A. Amalgam alloy
B. Unfilled resin
C. Composite resin
D. Direct filling gold
A. 1925
B. 1937
C. 1951
D. 1956
Acrylic resins were first introduced as a denture base material in______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Increased thermal conductivity
B. Decreased wear resistance
C. Decreased thermal conductivity
D. None of the above
What is the disadvantage of using composites as restorative material ? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. 3% to 5%
B. 8% to 10%
C. 0.2% to 0.5%
D. 0.6% to 0.8%
The % of free monomer in a heat – cured acrylic resin is_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Increases vertical dimension
B. Causes teeth to be shrunken in investment
C. Causes poor quality of colour
D. Causes fracture of denture
Inadequate pressure application during flasking_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Increasing the mechanical strength
B. Decreasing the coefficient of thermal expansion
C. Reducing the polymerization shrinkage
D. All of the above
Inorganic phase of the composites aid in_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
B. Polymerization shrinkage is high if within the enamel margins
C. Acid etching and priming will decrease polymerization shrinkage
D. Microleakage can occur because of polymerization shrinkage
About polymerization shrinkage of composite all are true, except______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. It can be finished smoothly
B. It has a low degree of flow
C. It’s non-irritation to pulp
D. It’s wear resistant is high
The advantage of unfilled methyl methacrylate is that______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Only Hydrophobic component
B. Only Hydrophilic component
C. Hydrophobic and hydrophilic component
D. Lyophillic and lyophobic component
Dentin bonding agents usually contain_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. TEGDMA
B. BIS-GMA
C. Ti02
D. None of the above
Which of the following provide opacity to composite ? Read More »
Dental Materials, Medical Mcqs, Restorative Resins