Question 70 · LDEK · Prosthodontic materials
Which ingredient is not a component of the powder of poly (methyl metacrylate) (PMMA)?
- A. poly (methyl metacrylate) (PMMA) of granulation size 0.005-0.04 mm.
- B. copolymer.
- C. inhibitor.
- D. catalyst.
- E. filler.
Hint
Which additive prevents spontaneous polymerisation during storage, and which part of the kit needs that protection?
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