Specific kinetics of polymerization in TPO-based BisGMA, UDMA or BisEMA resins

Randolph, Luc;Leloup, Gaëtane;Palin, William;Leprince, Julian
(2015) International Association for Dental Research — Location: Boston (11.March.2015)

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Authors
  • Randolph, LucUCLouvain
    Author
  • Leloup, GaëtaneUCLouvain
    Author
  • Palin, WilliamUniversity of Birmingham
    Author
  • Leprince, JulianUCLouvain
    Author
Abstract
It has been shown that the use of a phosphine oxide (Lucirin-TPO, MAPO) as a replacement of the conventional Camphorquinone/Amines (CQ) system in a model BisGMA/TegDMA resin and resin composite allows for faster kinetics and increased conversion with reduced irradiation time (1 to 3 seconds). These results however must be reproduced with a wide range of resin formulations. The present work investigated the polymerization kinetics of MAPO-based resins using BisGMA, UDMA or BisEMA as a base monomer, diluted with TegDMA in various proportions. The use of 1 s irradiation time was associated with high conversions (76.5 %) and high rates (0.79 s-1). UDMA may advantageously substitute BisGMA and the slow kinetics of BisEMA may be used as an agent to fine tune properties in ternary mixtures.
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Randolph, L., Leloup, G., Palin, W., & Leprince, J. (2015). Specific kinetics of polymerization in TPO-based BisGMA, UDMA or BisEMA resins. International Association for Dental Research, Boston.