69.Which type of dentin is most regular in structure?

A. Primary B. Secondary
C. Reparative dentin
D. All have the same

ANS>a
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62.A trauma patient is bleeding in the casualty. The immediate measure of management would be:

1.Suture the tongue with silk 2.Use towel clip

3.Oro-pharyngeal airway 4.Definite airway

ANS.4

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61.Gingivoplasty is not indicated in all the following except:

1.ANUG 2.Desquamative gingivitis
3.Acute herpetic gingivitis 4.Erosive lichen planus


ANS. 1


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60.The cavo surface angle for inlay cavity preparation :

a. 90 degree b. 150 degree
c.<90 d. 180

Ans. B

The angle at the junction of the walls of the cavity preparation and the external surface of the tooth.

It is of two types

[Ref Sturdevant 4th ed. Pg 300]

Butt joint

Lap / Slip joint

90o cavosurface angle

Advocated in amalgam restorations because amalgam is a brittle material and has low edge strength

Butt joint produces maximal strength for both tooth and amalgam.

It is also advocated in silicate and porcelain restorations

> 90 degree cavosurface angle.

Advocated in cast and composite restorations

30 – 40o marginal metal and 140 – 150o cavosurface angle.

Beveling enables superior adaptation and burnishability of marginal metal

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57. The primary germ layer endoderm is derived from :

a) Embronal disc b) Yolk sac
c) Amniotic cavity d) Placenta


ANS. b

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56.Lysis of fibrin is brought about by:

A. Plasmin B. Hyaluronidase
C. Collagenase D. Coagulase


Answer is: A- Plasmin. (Ref. K.D. Tripathi-5th )



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53.Broca’s area is:

1. 44 and 45.
2. 40 and 42.
3. 43 and 44.
4. None.


ANS>b
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50.In a obese person, BMI is :

a)>10 b)>20
c)>30 d)>40


ANS: C


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47.Perforators are not present at the:

a. Ankle b. Distal calf
c. Mid thigh d. Below the inguinal ligament

ANS. D
Explanation: -Perforators connect the superficial veins with the deep veins. -There are about 5 perforators along the great saphenous vein - 1.in the mid-thigh; 2. Below knee; 3, 4 & 5. near the lower leg and ankle. -Great saphenous vein itself drains into the femoral vein below the inguinal ligament.

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46.The secretory product of odontoblasts is:

a. Topocollagen. b. Calcium salts.
c. Mantle dentin. d. Hydroxyapatite

ANS.C

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44. The most common instrument grasp used is the

a. Pen grasp b. Inverted pen grasp
c. Palm and thumb grasp d. Modified palm and thumb grasp

ANS. a

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