Department of Prosthodontics, School of Dentistry, Faculty of Health, Witten/Herdecke University.
Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University.
Dent Mater J. 2021 Mar 31;40(2):304-311. doi: 10.4012/dmj.2019-300. Epub 2020 Oct 20.
High performance polymers like PEEK (polyetheretherketone) and FRC (fiberreinforced composite) could substitute metallic alloys for removable partial dentures. However, these polymers require aesthetic veneering. This study was to determine the bond strength to direct composite. Specimens made of PEEK and FRC were produced and air-abraded (50 μm aluminum-oxide). Specimens were allocated to four experimental groups: Luxatemp Glaze & Bond, Scotchbond Universal, SR Nexco Connect and iBond Universal. Specimens were divided into three subgroups for short-term, long-term and no artificial aging and shear bond strength (SBS) was evaluated. SBS of specimens made of PEEK with no artificial aging showed values between 10.79-14.00 MPa, short-term artificial aging resulted in values between 3.78-13.85 MPa and after long-term artificial aging SBS decreased to 0-8.75 MPa. SBS measurement of FRC specimens resulted in values between 9.83-12.1 MPa without aging, after short-term artificial aging values decreased to 8.36-11.98 MPa and after long-term aging SBS showed a degradation to 4.52-7.82 MPa.
高性能聚合物如 PEEK（聚醚醚酮）和 FRC（纤维增强复合材料）可以替代金属合金用于可摘局部义齿。然而，这些聚合物需要美观的贴面。本研究旨在确定与直接复合树脂的粘结强度。制作 PEEK 和 FRC 试件并进行空气喷砂（50μm 氧化铝）。试件分为四组实验组：Luxatemp Glaze & Bond、Scotchbond Universal、SR Nexco Connect 和 iBond Universal。试件分为三组亚组，分别为短期、长期和无人工老化，评估剪切粘结强度（SBS）。未经过人工老化的 PEEK 试件的 SBS 值在 10.79-14.00 MPa 之间，短期人工老化后的 SBS 值在 3.78-13.85 MPa 之间，长期人工老化后 SBS 值降至 0-8.75 MPa。FRC 试件的 SBS 值在无老化时为 9.83-12.1 MPa，短期人工老化后降至 8.36-11.98 MPa，长期老化后 SBS 降至 4.52-7.82 MPa。
