50. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with incompetent lips and her facial profile is more convexity . Which one is the most likely cause by?

Lips trap

Tongue trust

Moth breaching

Thumb sucking

51. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with tongue trust and her facial profile is more convexity . Which one is the most likely kind of malocclusion?

Open bite

Deep bite

Cross bite

Scissors bit

52. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with incompetent lips and her facial profile is more convexity . Which one is the most likely extraction for this case?

4 teeth of 1st premolars

4 teeth of 2nd premolars

4 teeth of 2nd molars

4teeth of 1st molars

53. The most likely clinical feature of Bimaxillary protrusion ?

Deep bite

Retrognatic jaws

Facial profile is concave

Lips incompetent

54. Which causes can make Root resorption?

Light force

Optional force

exceesive force

Ideal force

55. Which one most likely correct answer for Treatment of Anterior Open bite?

Stop any habits

Orthodontic treatment

Orthognathic approach

Combination of treatments

56. Before orthodontic treatment, which one we should do?

Do as patients order.

Bad oral hygiene

Select only patient with good oral hygiene for orthodontic treatment.

Check with parents

57. Which one is the most harmful effects of orthodontics tooth movement?

Change position of teeth

Root resorption

Healthy gum

Reconstruction bone

58. Canine Mesially inclined eruption which indication we should do extraction ?

1st Premolar

1st Molar

Lateral incisor

2nd Molar

59. Abnormal tooth mobility is because of ?

Used light force.

Appliance not worn full-time and Traumatic occlusion

Tooth not contact each other

Cleaning teeth

60. Tooth pain when we move it because of ?

Too much forces

Enamel caries

Gingivitis

Light force

61. Which one is more likely for orthodontic treatment?

Missing many teeth in a quadrant

Crowding or anterior cross bite

Severe skeletal III

Severe skeletal II

62. Which one more likely skeletal pattern of ANB normal?

1-3 degree

2-4 degree

> 5degree

<1degree

63. Which one is likely the OJ of class III malocclusion?

Overjet 2-4 mm

Over jet >7mm

Overjet <1 mm

Overjet 3-5 mm

64. Which one more likely of Class II division1 malocclusion?

Upper incisors are Proclined

Upper incisors are Retroclined

OJ < 2mm

Always deep bite

65. Which one more likely of Class II division2 malocclusion?

Upper incisors are proclined

Upper incisors are Retroclined

OJ < 2mm

Openbite

66. Which Classification of Malocclusion when the OJ is increase?

class I

class II div1

class II div 2

class III

67. Which Classification of Malocclusion when the OJ Normal?

class I

class II div1

class II div 2

class III

68. which kinds of Malocclusion the Over Jet is decrease and retroclined front teeth?

class I

class II div1

class II div 2

class III

69. Which appliance can correct anterior cross bite?

Orthognatic surgery

Removable appliance within Z spring or T spring and posterior bite plane

Retainer

Class II twinblock

70. Posterior cross bite can correct by?

Orthognatic surgery

Removable appliance within screw expansion and anterior bite plane

Retainer

Class II twin block

71. What kind of appliance for correcting skeletal class II in growing patients?

Orthognatic surgery

Removable appliance within screw expansion and anterior bite plane

Retainer

Class II twin block

72. Severe skeletal of open bite can correct only by?

Orthognatic approach

Removable appliance within Z

Fixed appliances

Class II twin block

73. If there is a lot of root resorption we should do as following?

Stop activating appliance for at least 6 to 8 weeks.

Use heavy force to move the teeth

Periodontal disease

Filling caries.

74. Which one is skeletal feature of Class III?

Maxillary protruded

Retrognatic position of mandible

Maxillary short/small related to mandible broad

Acute Gonial angle

75. Which one is the more likely of skeletal feature of Class II?

Maxillary protruded and Retrognatic position of mandible

ANB <1degree

Maxillary short/small related to mandible broad

Maxillary retrognatic

76. The clinical dental feature of Class III?

Broad upper arch with crowded

Over jet decrease or reverse

Bimaxillary protrusion

Over jet increase

77. Clinical feature of Anterior Open Bite?

Long face

Lips competent

Deep bite

Cross bite

78. Which one is the best method to create space?

Extraction

Stripping

Close space

Retroclined teeth

79. Lips competent most seen in cases?

Deep bite

Long upper lips

Proclined front teeth

Class II division 2 malocclusion

80. Choose the correct components for reduce OJ?

Z- spring

T- spring

Robert retractor

Bucal canin retractor

81. Choose the correct components for increase OJ?

Z- spring

T- spring

Robert retractor

Bucal canin retractor

82. Which is possible component for correcting anterior cross bite?

Screws expansion

Quadhelix

Coffin spring

RME

83. Which one is more likely components for Expansion arch?

Z- spring

Labial bow

Adam Spring

Screw expansion

84. Which Appliances cannot correct anterior cross bite?

Retainer

Removable appliance with Z or T spring

Ice cream stick/ tongue pressure

Fixed appliance

85. Which one is not Active Component?

T-spring

Z- spring

South end clasp

Finger spring

86. Which Active Component can use as retention?

T-spring

Robert retractor

Labial bow

Finger spring

88. Which one is the cause of Anterior cross bite?

retained lower deciduous incisors

premature contact/ pseudo class III

Small lower arch and very broad Upper arch

Missing lower teeth

89. Which one is the Clinical feature of Anterior cross bite?

Reverse overjet

Overjet > 7mm

Small lower arch and very broad Upper arch

Open bite

90. Which movement is more likely for removable appliance ?

Tipping movements

Bodily movements

Intrusion

Extrusion

91. The clinical feature of Class II division 1 malocclusion:?

Proclined upper incisors

Overjet reduce

ANB < 4degree

Anterior Crossbite

92. Which is the more likely clinical feature of Class II division 2 malocclusion:?

Retroclined upper central Incisors with OJ reduced

Overjet reverse

Open bite

Procline upper incisors

93. In case of class II division 2 malocclusion LFH may?

Long

Short

Medium

Normal

94. When incisal edge of lower incisors touch in palate, it’s called ?

Traumatic bite

deep bite

Cross bite overbite

Openbite

95. Which one is the Keys of angle’s classification are ?

Molars relationship

Incisors relationship

Canine relationship

Premolar relationship

96. Which one is the BSI classification are ?

Molars relationship

Incisors relationship

Canine relationship

Premolar relationship

97. Which one is most common seen in class II division 1 malocclusion ?

Overjet increased

Overjet decrease

Overjet & overbite reduced

Over bite & over jet is zero

98. Which treatment plan to reduce deep bit ?

Posterior bite plane

Anterior bite plane

Bi blocks

Labial bow with finger spring

100. When the maxillary teeth placed completely inside or outside of mandibular teeth called-?

cross bite

sicissors bite

deep bite

open bite

101. In case of class III malocclusion, the upper incisors are ?

Proclined

Retroclined

Spaced

Rotated

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