Composite Warming Effects on Mechanical Properties of Bulk Fills

Abstract

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 strength/modulus, 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 strength/modulus 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.

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Document Details

Document Type
Technical Report
Publication Date
Mar 18, 2020
Accession Number
AD1182668

Entities

People

  • Alisha C. Brown
  • John A. Brewster
  • Sara A. Dixon

Organizations

  • Uniformed Services University of the Health Sciences

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Conversion
  • Dental Materials
  • Dentistry
  • Elastic Properties
  • Flexural Properties
  • Flexural Strength
  • Hardness
  • International Organizations
  • Light Transmission
  • Materials
  • Mechanical Properties
  • Modulus Of Elasticity
  • Nanocomposites
  • Physical Properties
  • Time Intervals

Fields of Study

  • Materials science

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