Pourkhalili Hossein, Asli Hamid Neshandar, Toreihi Newsha, Falahchai Mehran
Department of Prosthodontics, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
Dent Res J (Isfahan). 2022 Jun 1;19:45. eCollection 2022.
Polyether ether ketone (PEEK) was recently introduced to dentistry. However, difficulty in provision of a strong durable bond is its main drawback. Thus, precise surface treatment and use of a suitable luting agent are imperative for bonding of PEEK restorations. This study aimed to assess the effect of type of luting agent on shear bond strength (SBS) of PEEK.
In this study, 60 square-shaped PEEK samples were fabricated and sandblasted with 110 μm AlO particles. The samples were then divided into four groups based on the type of cement used ( = 15): zinc phosphate cement, Panavia F2, Panavia V5, and resin-modified glass-ionomer (RMGI) cement. After bonding, the samples were thermocycled for 5000 cycles. The SBS was measured by a universal testing machine. The surface of samples was inspected under a video measuring machine to determine the mode of failure. Data were analyzed using the Kruskal-Wallis test via SPSS version 24 (α = 0.05).
In this study, 60 square-shaped PEEK samples were fabricated and sandblasted with 110 μm AlO particles. The samples were then divided into four groups based on the type of cement used ( = 15): zinc phosphate cement, Panavia F2, Panavia V5, and resin-modified glass-ionomer (RMGI) cement. After bonding, the samples were thermocycled for 5000 cycles. The SBS was measured by a universal testing machine. The surface of samples was inspected under a video measuring machine to determine the mode of failure. Data were analyzed using the Kruskal-Wallis test via SPSS version 24 (α = 0.05).
RMGI did not bond to PEEK. The SBS values were 4.02 ± 2.87 megapascals (MPa) for Panavia V5, 10.84 ± 6.05 MPa for Panavia F2, and 10.50 ± 2.88 MPa for zinc phosphate. The SBS in the Panavia V5 group was significantly lower than that in the Panavia F2 ( = 0.001) and zinc phosphate ( < 0.001) groups. No significant difference existed between the Panavia F2 and zinc phosphate groups in this respect ( > 0.05).
Panavia F2 resin cement and zinc phosphate conventional cement provided the highest bond strength to PEEK, while RMGI did not bond to PEEK.
聚醚醚酮（PEEK）最近被引入牙科领域。然而，难以提供牢固持久的粘结是其主要缺点。因此，精确的表面处理和使用合适的粘结剂对于PEEK修复体的粘结至关重要。本研究旨在评估粘结剂类型对PEEK剪切粘结强度（SBS）的影响。
在本研究中，制作了60个方形PEEK样本，并用110μm的AlO颗粒进行喷砂处理。然后根据所用粘结剂的类型将样本分为四组（每组n = 15）：磷酸锌粘结剂、Panavia F2、Panavia V5和树脂改性玻璃离子（RMGI）粘结剂。粘结后，样本进行5000次热循环。通过万能试验机测量SBS。在视频测量仪下检查样本表面以确定失效模式。使用SPSS 24版的Kruskal-Wallis检验分析数据（α = 0.05）。
RMGI不能与PEEK粘结。Panavia V5组的SBS值为4.02±2.87兆帕（MPa），Panavia F2组为10.84±6.05 MPa，磷酸锌组为10.50±2.88 MPa。Panavia V5组的SBS显著低于Panavia F2组（P = 0.001）和磷酸锌组（P < 0.001）。在这方面，Panavia F2组和磷酸锌组之间没有显著差异（P > 0.05）。
Panavia F2树脂粘结剂和磷酸锌传统粘结剂对PEEK提供了最高的粘结强度，而RMGI不能与PEEK粘结。
