paolacarrionz1 paolacarrionz1
  • 02-06-2016
  • Health
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what's the difference between preliminary impressions and final impressions.

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renamoonlit
renamoonlit renamoonlit
  • 02-06-2016
Final impressions are made with either a polyvinyl siloxane or a polysulfide siloxine . They give more accurate impressions and are stable long after they set. You can pour them days later :) Hope this helped at least a little bit, and good luck
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