Quiz on Properties of Dental Materials

What is a characteristic of the oral environment that affects dental materials?

• Low grinding forces

• Stable temperature

• Presence of acids

• Dryness

Which of the following is a desirable property of dental materials?

• High solubility

• Easily breakable

• Low durability

• Biocompatible

What does the term 'shelf life' refer to in dental materials?

• Time a material can be stored without deterioration

• Time for mixing

• Time for setting

• Time for working

Which organization is considered a major reference for dental material acceptance?

• American Medical Association

• International Dental Federation

• American Dental Association

• World Health Organization

What is the recommended time for mixing a dental material until a homogenous mixture is achieved called?

• Working time

• Setting time

• Shelf life

• Mixing time

What is the time available for manipulating a dental material before it sets?

• Setting time

• Shelf life

• Working time

• Mixing time

Which property describes the ability of a material to elicit an appropriate biological response?

• Chemical stability

• Mechanical strength

• Electrical conductivity

• Biocompatibility

What is the term for the force of attraction between molecules of different substances?

• Strain

• Cohesion

• Adhesion

• Stress

What does 'ultimate strength' refer to in mechanical properties?

• Stress at yield strength

• Stress at proportional limit

• Stress at which material is elastic

• Stress at which fracture occurs

Which property measures the resistance of a material to indentation?

• Malleability

• Toughness

• Hardness

• Ductility