As age advances the microleakage of an amalgam restoration 1) Decreases 2) Increases 3) Constant 4) Variable
Conservative DentistryAnswer: 1
The term stepping is associated with 1. Root canal preparation 2. Direct gold condensation 3. Silver amalgam condensation 4. Fracture mandible
Conservative DentistryAnswer: 2
For maximum strength, amalgam should have 1) Maximum of matrix phase and minimum of gamma phase 2) Maximum of gamma phase and maximum of gamma II phase 3) Maximum of gamma phase and minimum of matrix phase 4) Maximum of gamma II phase and minimum of gamma phase
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
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
Which of the following principles of the cavity preparation is not considered much in modern methods of restorative dentistry? 1) Extension for prevention 2) Convenient form 3) Removal of the undermined enamel 4) Removal of the carious dentin
Conservative DentistryAnswer: 1
The order of placement of materials in deep caries from pulpal side 1) Cavity varnish, calcium hydroxide and zinc phosphate base 2) Calcium hydroxide, varnish and zinc phosphate base 3) Zinc phosphate, varnish and calcium hydroxide 4) There is no definite order
Conservative DentistryAnswer: 2
When preparing adjacent class III cavities recommended procedures 1) Prepare large first but fill last 2) Prepare small first but fill last 3) Prepare and fill the small first 4) Prepare and fill the large first
