Linear contraction of elostomeric impression with passage of time is highest in______________?
Correct answer: D. Condensation silicone
- A. Addition silicone
- B. Polysulphide
- C. Polyetner
- D. Condensation silicone
Explanation
Condensation silicone shows the greatest time-related contraction because its reaction releases volatile ethyl alcohol, which evaporates. Addition silicone has minimal shrinkage, while polysulfide and polyether are generally more stable than condensation silicone.
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