and to adjust the inclination of the incisal guidance.
B. To aid in determining the freeway space and to adjust the inclination of the incisal
guidance.
C. To register the condylar path and to adjust the condylar guides of the articulator so that
they are equivalent to the condylar paths of the patient.
D. To aid in establishing the occlusal vertical dimension and to adjust the condylar guides of
the articulator so that they are equivalent to the condylar paths of the patient.
86. The main factor controlling a decision to increase the occlusal height of teeth for
extensive oral reconstruction is whether
A. The inter occlusal distance will be physiologically acceptable after treatment
B. There will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns
C. At least two third of the original alveolar process will remain for adequate periodontal
support
D. The aesthetic appearance of the patient will improve sufficiently to warrant the planned
reconstruction
87. In planning and construction of a cast metal partial denture the study cast
A. facilitate the construction of custom/special trays
B. minimize the need for articulating
C. provide only limited information about inter ridge distance, which is
best assessed clinically
D. can be used as a working cast when duplicating facilities are not available
88. Periodontal damage to abutment teeth of partial denture with distal extension can
best be avoided by
A. Applying Stressbreakers
B. Employing bar clasps on all abutment teeth
C. Maintaining tissue support of the distal extension
D. Clasping at least two teeth for each edentulous area
E. Maintaining the clasp arms on all abutment teeth at the ideal degree of tension
89. Which of these muscles may affect the borders of mandibular complete denture
A. Mentalis
,B. Lateral pterygoid
C. Orbicularis oris
D. Levator angulioris
E. Temporal
90. Jaw relation of an edentulous patient has been established. The maxillary cast has
been mounted on an articulator without a face bow. You decide to increase the occlusal
vertical dimension by 4mm this will necessitate
A. Opening the articulator 4mm
B. A new centric relation to be recorded
C. A change in the condylar guide settings
D. An increase in the rest vertical dimension
91. Following extraction of the molar teeth**
A. The ridge height is lost more from the maxilla than from the mandible
B. The maxillary ridge will get more bone lost from the palatal aspect than the buccal
C. The mandibular arch is relatively narrower than the maxillary arch
D. Compared with the pre-resorption state, the mandibular ridge will lose more bone from the
lingual aspect than the buccal one.
92. Which of the following is a major disadvantage to immediate complete denture
therapy
A. Trauma to extraction site
B. Increased the potential of infection
C. Impossibility for anterior try in
D. Excessive resorption of residual ridge
100. What is the main purpose of using Stress breakers
A. To distribute the load between teeth and ridges
B. To distribute the load between the clasps and the face end of the saddle
C. It relieves the abutment tooth of occlusal loads that may exceed their physiologic strength
103. Which is more retentive form for anterior bridge
A. ¾ partial veneer crown
B. Class V inlay
C. Pinlay Veneer
D. Class III inlay with pins
125. Patient with class II division II; the lateral incisor is missing. You want to make a
fixed bridge which of the following is suitable:
A. Rocket bridge using central incisor as abutment
,B. Cantilever using central incisor
C. Fixed bridge using the central incisor and bicuspid
126. When repairing a fracture of lower complete denture. Which statement is correct:
A. Self curing will distort the denture
B. Cold curing will not be strong enough because of small area of attachment
C. There is a possibility of occlusal disharmony
141. The setting expansion of casting investment is approximately
A. 0 to 0.1%
B. 0.1 to 0.5%
C. 0.5 to 1%
D. 1.1 to 1.6%
142. The contraction of gold alloys on solidifying is approximately:
A. 0.5%
B. 2.5%
C. 1.40%
D. 3%
143. The un-polymerized monomer in Self-cured resin is approximately:**
A. 0.5%
B. 2.5%
C. 5%
D. 10%
, 144. A volume shrinkage of methyl meta cyrelate monomer when is polymerized:**
A. 12%
B. 15%
C. 18%
D. 21%
147. Oil or water on impression for treatment casts causes
A. An increase of the quality
B. No alteration
C. A decrease of the quality
D. Bubbles on the cast
E. None of the above
148. What is Path of Insertion
A. The movement of the appliance from the points of initial contacts to path of final rest
position
B. The movement of the appliance from the points of rest position until it is not in contact
with teeth
149. What is Path of Removal
A. The appliances movement from the rest position to the last contacts of its rigid parts with
the supporting teeth
B. The movement of the appliance from the points of initial contacts to path of final rest
position
150. When correction preparation for re contouring of occlusal surface is to be applied.
Grinding only of the adjusted surface
A. Should not be felt flat
B. Require a flat crown
C. Require no contact with adjacent teeth
D. Should be felt flat
E. None of the above
151. To obtain a desired projection of occlusal loads, the floor of the occlusal rest should
A. Be convex
B. Slope from the marginal ridge towards Contact?? of abutment
Plus March & September 2014 MCQs in Prosthodontics
84. What is the purpose of making a record of protrusive relation and what function
does it serve after it is made
A. To register the condylar path and to adjust the inclination of the incisal guidance.
B. To aid in determining the freeway space and to adjust the inclination of the incisal
guidance.
C. To register the condylar path and to adjust the condylar guides of the articulator so that
they are equivalent to the condylar paths of the patient.
D. To aid in establishing the occlusal vertical dimension and to adjust the condylar guides of
the articulator so that they are equivalent to the condylar paths of the patient.
86. The main factor controlling a decision to increase the occlusal height of teeth for
extensive oral reconstruction is whether
A. The inter occlusal distance will be physiologically acceptable after treatment
B. There will be sufficient tooth bulk in the abutment teeth for proper retention of the crowns
C. At least two third of the original alveolar process will remain for adequate periodontal
support
D. The aesthetic appearance of the patient will improve sufficiently to warrant the planned
reconstruction
87. In planning and construction of a cast metal partial denture the study cast
A. facilitate the construction of custom/special trays
B. minimize the need for articulating
C. provide only limited information about inter ridge distance, which is
best assessed clinically
D. can be used as a working cast when duplicating facilities are not available
88. Periodontal damage to abutment teeth of partial denture with distal extension can
best be avoided by
A. Applying Stressbreakers
B. Employing bar clasps on all abutment teeth
C. Maintaining tissue support of the distal extension
D. Clasping at least two teeth for each edentulous area
E. Maintaining the clasp arms on all abutment teeth at the ideal degree of tension
89. Which of these muscles may affect the borders of mandibular complete denture
A. Mentalis
,B. Lateral pterygoid
C. Orbicularis oris
D. Levator angulioris
E. Temporal
90. Jaw relation of an edentulous patient has been established. The maxillary cast has
been mounted on an articulator without a face bow. You decide to increase the occlusal
vertical dimension by 4mm this will necessitate
A. Opening the articulator 4mm
B. A new centric relation to be recorded
C. A change in the condylar guide settings
D. An increase in the rest vertical dimension
91. Following extraction of the molar teeth**
A. The ridge height is lost more from the maxilla than from the mandible
B. The maxillary ridge will get more bone lost from the palatal aspect than the buccal
C. The mandibular arch is relatively narrower than the maxillary arch
D. Compared with the pre-resorption state, the mandibular ridge will lose more bone from the
lingual aspect than the buccal one.
92. Which of the following is a major disadvantage to immediate complete denture
therapy
A. Trauma to extraction site
B. Increased the potential of infection
C. Impossibility for anterior try in
D. Excessive resorption of residual ridge
100. What is the main purpose of using Stress breakers
A. To distribute the load between teeth and ridges
B. To distribute the load between the clasps and the face end of the saddle
C. It relieves the abutment tooth of occlusal loads that may exceed their physiologic strength
103. Which is more retentive form for anterior bridge
A. ¾ partial veneer crown
B. Class V inlay
C. Pinlay Veneer
D. Class III inlay with pins
125. Patient with class II division II; the lateral incisor is missing. You want to make a
fixed bridge which of the following is suitable:
A. Rocket bridge using central incisor as abutment
,B. Cantilever using central incisor
C. Fixed bridge using the central incisor and bicuspid
126. When repairing a fracture of lower complete denture. Which statement is correct:
A. Self curing will distort the denture
B. Cold curing will not be strong enough because of small area of attachment
C. There is a possibility of occlusal disharmony
141. The setting expansion of casting investment is approximately
A. 0 to 0.1%
B. 0.1 to 0.5%
C. 0.5 to 1%
D. 1.1 to 1.6%
142. The contraction of gold alloys on solidifying is approximately:
A. 0.5%
B. 2.5%
C. 1.40%
D. 3%
143. The un-polymerized monomer in Self-cured resin is approximately:**
A. 0.5%
B. 2.5%
C. 5%
D. 10%
, 144. A volume shrinkage of methyl meta cyrelate monomer when is polymerized:**
A. 12%
B. 15%
C. 18%
D. 21%
147. Oil or water on impression for treatment casts causes
A. An increase of the quality
B. No alteration
C. A decrease of the quality
D. Bubbles on the cast
E. None of the above
148. What is Path of Insertion
A. The movement of the appliance from the points of initial contacts to path of final rest
position
B. The movement of the appliance from the points of rest position until it is not in contact
with teeth
149. What is Path of Removal
A. The appliances movement from the rest position to the last contacts of its rigid parts with
the supporting teeth
B. The movement of the appliance from the points of initial contacts to path of final rest
position
150. When correction preparation for re contouring of occlusal surface is to be applied.
Grinding only of the adjusted surface
A. Should not be felt flat
B. Require a flat crown
C. Require no contact with adjacent teeth
D. Should be felt flat
E. None of the above
151. To obtain a desired projection of occlusal loads, the floor of the occlusal rest should
A. Be convex
B. Slope from the marginal ridge towards Contact?? of abutment
