Tick the odd one out 1. Degassing 2. Desorbing 3. Annealing 4. Metalizing
Conservative DentistryAnswer: 4
Short bevel extends 1. In almost 2/3 of the enamel 2. All of the enamel and half of the dentin 3. All of the enamel only 4. 1/3 of the enamel
Conservative DentistryAnswer: 3
Greater the number of cutting blades on a rotatory instrument 1) Greater the cutting efficiency and smoother the surface 2) Lesser the cutting efficiency and smoother the surface 3) Greater the cutting efficiency and rougher the surface 4) Lesser the cutting efficiency and rougher the surface
Conservative DentistryAnswer: 2
Localised necrosis of the pulp from cutting burs is 1) Due to heat 2) Due to vibrations 3) Due to pressure 4) All of the above
Conservative DentistryAnswer: 1
Instruments are angled 1) To increase efficiency 2) For proper balance 3) For proper distribution of the forces 4) All of the above
Conservative DentistryAnswer: 4
The chief advantage of the composites compared to the silicates 1) Practically insoluble in oral fluids 2) Colour matching with the tooth structure is excellent 3) High modulus of resiliency 4) None of the above
Conservative DentistryAnswer: 1
The pulpal wall slants lingually (or) tooth in which the facial cusp is more likely to be involved if pulpal floor is made perpendicular to the long axis of the crown 1. Lower first premolar 2. Lower second premolar 3. Upper first premolar 4. Upper second premolar
Conservative DentistryAnswer: 1
Crazing, cracking and wear fractures of the composites is due to 1) Low modulus of resiliency 2) High modulus of elasticity 3) Low surface hardness 4) Low setting shrinkage
