In vitro wear resistance of conventional and milled denture teeth

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  • Kim, Susun Theresa
    • Adams School of Dentistry, Department of Prosthodontics
Abstract
  • The study compared the wear resistance of conventional and milled double-cross-linked (DCL) polymethyl methacrylate resin (PMMA) and nano-composite infused resin denture teeth (NC). DCL PMMA and NC conventional denture teeth, and teeth milled from a DCL PMMA resin disc (DCL-CAM) and from a nano-composite and nano-ceramic infused resin disc (NC-CAM) underwent chewing simulation. The vertical changes after each 50,000 cycles up to 250,000 cycles and volumetric changes after 250,000 cycles were quantified using the Geomagic software. The wear of the conventional and milled denture teeth approximated a linear progression between 50,000 to 250,000 cycles. The conventional NC teeth wore the most by 3.4 times vertically and 12.3 times volumetrically than the milled NC-CAM, which wore the least. The wear resistance between the conventional and milled DCL PMMA teeth was not statistically different. Regarding wear resistance, the milled denture teeth (DCL-CAM and NC-CAM) are acceptable alternatives to the conventional denture teeth.
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Advisor
  • Cook, Donald R
  • Sulaiman, Taiseer
  • Albouy, Jean-Pierre
  • De Kok, Ingeborg
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2020
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