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Questions and Answers
What is the ideal temperature for manipulating sheet or cake form impression compound?
What is the ideal temperature for manipulating sheet or cake form impression compound?
- 40-45°C
- 80-85°C
- 70-75°C
- 55-60°C (correct)
What is the difference between Type I and Type II impression compounds?
What is the difference between Type I and Type II impression compounds?
- Type I is lower fusing and supplied in the shape of tray, while Type II is higher fusing and supplied in sheets or sticks form. (correct)
- Type I is stiffer and has less flow than regular impression compound, while Type II is softer and has more flow.
- Type I has more thermoplastic compounds than Type II.
- Type I is used for border molding of an acrylic special tray, while Type II is used for primary impression for edentulous ridges.
What is the consequence of over-heating Type I stick form impression compound?
What is the consequence of over-heating Type I stick form impression compound?
- It becomes too soft and difficult to handle
- It becomes brittle and cracks easily
- It becomes too hard to manipulate
- It becomes sticky and difficult to handle (correct)
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