Question 260 · LDEK · Root canal obturation

What is the temperature above which guttapercha becomes liquid?

  1. A. 42 ºC.
  2. B. 65 ºC.
  3. C. 115 ºC.
  4. D. 200 ºC.
  5. E. 300 ºC.
Hint

Gutta-percha passes through beta, alpha and amorphous phases as it heats; choose the value just above the amorphous transition.

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