Orthodontic (Chum Mony) II

61. Resistance to tooth movement is related to the following:? I. Alveolar bone II. Basal bone III. Teeth IV. Intercuspation of teeth
σ I, II and III
σ I, II and IV
σ I, III and IV
σ I, II, III and IV
62. Source of intraoral anchorage:?
σ musculature
σ neck
σ head
σ occipital region
63. Which among the following are anchorage according to the number of units? I. single II. Compound III. Intra maxillary IV. reinforced
σ I, II, III and IV
σ I, II and III
σ I, II and IV
σ II, III and IV
64. The anchorage in which the resistance of one or more dental units are utilized to move one or more opposing dental units.?
σ simple
σ stationary
σ reciprocal
σ reinforced
65. The anchorage in which the units situated in one jaw is used to effect tooth movement in the other jaw.?
σ intramaxillary
σ intermaxillary
σ intraoral
σ extraoral
66. It is described as very broad, short faces with square dental arches.?
σ brachycephalic
σ dolicocephalic
σ mesocephalic
σ none of the choices
67. A mesocephalic face has a/an____ dental arch form?
σ round
σ narrow
σ average
σ all are corrects
68. Predominant type of malocclusion seen in mixed dentition is?
σ crowding
σ anterior open bite
σ class II division 1
σ all are corrects
69. Which among the following are variations in facial type? I. oligocephalic II. Brachycephalic III. Dolicocephalic IV. mesocephalic
σ I, II, III and IV
σ I, II and III
σ I, II and IV
σ II, II and IV
σ II and IV
70. A system of malocclusion that uses gnathostatic approach.?
σ Angle
σ Dewey-Anderson
σ Simon
σ Ackermann-Profitt
71. Unilateral mesiocclusion with zero over jet and overbite.?
σ class III type 1 subd.
σ Class II type 2 subd
σ Class III type 3 subd
σ all are corrects
72. Neutroclusion with labioversion of maxillary centrals and buccoversions of mandibular 1st premolar.?
σ class 1 type 2 & 3
σ class 1 type 2 & 4
σ class 1 type 2 & 5
σ all are corrects
73. Unilateral distoclusion with linguoversion of maxillary centrals and labioversion of lateral incisors?
σ class II div 1 subd
σ class II div 2 subd
σ class II div 2
σ all are corrects
74. A supraverted mandibular premolar with respect to Frankfurt horizontal plane is said to be in?
σ A. contraction
σ B. abstraction
σ C. attraction
σ D. distraction
75. A narrow maxillary arch with respect to midsagittal plane is said to be in?
σ protraction
σ retraction
σ contraction
σ distraction
76. Cleidocranial dysostosis:?
σ inhibited growth of mandible
σ micromandible
σ abnormal resorption of deciduous dentition
σ late eruption of permanent teeth
σ mandibular dysostosis
77. Vogelgesicht:?
σ inhibited growth of mandible
σ micromandible
σ abnormal resorption of deciduous dentition
σ late eruption of permanent teeth
σ mandibular dysostosis
78. Pierre-robin syndrome:?
σ inhibited growth of mandible
σ micromandible
σ abnormal resorption of deciduous dentition
σ late eruption of permanent teeth
σ mandibular dysostosis
79. Treacher-collin syndrome?
σ inhibited growth of mandible
σ micromandible
σ abnormal resorption of deciduous dentition
σ late eruption of permanent teeth
σ mandibular dysostosis
80. The following landmarks are used to determine the protrusiveness of the mandibular base in relation to the cranial base.?
σ sella, nasion, supramentale
σ sella, nasion, subspinale
σ sella, orbitale, pogonion
σ none of the above
81. Angle tha determines the position of the most protrusive mandibular central incisor to the mandibular plane.?
σ ANB
σ SNA
σ SNB
σ Y-axis
σ none of the above.
82. The best alternative diagnostic aid in the absence of cephalometric headplate.?
σ study cast
σ radiograph
σ facial photographs
σ all of the above.
83. Abnormal habit often known as a residuum of the finger sucking habit.?
σ bruxism
σ thumb sucking
σ nail biting
σ tongue thrusting
84. Word used in Orthodontics which means resistance to the displacement:?
σ Tipping
σ Rotation
σ Anchorage
σ Translation
85. Movement of teeth in which the crown and root moved in the samed direction.?
σ rotation
σ translation
σ tipping
σ combination of tipping and rotation
86. The bone resorption that follows hyalinization is:?
σ frontal
σ direct
σ undermining
σ all are corrects
87. This type of force occurs when removable appliances are used.?
σ continuous
σ interrupted-continuous
σ intermittent
σ tipping
88. Abnormal lip activity is almost always associated with:?
σ Class II, div. 1
σ Class III
σ Class III
σ Class
89. Treatment for developing anterior cross bite:?
σ inclined plane
σ tongue crib
σ palatal crib
σ verstibular screen
σ tongue blade
90. Lip bumper is being used for:?
σ lip biting
σ cheek biting
σ lip sucking
σ lip biting and lip sucking
91. The sum of the widths of CDE is generally:?
σ same as that of permanent successors
σ greater than that of permanent successors
σ less than that of permanent successors
σ not related to that of permanent successors
92. An inhibited growth of the mandible due to ankylosis of the TMJ will result to:?
σ cretinism
σ Amelia
σ Vogelgesicht
σ Paget’s disease
σ None of the above
93. System that describes the antero-posterior relationship of the maxilla and the mandible based on the position of the first permanent molar.?
σ Simon’s
σ Angle’s
σ Ackermann-Profitt’s
σ Lischer’s
94. Unilateral distoclusion with linguoversion of the maxillary central incisors is also known as:?
σ Class II Div. 2
σ Class II div. 2 subd
σ Class II div.
σ Class II Div. 1
95. Lower molar is distally positioned in relation to upper molar.?
σ Class I
σ Class II
σ Class III
σ all are corrects
96. Major growth mechanism of cranial vault?
σ apposition
σ interstitial
σ desmocranium
σ synchondrosis
97. As maxilla is translated downward and forward, bone is removed from __ surface?
σ anterior
σ posterior
σ lateral
σ all are corrects
98. Which of the following are principal growth sites of mandible? I. Posterior surface of ramus II. Condyle III. Coronoid process IV. chin
σ I, II, III and IV
σ I, II and III
σ I, III and IV
σ I, III and IV
σ II and IV
99. Eruptive tooth movement begins when?
σ crypt is present
σ Nolla’s stage 5
σ Root begins to form
σ Nolla’s stage 8
σ None of the above.
Incisor liability:?
σ difference between deciduous and permanent incisors , the result of which is positive.
σ Difference between deciduous and permanent incisors, the result of which is negative
σ Difference between primate and leeway space
σ Difference between interdental and primate space
101. Distal step terminal plane results to:?
σ Class I
σ Class II
σ Class III
σ all are corrects
102. Changes in facial growth in adult.?
σ facial skeleton changes greater than soft tissue profile
σ shortening of nose
σ flattening of lips
σ all of the above.
103. Intrauterine molding may lead to…?
σ mandibular prognathism
σ maxillary deficiency
σ anterior open bite
σ maxillary protrusion
104. Hapsburg family has a strong genetic influence on__?_
σ retruded maxilla
σ retruded mandible
σ overgrowth maxilla
σ protruded mandible
105. Hyalinized areas:?
σ necrotic or cell free area
σ presence of osteoclast
σ with cellular elements
σ with macrophages
Force level declines steadily to zero between activations.?
σ continuous
σ interrupted
σ intermittent
σ none of the above
107. Two forces equal in magnitude and opposite in direction.?
σ moment
σ couple
σ center of rotation
σ center of resistance
Posterior crossbite during mixed dentition can be treated by?
σ extraction
σ expansion
σ chin cap
σ regaining space
σ space maintainer
The best time to influence growth is during the time of greatest change, they are best treated, that is before and during puberty.?
σ First statement is true, the second statement is false
σ First statement is false, the second statement is true
σ Both statements are true
σ Both statements are false
Initial ossification of these bones preceeded peak growth in boys.?
σ hook of hamate
σ ulna and radius
σ pisiform
σ metacarpals and metatarsals
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