Elawadly Tarek, Radi Iman A W, El Khadem Amr, Osman Reham B
1 Prosthodontics Department, Faculty of Dentistry, Russian University, Cairo, Egypt.
2 Faculty of Dentistry, Cairo University, Egypt.
J Oral Implantol. 2017 Dec;43(6):456-461. doi: 10.1563/aaid-joi-D-17-00144. Epub 2017 Oct 24.
Polyetheretherketone (PEEK) composites are biocompatible materials that may overcome the esthetic and allergic problems of titanium dental implants. However, their potential for osseointegration with a subsequent survival rate is still questionable. The aim of this study was to evaluate the surface roughness and wettability of different surface-treated filled and unfilled PEEK specimens, which may be indicative of the osseointegration behavior and potential use of PEEK as an implant material. Unfilled, ceramic-filled (CFP) and carbon fiber-reinforced (CFRP) PEEK discs were prepared and left untreated or were surface treated with 50 μ, 110 μ, or 250 μ aluminum oxide particles. The roughness average (Ra) value of each disc was evaluated using a contact stylus profilometer. Their contact angles were measured to evaluate their wettability, which was compared among PEEK discs using ANOVA, followed by Bonferroni test for pairwise comparisons ( P ≤ .05). Regarding the surface roughness, a significant difference was found between unfilled and filled PEEK when untreated and bombarded with 50 or 110 microns of aluminum oxide particles. For the contact angle, a significant difference was found only among the untreated PEEK materials. Among the evaluated PEEK materials, CFRP50, CFRP110 and CFP110 showed the most favorable Ra values with good wettability properties, thus being potential substrates for dental implants.
聚醚醚酮（PEEK）复合材料是具有生物相容性的材料，可能会克服钛牙种植体的美观和过敏问题。然而，它们与骨结合的潜力以及随后的存活率仍存在疑问。本研究的目的是评估不同表面处理的填充和未填充PEEK标本的表面粗糙度和润湿性，这可能表明PEEK作为植入材料的骨结合行为和潜在用途。制备了未填充、陶瓷填充（CFP）和碳纤维增强（CFRP）的PEEK圆盘，使其未经处理或用50μm、110μm或250μm的氧化铝颗粒进行表面处理。使用接触式触针轮廓仪评估每个圆盘的平均粗糙度（Ra）值。测量它们的接触角以评估其润湿性，并使用方差分析（ANOVA）在PEEK圆盘之间进行比较，随后进行Bonferroni检验以进行成对比较（P≤0.05）。关于表面粗糙度，当未处理以及用50或110微米的氧化铝颗粒轰击时，未填充和填充的PEEK之间存在显著差异。对于接触角，仅在未处理的PEEK材料之间发现显著差异。在所评估的PEEK材料中，CFRP50、CFRP110和CFP110表现出最有利的Ra值和良好的润湿性，因此是牙种植体的潜在基材。
