Restorative & Materials · single question

To DECREASE the working/setting time of alginate impression material, you should:

  1. Use colder water
  2. Use warmer (hot) water
  3. Add more water to the mix
  4. Use less powder
Show answer and explanation

Correct answer: B. Use warmer (hot) water

  • A. Colder water LENGTHENS the setting time.
  • B. Correct. Warmer water speeds the chemical reaction, shortening working/setting time.
  • C. Altering the water:powder ratio changes consistency/strength, not the recommended way to control set.
  • D. Reducing powder weakens the mix and is not the method used to control set time.

Practice Restorative & Materials questions Restorative & Materials study notes

More Restorative & Materials practice questions