The high compressive strength of high copper alloy is due to 1) Elimination of Gamma phase 2) Eutechtic in nature 3) Elimination of Gamma2 phase 4) All of the above
Conservative DentistryAnswer: 3
Automatrix is a 1) Matrix system that automatically gets attached with retainer and the tooth 2) System where a single retainer can be used for all matrix bands 3) Retainer less matrix system designed for any tooth regardless of its circumference 4) None of the above
Conservative DentistryAnswer: 3
Increasing the etching concentration 1) Increases the micropores formed 2) Increases the length of the enamel tags 3) Causes precipitation of phosphates 4) Increases the bond strength
Conservative DentistryAnswer: 3
Occlusal to gingival divergence for a cast restoration on a short crown 1) Minimum for maximum retention 2) Maximum for minimum resistance 3) Maximum for max resistance 4) Minimum for maximum resistance
Conservative DentistryAnswer: 1
The pH-time curve obtained after glucose rinse test suggests 1) High count of Streptococcus mutans 2) The procedures to reduce the caries activity 3) That the person is susceptible to caries 4) Fruit juices can cause caries
Conservative DentistryAnswer: 2
The cavosurface angle for inlay cavity preparation 1. 90 degree 2. 150 degree 3. Less than 90 degree 4. 180 degree
Conservative DentistryAnswer: 2
Marginal ridges if included in the cast gold restoration 1) Should be brought out of contact with opposing teeth 2) Should be rounded and contact with opposing cusps 3) Should be rounded and contact with opposing fossa 4) All of the above
Conservative DentistryAnswer: 2
Fracture tooth is best restored with 1) Pin retained amalgam 2) Cast gold 3) Both A & B 4) Direct gold