SUBJECT WISE MCQs
PROSTHO
543. Which is correct in regards to shade selection of crowns
A. It should be selected before starting preparation
B. Chroma is the lightness/darkness of colours
C. Value is the colour itself
D. Hue is the concentration of colours
Ans : A
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.
Ans :C (important)
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
ans : A
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
Ans : A
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
Ans : C
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
Ans : C
Reference : http://www.dentistry.bham.ac.uk/ecourse/pros/docs/anatomy.pdf
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
Ans : B
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 loss 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.
Ans : B(quest rptd in cawson and scully and important as well )
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
Ans : C
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
ans : C
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
Ans : C
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
Ans : C
143. The un-polymerized monomer in Self-cured resin is
approximately**
A. 0.5%
B. 2.5%
C. 5%
D. 10%
, Ans : C
144. A volume shrinkage of methyl meta cyrelate monomer when
is polymerized**
A. 12%
B. 15%
C. 18%
D. 21%
Ans : D
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
Ans : C
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
ans : A
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
ans : A
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
Ans A
151. To obtain a desired projection of occlusal loads, the floor of
PROSTHO
543. Which is correct in regards to shade selection of crowns
A. It should be selected before starting preparation
B. Chroma is the lightness/darkness of colours
C. Value is the colour itself
D. Hue is the concentration of colours
Ans : A
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.
Ans :C (important)
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
ans : A
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
Ans : A
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
Ans : C
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
Ans : C
Reference : http://www.dentistry.bham.ac.uk/ecourse/pros/docs/anatomy.pdf
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
Ans : B
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 loss 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.
Ans : B(quest rptd in cawson and scully and important as well )
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
Ans : C
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
ans : C
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
Ans : C
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
Ans : C
143. The un-polymerized monomer in Self-cured resin is
approximately**
A. 0.5%
B. 2.5%
C. 5%
D. 10%
, Ans : C
144. A volume shrinkage of methyl meta cyrelate monomer when
is polymerized**
A. 12%
B. 15%
C. 18%
D. 21%
Ans : D
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
Ans : C
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
ans : A
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
ans : A
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
Ans A
151. To obtain a desired projection of occlusal loads, the floor of
