Question 274 (part 2) · LDEK · Impressions and impression materials
Polyether impression materials used in impressions for fixed restorations, include in their base:
- A. polyether copolymer, silicate filler, plasticizer, triglycerides.
- B. sulphonic acid esther.
- C. tin caprylate, sulphonic acid esther.
- D. tin caprylate.
- E. polyether copolymer, sulphonic acid esther, triglycerides.
Hint
Separate the base and catalyst pastes: which components form the base, and which ester initiates the polymerisation?
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