Rx McQ's: April 2009

42.The most commonly used objective method to assess pain in patients is:

Dr. Sourabh Madaan

1.Facial pain scale 2.Knee jerk

3.H jerk 4.R-||| jerk

Ans. 1. facial pain scale

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Dr. Sourabh Madaan

a. Guaze 8 to 10. b. 10 to 12
c. 10 to 14. d. 12 to 16.

Ans:c ref Skinner’s 10th -496

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40.Allosteric inhibitors of liver glutamate dehydrogenase includes all except:

Dr. Sourabh Madaan

1. ATP. 2. GTP.
3. NADH. 4. FADH2

Ans: D ref Satyanarayan -358

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39.The most common site for CSF rhinorrhea

Dr. Sourabh Madaan

a. frontal bone b. ethmoid bone
c. tegmen tympani d. none

ANS. b ethmoid bone

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38.The largest sized pororsity is:

Dr. Sourabh Madaan

1. Micro porosity. 2. Pin hole porosity.
3. Suck back porosity 4. Gas inclusion porosity

ANS.3 ref Skinner’s 10th -518

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37.The minimum percentage of binder that should be present in the gypsum bonded investment is:

Dr. Sourabh Madaan

1. 10%. 2. 25%.
3. 50%. 4. 75%.

ANS.2 REF Skinner’s 10th -472

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36.The first dental college in India was started in Calcutta by Dr. Rafiuddin Ahmed in:

Dr. Sourabh Madaan

1. 1930 2. 1925
3. 1920 4. 1915

ANS.3 ref Soben Peter-12

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35.The ability of a test to identify correctly all those who have the disease, that is minimum false negative result is:

Dr. Sourabh Madaan

1. Predictivity 2. Negativity
3. Sensitivity 4. Specificity

ANS.2 ref Park-408

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34.Which of the following point is located at geographic center of ramus?

Dr. Sourabh Madaan

1. Ptm point. 2. Key point.
3. Xi point. 4. Gonion.

ANS. 3.ref pg 98 Gurkeerat Singh – 1st Ed.

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33.Specific gravity of enamel is:

Dr. Sourabh Madaan

a. 1.9. c. 2.5.

b. 2.2 d. 2.8.

ANS.d ref
Orbans-45

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32. Acroparesthesia is also called as:

Dr. Sourabh Madaan

1. Anesthesia.
2. Hyperesthesia.
3. Paraesthesia.
4. Coma.

ANS.3 ref Zargar - 13

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32.Which nerve passes through Menke’s cave?

Dr. Sourabh Madaan

1. Abducent. 2. Facial. 3. Trigeminal. 4. Trochlear.

ANS.3
REF. (BDC III - 100)

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31.Which of the following malocclusion has about 75% of hereditary component associated with it?

Dr. Sourabh Madaan

1. Class I.2.II.3.III.
4. Both 1 and 3.

ANS.3

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30.Which of the following is also known as scissors bite?

Dr. Sourabh Madaan

1. Simple posterior cross bite. 2. Buccal non occlusion.
3. Lingual non occlusion. 4. None of the above.

ANS. 2

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29.High FMA angle indicates:

Dr. Sourabh Madaan

1. Good prognosis.
2. Bad prognosis.
3. Good bone growth.
4. Class III relation

ANS. 2.
ref pg 111,Gurkeerat Singh – 1st Ed.

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28.Which of the following methods of study of physical growth are not longitudinal?

Dr. Sourabh Madaan

1. Craniometry. 2. Anthropometry.
3. Cephalometric radiography.
4. Both 1 and 2.

ANS. 1.
ref pg 8 Gurkeerat Singh – 1st Ed.

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27. Dental floss is used for cleanning which type of embrasures:

Dr. Sourabh Madaan

a) Type 1 b)2 c)3 d) all

ANS. A

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26. The most common cause of failure of the IDN “Inferior Dental Nerve” block is

Dr. Sourabh Madaan

A. Injecting too low
B. Injecting too high
ANS. A

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25. The average force required to condense gold with a condenser point of 1mm diameter is

Dr. Sourabh Madaan

a. 10 pounds. b. 15 pounds.
c. 20 pounds. d. 25 pounds.
Ans. B.

A force of 15 pounds in considered optimal and is well within the physiologic limits of the tooth. Forces of magnitude 3.75 pounds are recommended for condenser nibs of 0.5 mm diameter, 8.43 pounds for 0.75 mm diameter and 15 pounds for 1mm diameter nibs.

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24.Heart failure cells are seen in the following condition

Dr. Sourabh Madaan

CVC lung b.CVC liver c.CVC spleen

Ans.(a): Refg. 185/2nd Harish mohan

-CVC of lung occurs in test heart failure especially in rheumatic mitral stenosis so that there is consequent rise in pulmonary venous pressure.

-Histologically the breakdown of erythrocytes liberates haemosiderin pigment which is taken up by alveolar macrophages, so called heart failure cells, present in the alveolar lumina.

-CVC of liver occurs in right heart failure

-cut surface shows “nutmeg liver”.

-microscopically centrilobular haemorrhagic necrosis may be seen.

-CVC of spleen seen in right heart failure

-microscopically gamna-gandy bodies (or) syderofibrotic nodules are seen.

Ref.286/harshamohan.

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23.Negative staining is used to demonstrate

Dr. Sourabh Madaan

a. Bacterial spore b. Bacterial flagella

c. Bacterial capsule d. Bacterial fimbriae

Ans.(c): Ref: 14/6th Ananthararayana

Capsules may be readily demonstrated by negative staining in wet films with India ink, when they are seen as clear halos around the bacteria, against a black background

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