Aljamhan Abdullah, Alkhudhairy Fahad
Abdullah Aljamhan Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Fahad Alkhudhairy Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Pak J Med Sci. 2025 Jul;41(7):1980-1985. doi: 10.12669/pjms.41.7.12185.
To find out influence of advanced surface modification techniques (argon (Ar) Plasma, Femtosecond (FS) laser, and nano-hydroxyapatite (HA) coating) on the surface roughness (Ra) and shear bond strength (SBS) of resin luting cement to polyetheretherketone (PEEK).
The lab-based comparative study followed a checklist for reporting in vitro study (CRIS) guidelines. The study was completed in two months (January 10, 2025, to March 10, 2025) at King Saud University. The study was conducted on sixty-four CAD CAM Vestakeep PEEK tooth-colored discs, divided into four groups (n=16) based on different conditioning methods SA (Group-1), Ar Plasma (Group-2), FS laser (Group-3), and nano-HA coating (Group-4). The Ra was evaluated using a profilometer, while topographical assessments were performed using scanning electron microscopy. Forty samples were subjected to resin cement luting, followed by artificial aging. A universal testing machine was utilized for SBS testing, and failure mode determination was performed using a stereomicroscope. Statistical analysis involved a one-way analysis of variance and Tukey's Post Hoc test, with significance set at p=0.05.
The highest Ra (1299.53 ± 0.015) and SBS (15.13 ± 0.11 MPa) values were observed in Group-3 (FS laser). Conversely, the lowest Ra (888.58±0.011) and bond strength (13.43±0.09 MPa) values were exhibited by Group-4 (Nano-HA coatings) specimens.
The application of Argon Plasma and Femtosecond laser techniques has shown promise as viable alternatives for PEEK surface conditioning.
探究先进的表面改性技术（氩（Ar）等离子体、飞秒（FS）激光和纳米羟基磷灰石（HA）涂层）对树脂粘结水门汀与聚醚醚酮（PEEK）表面粗糙度（Ra）和剪切粘结强度（SBS）的影响。
这项基于实验室的对比研究遵循体外研究报告清单（CRIS）指南。该研究于两个月内（2025年1月10日至2025年3月10日）在沙特国王大学完成。研究对象为64个计算机辅助设计/计算机辅助制造（CAD CAM）的Vestakeep PEEK牙色圆盘，根据不同的处理方法分为四组（每组n = 16）：SA（第1组）、Ar等离子体（第2组）、FS激光（第3组）和纳米HA涂层（第4组）。使用轮廓仪评估Ra，同时使用扫描电子显微镜进行形貌评估。40个样本进行树脂水门汀粘结，随后进行人工老化。使用万能试验机进行SBS测试，并使用体视显微镜确定失效模式。统计分析采用单因素方差分析和Tukey事后检验，显著性水平设定为p = 0.05。
第3组（FS激光）观察到最高的Ra（1299.53 ± 0.015）和SBS（15.13 ± 0.11 MPa）值。相反，第4组（纳米HA涂层）样本的Ra（888.58±0.011）和粘结强度（13.43±0.09 MPa）值最低。
氩等离子体和飞秒激光技术的应用已显示出作为PEEK表面处理可行替代方法的前景。
