What is the primary role of restorative dental materials?

• To enhance the color of teeth

• To replace missing teeth

• To fulfill an important role in the way dentistry is delivered

• To prevent tooth decay

Which of the following is NOT a property of dental materials?

• Thermal changes

• Mechanical properties

• Color properties

• Electrical properties

What is the measure of a metal's capacity to be stretched without fracturing?

• Solubility

• Hardness

• Ductility

• Malleability

What is the main concern with thermal changes in dental materials?

• Contraction and expansion

• Corrosion

• Electrical conductivity

• Color change

What is the term for the ability of a liquid to flow over a surface?

• Adhesion

• Viscosity

• Retention

• Wetting

Which of the following is a characteristic of high-copper alloys?

• Contain a higher percentage of copper

• High solubility

• Low strength

• Low wear resistance

What is the primary metal in dental amalgam?

• Gold

• Silver

• Copper

• Zinc

Which of the following is a contraindication for using dental amalgam?

• For stress-bearing areas

• When esthetics is important

• For small cavities

• When cost is a concern

What is the main component of the resin matrix in composite resins?

• Quartz

• Silica

• Tin

• BIS-GMA

Which type of composite contains the largest filler particles?

• Microfilled composites

• Hybrid composites

• Macrofilled composites

• Flowable composites