Tear strength for impression material is highest for__________?
Correct answer: C. Polysulfide
- A. Condensation silicone
- B. Alginate
- C. Polysulfide
- D. Addition silicone
Explanation
Polysulfide has the greatest tear strength among the common elastomeric impression materials, making it more resistant to tearing in thin interproximal areas. Alginate is much weaker, while silicones generally have lower tear resistance.
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