# Of the following local anesthetics, which has intrinsic vasoconstrictive action? (MAN -97)

# Of the following local anesthetics, which has intrinsic vasoconstrictive action? (MAN -97)
a) Cocaine
b) Procaine
c) Xylocaine
d) Bupivacaine

The correct answer is : A. Cocaine

All local anaesthetics except cocaine are synthetic compounds and they are vasodilating in nature. Cocaine is a natural local anaesthetic agent and causes local vasoconstriction.

 (Cocaine increases the vasoconstrictive action of adrenaline. If LA with adrenaline is given risk of death is more in cocaine abusers. So they are known as  'walking time bombs.'

Which of the following is the preferred local anesthetic technique for hemophilics? (MAN -01)

# Which of the following is the preferred local anesthetic technique for hemophilics? (MAN -01)
a) Nerve block
b) Supraperiosteal
c) Intraligamentary
d) Field block

The correct answer is C. Intraligamentary.

 In hemophilics to avoid complications,  Intraligamentary  (an intraosseous technique) method of local infiltration technique is preferred. In this technique, the solution is deposited in depth of gingival sulcus. The needle should be inserted apically into the bone until resistance is met.

# Which of the following may least be used as an abutment: (PGI -2K)

# Which of the following may least be used as an abutment: (PGI -2K)
a) Tooth with minimum crown
b) Tooth with short tapered crown and conical roots
c) Rotated and tipped tooth
d) Pulp treated tooth

The correct answer is: B. b) Tooth with short tapered crown and conical roots

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# Epitheloid cells are seen in all of the following except (MAN -02):

# Epitheloid cells are seen in all of the following except (MAN -02):
a) Tuberculosis
b) Granulation tissue
c) Syphilis
d) Sarcoidosis

The correct answer is : B. Granulation Tissue

Epitheloid cells are a collection of modified macrophages present in granuloma. Granulomas occur in Tuberculosis, Leprosy, syphilis, Actinomycosis, Sarcoidosis, etc.