Question 155 · LDEK · Impressions and impression materials
Put the impression materials in order (taking into consideration deformation, distortion at pressure and dimensional changes) starting with the most accurate and finishing with the least accurate:
- A. silicone C - silicone A - alginate.
- B. alginate - silicone C - silicone A.
- C. silicone A - silicone C - alginate.
- D. polyether - alginate - silicone C.
- E. silicone C - silicone A - polysulfide.
Hint
Compare setting by-products: an addition reaction releases none, a condensation reaction releases alcohol, and hydrocolloids gain or lose water.
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