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Impression Compound in Dentistry

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Questions and Answers

What is the thermoplastic behavior of dental impression compound?

Softens by cooling and hardens by heating

Softens and hardens at room temperature

Undergoes no change in temperature

Softens by heating and hardens by cooling (correct)

What is the primary use of Type I impression compound?

Modeling acrylic special tray

Recording primary impressions (correct)

Tracing of green compound

Supporting other impression material

What is the characteristic of Type II impression compound?

Used for modeling acrylic trays

Low fusing, softens at 45-55o C

High fusing, softens at 70o C (correct)

Non-thermoplastic

In what form can dental impression compound be presented?

Sticks, cakes, and cones (D) Signup and view all the answers

Which impression material is suitable for recording primary impressions for edentulous patients?

Type I impression compound (A) Signup and view all the answers

What is a disadvantage of using Type II impression compound?

Limited rigidity (C) Signup and view all the answers

Which type of impression compound is used as tray material to carry other impression materials?

Type II (A) Signup and view all the answers

What makes dental impression compound a thermoplastic material?

It can be repeatedly softened and hardened with temperature changes. (A) Signup and view all the answers