AIIMS SR_SHIP Ortho 2015.pdf

TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 1.

Size of standard x-ray film

a.

1018 x 8 11 inch

b.

10 x 12 inch

c.

819 x 10 inch

d.

8 x 12 inch

Answer : B 2.

Which is not used as a flux

a. Boric acid b. Borax c. KF d. HF Answer: D 3.

MIP is a

a.

Maximum intensity intensity projection

b.

Medium intensity projection

c.

Minimum intensity projection

d.

Maximum intensity protection

Answer : A 4.

Not true about CBCT

a.

Less noise

b.

More noise

c.

Less soft tissue content

TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics

TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics d.

Decreased exposure

Answer : A

5.

Which of following is used for etching porcelain

a.

1.23% HF

b.

4% HF

c.

9.6% HF

d.

37% HF

Answer : C

6. Which orthodontics force is most most physiological for tooth movement

a.

Intermittent

b.

Interrupted

c.

Continuous

d.

Light and continuous

Answer : D 7.

Which statement is true

a.

Vertical deviation are more on landmarks which are on covered line point A * B

b.

Operator constantly locating the same cephalometric point based on the judgement in different different location is random error

c.

Both are true

d.

Both are false


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics Answer : C 8. Maximum amount of retraction that can be achieved with orthodontics treatment alone is

a.

7 mm

b.

16 mm

c.

8 mm

d.

21 mm

Answer : A

9.

Which is not true about orthodontic orthodontic force

a.

Increased OPG

b.

Decreased OPG

c.

Decreased RANK L

d.

Decreased RANK

Answer : A 10.

Which is not true about secondary alveolar bone grafting ?

a.

Grafted bone in case of lateral incisor

b.

Canine can erupt through graft

c.

Help in closure of fistula

d.

Orthognathic surgery can be done after SABG

missing not provided for side of implant

Answer : A 11.

Which is not true about canine impaction?

a.

Labial impaction is more common than palatal impaction


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics b.

Palatal impaction is more common than labial impaction

c.

Canine impaction is more common in females

d.

Unilateral canine impaction is more common

than bilateral

Answer : A 12. MEAW technique is used for

a.

Class III malocclusion with open bite

b.

Class II malocclusion with open bite

c.

Class II malocclusion with retrognathic

d.

Class III with deepbite

Answer : A 13. Direct correlation between response

degree of injury and intensity

a.

Regional acceleratory

b.

Rapid acceleratory phenomenon phenomenon

c.

Regional acquired phenomenon phenomenon

d.

Randomly acquired phenomenon phenomenon

of healing

phenomenon phenomenon

Answer : A 14. Direction of force by class III elastic in face mask

a.

15-20o downwards from occlusion

b.

15-20o upwards from occlusion

c.

35-40odownwardsfrom occlusion

d.

5-10odownwardsfrom occlusion

Answer : A


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 15. Activity index of GCF shows

a.

IL-B/IL-RC

b.

IL-RC/IL-B

c.

RANK / OPG

d.

OPG/ RANK

Answer : A 16. Sox-9 is responsible for craniofacial growth and it shows shows :-

a.

Chondrocyte differentiation

b.

Osteoblast differentiation

c.

Osteoclast differentiation differentiation

d.

None

Answer : A

17. Most common malocclusion for root resorption

a.

Class II Div 2

b.

Class II div 1

c.

Class III

d.

Class II open bite

Answer : A 18. Most prevalent habit is

a.

Tongue thrust



Mouth breathing

c.

Thumb sucking

d.

Nail biting

Answer : A 19.For type II backward rotation of mandible center of rotation rotation lies at

a.

At TMJ

b.

At incisal edge

c.

At premolar

d.

At most distal occluding

molar

Answer : D 20. IOTN not used for malocclusion

a. Bimaxillaryprotrusion b.

CLP

c.

Openbite

d.

Crowding

Answer : A

21. In ABO discrepancy index, patient have DI is

a.

full cusp class II malocclusion

2 pts per side



4 pts per side

c.

8 pts per side

d.

1 pts per side

Answer : B 22. A patient has class II subdivision on left side KATZ premolar KATZ premolar classification shows

a.

0 mm discrepancy at R & L side

b.

0 mm discrepancy on R & +3 mm

c.

0 mm discrepancy on R & -3 mm on L side

d.

3 mm on R side &-3 mm on L side

on L side

Answer : B 23. In RME

a.

one quarter turn once daily

b.

two quarter turns in twice a day

c.

two quarter turns in once a day

d.

one quarter turn in morning and one in evening

Answer : D 24. Prevalence by class II malocclusion in north India

a.

15 %

b.

34 %

c.

22 %

d.

32 %

Answer : A



25. For vertical growth bite

a.

registration

Bite beyond freeway space and little

sagital sagital

advancement

b. Large advancement c.

Bite registration within freeway space

d. Same advancement for sagital to

vertical

Answer : A 26. Which loop has great mechanical advantage of no residual movement

a.

Rickets

b.

Gjessing

c.

Opus

d.

Mushroom

Answer : B 27. One couple system produced by

a. Centred V- bend b. Off centred V- bend c. Molars uprighting spring d. Step bend Answer : C


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 28. Not true about V-bends

a.

Neutralise anterior and

posterior bend

b.

Bend towards gingival

direction

c.

Hook soldered on it

d.

It delivers the torque

Answer : D

29. When edgewise prescription prescription used and 1st , 2nd& 3rd order bends given, additional bend needs

a.

Progressive Lingual root torque

b.

Progressive Buccal root torque

c.

Continuous Lingual root torque

d.

Continuous Buccal root torque

Answer : B 30. For intrusion of lateral incisor

a.

2 horizontal loops towards

each other

b.

2 horizontal loops mesialy directed

c.

2 horizontal loops distally directed

d.

2 horizontal loops away from

each other

Answer : A


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 31. Type III Cu NiTi is used for

a.

Patient has low to normal pain

threshold

b.

Where rapid tooth movement

required

c.

More force required

d.

Patient has good pain

threshold

Answer : A 32. Trifocal ellipse is

a.

Braider’s arch form

b. Rickets arch form c. Mushroom shaped form d. Bonwill Hawley form Answer : A

33. Step Step bend placed between 2 incisors produres

a.

Equal and opposite direction

movement

b.

Equal and same direction movement

c.

Unequal and same direction

d.

Unequal and opposite

movement

direction

movement

Answer : B


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 34. MRI used for TMJ effusion

a. T1W

b.

T2W

c. Protein density d.

Spinning property

Answer : B

35. In the field of orthodontics the 1st MRI study of TMJ TMJ in 1998 done on

a.

Herbst appliance imaging for

b.

Imaging of TMJ joint

c.

For bionator study of TMJ

d.

For Forsun study

TMJ

Answer : A

36. William DOWN has given which types of face

a.

Retrognathic, Mesognathic,

Prognathic

b.

Vertical, horizontal, average

grower

c.

Forward & backward rotator

d.

Hypo & Hyper divergent

Answer : A


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 37. Analysis gives vertical facial height in degree

a. Sassauni b. Jaraback c. Upper : lower facial height d. Rickets Answer : D 38. Facial axis angle of rickets

a.

Superior angle between Ba-N &Pt-Gn

b.

Posterior angle between Ba-N &Pt-Gn

c.

Anterior angle between Ba-N &Pt-Gn &Pt-Gn

d.

Inferior angle between Ba-N &Pt-Gn

Answer : D 39. Upper molar position in Ricket analysis measured from

a. PTV b. From occlusal plane c. From palatal plane d. Perpendicular Perpendicular from Nasion Answer : A 40. Dimension of Rickets utility arch

a.

.016 x .016 blue elgiloy

b.

.016 x .022 blue elgiloy

c.

.016 x .022 ss wire



.011x .025 TMA

Answer : A

41. CMOS is a

a. Complimentary metal oxide semiconductor b. Complimentary minal oxide semiconduct semiconduct or c. Complimentary mechanical oriented semiconductor d. Connective mineral oxide semiconductor semiconductor Answer : A 42. DICOM is a

a.

Digital imaging and communication

in medicine

b.

Direct imaging and communication

in medicine

c.

Dental imaging and communication

in medicine

d.

Digital ion complimentary oxide metal

Answer : A 43. Statement not true about PA Ceph

a.

Midpoint of 2-2 from ANS can be

taken as midline

b.

on tracing sheet pt right on R side

c.

Gramans analysis not related to normative data



Can be used for facial asymmetry

Answer : B 44. Steiners method for superimposition used

a.

Superimposition Superimposition on SN Plane registered at S

b.

Superimposition Superimposition on SN Plane registered at N

c.

Superimposition Superimposition on Ba-N registered at N

d.

Superimposition Superimposition on SN Plane registered at Ba

Answer : A

45.

Point shows high error possibility possibility along X-axis

a. Orbitale b. Point A c. Condylion d. Point B Answer : A 46. Maximum loading force for microimplex

a. 300 gm c.

b.

150 gm

350 gm d.

500 gm

Answer : D Q47. Muscles of facial expression are derivative of

a. 1st arch


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics b. 2nd arch c. 3rdarch 4tharch

d. Answer : B

Q48. Most common complication of orthognathicsurgery

a.

Malunion

b.

Loss of neurosensation neurosensation due

c.

Erosion on condyle

d.

Fracture

to

injury of inferior alveolarnerve

Answer : B 49. Increase FOV of CBCT causes

a.

Increased patient exposure

b.

Deceased contrast

c.

Increase noise

d.

DECREASED scanning time

Answer : A 50. GOSLON index5 for CLP shows

a.

Can be treated by orthodontic treatment alone

b.

Orthognathic surgery only treatment

c.

Can be corrected by orthodontic and orthopedic treatment

d.

Describe only in sagittal plane

Answer : B


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 51. Malocclusion not required retention after orthodontic treatment

a. Deepbite b. Rotation c. Anterior crossbite d. Open bite Answer : C Q 52. International commission of radiation protection protection (ICRP) recent recommondatio for radiation enforce is

a. 2007 b. 2013 c. 1997 d. 2003 Answer : A 53. Dc point is located on

a. Centre of meek meek of condyle condyle where bars Ba Na coincide b. Center of Ramus c. Center of mandible d. Center of maxilla Answer : A


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics Q54. latency period of distraction osteogenesis is

a.

5-7 days

b.

2-3 days

c.

5-7 weeks

d.

15-20 days

Answer : A 55. More chance of relapse is found in

a.

Genioplasty with augmentation

b.

Genioplasty with reduction

c.

BSSO with prognathism

d.

BSSO with retrognathism

Answer : D 56. Least common impaction is

a. Lateral incisor b. Second premolar c. Central incisor d. Maxillary canine Maxillary canine Answer : A 57. Which arch is absent in human embryo development

a. 6th b. 4th c. 5th d. 7th Answer : D



58. Chemokines produce by orthodontic force due to

a. Cell proliferation b. Cell differentiation c. Cell death d. Cell hypertrophy Answer : C 59. Gold standard diagnosis for for OSA is

a. Polysomnography b. Rhinomanometry c. Lateral ceph d. Neuroendoscopy Answer : A Q60. Nerve for 1stpharyngeal arch is

a. Glass pharyngeal nerve b. Facial nerve c. Trigeminal nerve d. Vagus


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics Answer : C Q 61. IOTN is not use for which malocclusion

a. Open bite b. CLP c. Bimaxillary protrusion d. Crowding Answer : C

62. Ti grade Y is a

a. Monophasic b. Biphasic c. Triphasic d. Tetraphasic Tetraphasic Answer : B 63. Stable element in Ti6AL4Vin alpha phase

a. V b. Al c. Ti d. Al, V


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics Answer : B Q64. Resistance to corrosion is due to

a. Ti(OH)2 b.

Ti N

c. TiO d.

Ti

Answer : C 65. Most crucial in primary stability is

a. Cortical bone thickness b. Helix angle c. Diameter of trip d. Length of implant Answer : A

Q66. All are advantage of CBCT over MDCT MDCT except

A. More soft tissue contrast B. Less radiation exposure C. Less metal artifact D. Scan time is less


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics Answer : A 67. A Patient come with OPG and cephalogram with condyle enlargement of right side, further needed is

a.

CBCT b.

TC-99

c.

MDCT

d.

MRH

Answer : B 68. Centre of resistance of single rooted tooth is at

a.

1/3 of root length from alveoler crest.

b.

2/3 of root length from alveoler crest

c.

3/4 of root length from alveoler crest. crest.

d.

At the junction of crown and root.

Answer : A 69. Drug for pain that does not affect the Orthodontic tooth movement

a. Acetamenophen b. Ibuprofen c. Aspirin d. Diclofenac sodium Answer : A


TARGET MDS AIIMS- SR-SHIP Jan 2015 Orthodontics 70. Patient reports with retained deciduous canine, impacted permanent canine and retrognathicmandible. X-rays that are best suitable for diagnosis are i. Lateral cephalogram ii. OPG iii. MDCD iv. CBCT

a.

I only

b.

I, ii

c.

Iv only

d.

i, ii, iv

Answer : C 71. A patient came with lingually placed lateral lateral incisor and retrognathic mandible and CVMI stage –III Best treatment modality is

a.

fixed therapy to correct incisor (L1) followed by functional therapy

b. functional therapy followed by fixed therapy c.

correction of incisors with removable appliance

d. only fixed appliance therapy Answer : A 72. In burstone’s T-loop, T-loop, activation achieved is

a.

6mm b.

4 mm

c.

2 mm d.

8 mm

Answer : A 73. In Holdaway’s ratio 3:1 shows

a.

Upper lip to upper incisor relation

b.

Lower lift to lower incisor relation

c.

Lower incisor to chin relation



Upper lip to lower incisor relation

Answer : C

74. Xi-point is the

a.

Geometric centre of condyle

b.

Geometric centre of ramus

c.

Geometric centre of maxilla

d.

Geometric centre of mandible mandible symphysis

Answer : B 75. Wits apparatus given by

a.

Wits b.

Jacobson

c.

Manifield

d.

Down

Answer : B 76. A pattern of maxilla to mandible in PA cephalogram is

a.

50%

b.

80%

c.

50%

d.

20%

Answer : B 77. Why Ti not used for orthodontic purpose

a.

Ti alloy only can give enough

strength to implant



Biocompatibity is more for Ti

c.

Ti alloy has less strength

d.

Ti alloy has more strength

Answer :A 78. Prosthion is located in

a. Mandible b. Antrum cranial base c. Maxilla d. Ramus Answer : C

79. T – point superimposition superimposition is registered at

a. Occiptal condyle b. Mandibular condyle c. Sella d. Nasion Answer : A 80. Maxillary superimposition related to assess tooth movement by ABO

a.

Registration on palatal contour of

palate

b.

Registration on lingual curvature of

palate

c.

Registration along ANS and PNS plane registered at ANS



superimposition superimposition along ANS and PNS

plane registered at PNS

Answer : B 81. When a distal force applied on bracket on labial crown of central incisor curve

a.

Translation occurs in distal direction

b.

Pure rotation occurs

c.

Distal tipping and clock wise rotation

d.

Distal tipping & anti clock wise rotation

Answer : C 82. Wilkodontics is the other name of

a.

Periodontally accelerated osteogenic osteogenic orthodontics

b.

Corticomyfacilitating orthodontic

c.

Dentoalveolardistraction

d.

Dental distraction

Answer : A

83. A relationship between overjet and trauma

a.

No relation

b.

1 mm increase in overjet increases 13% chance of trauma.

c.

1mm increase in overjet increases 25% chance of trauma



Increased overjet decreases the chances of trauma

Answer : B 84. Which is true about class – III malocclusion

a.

It has reduced anterior cranial base due to

orthocephalization orthocephalization

b.

Nasomaxillary area increased.

c.

Glenoid fossa shows no difference between class

d.

Anterior cranial bone length same for class – I and class – III

– I

and class III

Answer : A


AIIMS SR_SHIP Ortho 2015.pdf

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