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Composite Warming Effects on Mechanical Properties of Bulk Fills
[Technical Report, Research Report]
UNIFORMED SERVICES UNIV OF THE HEALTH SCIENCES
Pagination or Media Count:
New bulk-fill restorative composites have surged into the market. The purpose of this study was to assess the effect prewarming had on the mechanical properties flexural strengthmodulus, Knoop hardness KH, polymerization shrinkage, of 5 new bulk-fill composites Aura Bulk Fill, SDI, Bayswater, Victoria, AU Fill-Up, Coltene Filtek One, 3M ESPE St Paul, MN, USA SDR Flow, Dentsply Sirona, Tetric Evo Ceram Bulk Fill, Ivoclar Vivadent to an incremental nanocomposite Filtek Supreme Ultra, 3M ESPE. Flexural strengthmodulus was determined accomplished according to ISO 4049, composite specimens were created both from room temperature 22C RT and pre-warmed 52C PW composites, stored for 24hrs and tested to failure on a universal testing machine. For Knoop hardness testing, RT and PW composites were placed in cylinder molds, light cured, stored for 24 hrs, and KH performed on irradiated top and non-irradiated bottom.
[A, Approved For Public Release]