Transcript Document

MCQ’s
• Q.1 Which muscle has no influence on neutral zone:
• A) masseter
• B) buccinators
• C) orbicularis oris
• D) quadratus labii superioris
• Q.2 Sir Wilfred Fish, described a denture as having how many surfaces?
• A) one
• B) two
• C) three
• D) four
• Q.3 The development and contour of the polished surface area becomes more
critical when:
• A) surface area of the impression surface increases and polished surface area
decreases
• B) surface area of the impression surface decreases and polished surface area
increases
• C) both increases
• D) both decreases
• Q.4 In the molar area, Dr. Fish described the cross section of stable
dentures to be in which shape?
• A) oval
• B) trapezoidal
• C) triangular
• D) rhomboidal
• Q.5 In the natural dentition, arch integrity and tooth position are
maintained when the forces generated by the musculature are:
• A) positive
• B) neutral
• C) negative
• D) high positive
• Q.6 If the dentures are triangular but not properly located within the
neutral zone, then:
• A) the lateral force will be equal and provide the equilibrium
necessary for a stable denture
• B) the lateral force will be unequal and provide the equilibrium
necessary for a stable denture
• C) the lateral force will be unequal and not provide the equilibrium
necessary for a stable denture
• D) the lateral force will be equal and not provide the equilibrium
necessary for a stable denture
• Q.7 Factor that do not influence the border extensions of the dentures:
• A) attachment of muscle
• B) tonus
• C) muscle position
• D) ligaments
• Q.8 Which of the following is/are the muscle of the lips:
• A) orbicularis oris
• B) zygomaticus major
• C) risorius
• D) all of the above
• Q.9 Teeth are guided into the neutral zone during which phase of
development:
• A) childhood
• B) adult
• C) puberty
• D) in natural dentition, teeth are not guided into neutral zone
• Q.10 The modiolus is a chiasma of how many facial muscles?
• A) 4
• B) 6
• C) 8
• D) 10
ANSWERS:
• 1- A
• 2- C
• 3- B
• 4- C
• 5- B
• 6- C
• 7- D
• 8- D
• 9- A
• 10- C