A. 6%
B. 8%
C. 10%
D. 21%
What is the polymerization shrinkage if 3:1 powder: liquid ratio is used____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Covalent bonds
B. sonic bonds
C. Vander Wall’s Forces
D. Hydrogen Bonds
Macromolecules in Dental Resin is attached by______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Biological properties
B. Thermal properties
C. Mechanical properties
D. Esthetic properties
A. Parabane
B. Ligane
C. Silane
D. Chelane
The most common coupling agents are organic silicon compound called_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. 4th generation bonding agents
B. Separate etching step not required
C. Separate etching step is still required
D. Contains only primer
One bottle system of adhesive resins_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Decrease micro leakage
B. Decrease polymerization shrinkage
C. Decrease coefficient of thermal expansion
D. Decrease porosity in restorative material
Most advantageous indication of acid etching is______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Microwave-activated resins
B. Tertiary amine-activated resins
C. Light activated resins
D. Heat activated resins
VLC resins are also called as______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. 1% by volume 0.23% by weight
B. 10% by volume 0.23% by weight
C. 0.1% by volume 0.23% by weight
D. None of the above
Cold cure acrylic expand in water by___________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Knoop hardness number 18 to 20
B. Tensile strength of 60 MPa
C. Density of 1.13 g/cm3
D. Modulus of elasticity of 3.4 GPa
Which of the following is NOT true of polymethyl methacrylate ? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Better control over placement
B. Enhance and concentrate the action of acid
C. Helps in visualization while placement
D. None of the above
Etchant preferred in gel from than in liquid form________________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins