Medical MCQs

Page No. 9

Which of the following is correct?


aFibronectin helps in attachment of fibroblasts to collagen


bCementicles are found in periodontal ligament of order individuals


cThe large nerve fibres are myelinated and are concerned with discerment of touch


dAll of the above


View Answer All of the above

Which of the following is not correct ?


aIn case of pituitary gigantis, all sinuses assume a larger volume than normal


bIn chronic infections, the pain may mimic neuralgia of dental origin


cMalignant lesions of maxillary sinus produce their manifestations in maxillary teeth


dNone of the above


View Answer None of the above

Decrease the porosity


aH2O interferes with hygroscopic expansion


bH2O inhibits polymerization of dental resin


cH2O interferes with Crystallization of dihydrate


d Gypsum is slightly soluble in water and the surface of the cast will be eroded



The deoxidizing agent added to dental alloys is______________?


aPalladium


bSilver


cCopper


dZinc


View Answer Zinc

Function of wetting agents used in casting procedure is_________________?


aTo felicitate wetting of ring liner


bTo felicitate mixing investment


cTo reduce contact angle of liquid with max surface


dFor better wax elimination



The rate of tarnish and corrosion of class II cast material having VHN 200 is_______________?


a 0%


b2 to 3%


c 5 to 10%


d <1%


View Answer 0%

Within an hour after cementation of cast gold onlay patient complains of shooting pain every time the teeth comes together Most probable explanation is ______________?


aSupracocclusion of restoration


bRetained cement in gingival sulcus


cExcess acid in mix


dGalvanic current caused by gold onlay occluding with a large restoration



Modern dental noble metal casting alloys generally have equiaxed fine grain structures because of the incorporation of small amounts of______________?


aChromium


bIndium


c Irridium


dPalladium


View Answer Irridium

Which of the following properties of dental materials is time dependent_______________?


aCreep


bResillience


cElastic limit


dUltimate strength


View Answer Resillience

The commonest method of detection of diptheria carriers is_______________?


aSchick test


bDick test


cCasoni’s test


dCharles’ test


View Answer Schick test

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