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<p>This work aims at evaluating the influence of the reinforcement of the denture base resin PMMA using antibacterial <i>S. persica</i> micro-particles and biocompatible hydroxyapatite HA micro-particles, where different weight fractions (10% and 20%) for <i>S. persica</i> and (5% and 10%) for HA were tested. The tribological tests were conducted under both dry and wet conditions using artificial saliva. The measurement of the wear rate, dissipated energy, and specific wear energy indicates that the incorporation of <i>S. persica</i> particles generally decreases wear resistance. However, the addition of HA particles improves this property. Thus, the optimal combination that offers the best wear resistance while also exhibiting antibacterial activity was found to be 10% of each filler. In addition, SEM observations of the wear tracks revealed that adhesive and fatigue wear mechanisms were influenced by the varying filler content in the different tested materials.</p>

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Wear properties of hybrid antibacterial dental composite with micro-particles of S. persica and hydroxyapatite as fillers

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • Rihem Chaaben,
  • Ayman Ayedi,
  • Khaled Elleuch

摘要

This work aims at evaluating the influence of the reinforcement of the denture base resin PMMA using antibacterial S. persica micro-particles and biocompatible hydroxyapatite HA micro-particles, where different weight fractions (10% and 20%) for S. persica and (5% and 10%) for HA were tested. The tribological tests were conducted under both dry and wet conditions using artificial saliva. The measurement of the wear rate, dissipated energy, and specific wear energy indicates that the incorporation of S. persica particles generally decreases wear resistance. However, the addition of HA particles improves this property. Thus, the optimal combination that offers the best wear resistance while also exhibiting antibacterial activity was found to be 10% of each filler. In addition, SEM observations of the wear tracks revealed that adhesive and fatigue wear mechanisms were influenced by the varying filler content in the different tested materials.