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.Management Sciences
Category: Physical Properties
Brinnel hardness number of a dental gold alloy is directly proportional to its______________?
0
A. Tensile strength
B. Elongation
C. Modulus of elasticity
D. Modulus of resilience
The strain that occurs when a material is stressed to its proportional limit is______________?
A. Resilience
B. Maximum flexibility
C. Toughness
D. Elastic limit
Coefficienty of thermal expansion of tooth enamel is closest to_______________?
A. Slicate cement
B. Composite
C. GIC
D. Polycarboxylate
The ability of the base to resist occlusal forces and to support the restoration is affected by_______________?
A. Compressive strength
B. Tensile strength
C. Young’s modulus
D. Modulus of elasticity
A crystal in metal substructure is_______________?
A. Grain
B. Nucleus
C. Stroma
D. None of the above
The stiffness of a dental gold alloy is determined by its________________?
A. Proportional limit
B. Modulus of elasticity
C. Ultimate tensile strength
D. Flow
Which of the following properties of dental materials is time dependent_______________?
A. Creep
B. Resillience
C. Elastic limit
D. Ultimate strength
Materials which has high compressive strength and low tensile strength is classified with property of________________?
A. Ductility
B. Brittleness
C. Malleability
D. Resilient
Stress in defined as_______________?
A. An applied load or force
B. A deformation resulting from an applied load
C. An external force opposing an applied load
D. An internal force opposing an applied load
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