Material physical properties part 2

Chroma is

• Degree of lightness or darkness of color
• Color intensity
• Dominant wave length- Primary colors only
• none of the above

The change of color of two objects under different light sources is called

• polymorphism
• isomerism
• metamerism
• isomorphism

Constant stimulus by one color decreased the response to that color this is called:

give reason, value is the most important diameter in dentistry

give reason, Aesthetic dental restorations should have smooth surface

give reason, Inadequate polishing of an aesthetic material yields a dull restoration

give reason, An endodontically treated tooth appears grey when compared to a sound one

give reason, shade selection should not continue more than 5 seconds without resting the eyes

What is the importance of adding fluorescent agents to the dental aesthetic restorative materials

give reason, close matching in the refractive index between the tooth and the restorative material is required