Dentistry Program Quiz

What is the purpose of a coupling agent in composite resin?

• To improve the mechanical properties by transferring stresses from the resin to the filler

• To absorb electromagnetic radiation and improve color stability

• To match the tooth in color, translucency, and refractive index

• To prevent premature polymerization

Which type of composite resin contains mixtures of both fine and microfine fillers?

• Hybrid composite

• Nanofilled composite

• Fine composite

• Microfilled composite

What is the role of a coupling agent in composite resin?

• To improve the mechanical properties by transferring stresses from the resin to the filler

• To absorb electromagnetic radiation and improve color stability

• To match the tooth in color, translucency, and refractive index

• To prevent premature polymerization

Which type of composite resin has the advantage of being resistant to discoloration?

• Nanofilled composite

• Microfilled composite

• Hybrid composite

• Fine composite

What is the main advantage of light activated composite resins over chemically activated resins?

• No mixing required

• Discolored fast

• More porosity

• Short shelf life

Which type of composite resin has the highest filler content by volume?

• Nanofilled composite

• Microfilled composite

• Fine composite

• Hybrid composite

What is the function of ultraviolet stabilizers in composite resin?

• To prevent premature polymerization

• To match the tooth in color, translucency, and refractive index

• To prevent discoloration with age of composites

• To improve the mechanical properties by transferring stresses from the resin to the filler

Which type of composite resin has the advantage of being highly translucent?

• Fine composite

• Nanofilled composite

• Microfilled composite

• Hybrid composite

What is the purpose of an initiator activator system in composite resin?

• To improve the mechanical properties by transferring stresses from the resin to the filler

• To absorb electromagnetic radiation and improve color stability

• To polymerize the composite through chemical or light activation

• To prevent premature polymerization

Which type of composite resin has the advantage of having a long shelf life?

• Microfilled composite

• Nanofilled composite

• Hybrid composite

• Fine composite