1. 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
Ans D
2. 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
3. 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
D. none
Ans C
4. 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%
Ans C
5. The un-polymerized monomer in Self-cured resin is approximately:
A. 0.5%
B. 2.5%
C. 5%
D. 10%
Ans A
6. A volume shrinkage of methyl meta cyrelate monomer when is polymerized:
A. 12%
B. 15%
C. 18%
D. 21%
Ans D
7. All of the following landmarks are included while making a post dam for
maxillary arch except
A) Pterygomaxillary notch
B) Hamular process
C) Fovea palatina
D) Vibrating line
Ans: B
8. The thickness of the spacer used in special tray is
A) 2.5mm
B) 2.0mm
C) 1.5mm
D) 1.0mm
Ans. B,
Wax spacer is used to provide the space in the tray for the final impression
material and allows the tray to be properly positioned in the mouth during
border molding procedures
Base plate wax covers the basal seat area except for labial and buccal
reflections and the posterior palatal seal area