Delayed expansion of the amalgam will be in the range of 1) 2 2) 200 3) 400 4) 500
Conservative DentistryAnswer: 3
The term ABREFACTION refers to 1) Non-carious wear of the tooth structure due to chemico mechanical action 2) Microfractures occuring at the cervical areas of the tooth due to eccentric forces 3) Both A and B 4) None of the above
Conservative DentistryAnswer: 2
The portion of the tooth where the enamel rods are perpendicular to the tangent of the surface 1) Middle thirds of all axial surfaces 2) Incisal or occlusal thirds 3) Gingival thirds 4) All of the above
Conservative DentistryAnswer: 1
Twist spiral drills used for making pin channels should 1) Be used with speed below 500 rpm 2) Be used only in clockwise direction 3) Be made of high quality cutting steel 4) All of the above
Conservative DentistryAnswer: 4
As a rule the diameter of the sprue should be 1) Equal to the thinnest portion of the wax pattern 2) Should always be made with 14 gauge 3) Equal to the thickest portion of the wax pattern 4) Should be equal to the length of the wax pattern
Conservative DentistryAnswer: 3
The main purpose of a gingival bevel in an inlay or onlay is 1) Improves the retention form of the cavity 2) Improves the resistance for of the cavity 3) Removes unsupported enamel and compensates for the casting shrinkage 4) Improves the aesthetics of the restoration
Conservative DentistryAnswer: 3
Which of the following is commonly recommended procedure for debridement 1) Citric acid 2) Hydrogen peroxide 10% 3) Air and water spray 4) Hydrochloric acid
Conservative DentistryAnswer: 3
Pain related to the placement of a new amalgam restoration is commonly associated with 1) Sweets 2) Cold 3) Pressure 4) Galvanic currents
