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The influence of nano filling matterials on „shrinkage“ of dimethacrylate

The influence of nano filling matterials on „shrinkage“ of dimethacrylate. filling material shrinkage polydimethacrylate get hard or hardness transparent semi-solid inferior. plnící materiál smrštění polydimethakrylát tvrdit čirý polotuhý nižší (kvality). Some useful words.

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The influence of nano filling matterials on „shrinkage“ of dimethacrylate

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  1. The influence of nano filling matterials on „shrinkage“ of dimethacrylate

  2. filling material shrinkage polydimethacrylate get hard or hardness transparent semi-solid inferior plnící materiál smrštění polydimethakrylát tvrdit čirý polotuhý nižší (kvality) Some useful words

  3. Properties • high viscosity • density: 1,2g/cm3 • transparent • semi-solid

  4. How can we prepair it?

  5. Hardness with „light“ Initiator: CQ camphor quinone Inhibitor: DMAEMA 2-(N,N – dimethylamino) ethyl methacrylate Source of UV light Hardness with „heat“ Initiator: DBP dibenzoylperoxide Source of heat: drying kiln How can we prepair it?

  6. Main problem about PDMA !!!SHRINKAGE!!! Because it is mainly used as dental resin for crowns and bridges. If we are making teeth and other dental denture, we are affraid of its shrinkage. Shrinkage can destroy denture, can cause several illnesses. Making and Using

  7. Kinds of them Why filling matterials • shrinkage will be smaller • resin will keep its shape • PMMA • Silicon dioxide • Material with specific surface

  8. Volume vs. Strength • getting higher volume can lead to inferior or lower strength • As You can see on samples

  9. Thanks so much for your time and attention Good bye

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