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3-Body Wear Resistance of Different Composite Cements

Objectives: The aim of this study was to evaluate the three-body wear resistance of six different commercially available composite cements.
Methods: Specimens were prepared from the following materials: G-CEM Veneer (GC), Variolink Esthetic LC (Ivoclar Vivadent), NX3 Nexus (Kerr Dental), RelyX Veneer (3M), Calibra Veneer (Dentsply Sirona), PanaviaV5 (Kuraray Noritake).
After polishing with 1000-grid SiC paper, specimens were stored in water at 370 C for 24h. The three-body wear test was performed in a wear testing machine for 100,000 cycles (n=4, test load 0.84 MPa). Wear was determined from a difference in height of specimen before and after the test with the aid of a micrometer. Data were statically analyzed by one-way ANOVA (p=0.05).
Results: After 3-body wear simulation, G-CEM Veneer presented a significantly lower volume loss than the other groups (3.1µm, SD±2.2). Specimens from Calibra Veneer group had the higher volume loss (223.4µm, SD±47.8).
Conclusions: The volume loss was significantly different for all the composite cements tested. G-CEM Veneer presented the best wear resistance.
Division: IADR/AADR/CADR General Session
Meeting: 2020 IADR/AADR/CADR General Session (Washington, D.C., USA)
Location: Washington, D.C., USA
Year: 2020
Final Presentation ID: 1831
Abstract Category|Abstract Category(s): Dental Materials 2:Polymer-based Materials
Authors
  • Parise Gré, Cristina  ( GC Europe N.V. , Leuven , Belgium )
  • Miyagawa, Azusa  ( GC Corporation , Tokyo , Japan )
  • Hirano, Kyosuke  ( GC Corporation , Tokyo , Japan )
  • Usuki, Daisuke  ( GC Corporation , Tokyo , Japan )
  • Dopheide, Bart  ( GC Europe N.V. , Leuven , Belgium )
    • Financial Interest Disclosure: I work for GCE.
    SESSION INFORMATION
    Poster Session
    Polymer-based Materials: General Mechanical Properties
    TABLES
    Table1: One-way ANOVA.
    MaterialMean values (±SD)
    G-CEM Veneer3.1µm (±2.2)a
    RelyX Veneer13.7µm (±0.7)b
    NX3 Nexus40.8µm (±7.9)c
    Variolink Esthetics LC142.8µm (±2.6)e
    Panavia V5113.5µm (±4.7)d
    Calibra Veneer223.4µm (±47.8)f
    Different superscript letter above the values indicates groups that were statistically different (p<0.05).
    IMAGES

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