Alginate impression material is similar to Agar-agar impression material in the following respect________________?
Correct answer: C. Deformation during removal of impression occurs due to distortion of gel fibers
- A. Gelation increase in both on increase in temperature
- B. Mixing time is increased to reduce the setting time
- C. Deformation during removal of impression occurs due to distortion of gel fibers
- D. Both can be re-used for fresh impressions
Explanation
Both alginate and agar are hydrocolloids, so removal can distort their gel network or fibers when the impression is stretched. Neither material can normally be reused for a fresh impression, which rules out option d.
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