Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
Photobiomodul Photomed Laser Surg. 2024 Jan;42(1):90-95. doi: 10.1089/photob.2023.0118. Epub 2023 Dec 19.
This study was done to evaluate shear bond strength (SBS) and modes of failures after different surface treatment modalities on polyetheretherketone (PEEK) implant abutments. Seventy-five PEEK implant abutment specimens were randomly distributed into five groups based on surface treatment methods: Group I: No treatment, Group II: methylene blue-mediated photodynamic therapy (MB-PDT), Group III: neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, Group IV: Sulfuric acid (HSO), and Group V: Sandblasting (Sb). The measurements for SBS and failure modes for PEEK implant abutment specimens were evaluated via Universal Testing Machine and Stereomicroscope, respectively. Two-way analysis of variance and Tukey's post-hoc test ( > 0.05) were used for the statistical analysis. Moreover, the Shapiro-Wilk normality test was also performed for normality. The SBS mean values and standard deviations in megapascals (MPa) for PEEK abutment specimens with different surface pretreatment groups are shown in Table 1 and Fig. 1. The control group had the lowest SBS (9.67 ± 2.1 MPa), while the highest SBS was observed in Group II (MB-PDT; 17.21 ± 1.32 MPa). SBS values for Group IV (HSO; 15.83 ± 0.63 MPa) and Group III (Nd:YAG laser; 16.91 ± 2.10 MPa) were similar to Group II (MB-PDT; > 0.05). The SBS values for the sandblasted specimens (13.90 ± 1.87 MPa) were not significantly different from the control group ( > 0.05). The PEEK implant abutment surfaces treated with MB-PDT and Nd:YAG laser expressed significantly improved SBS.
本研究旨在评估不同表面处理方式对聚醚醚酮（PEEK）种植体基台的剪切结合强度（SBS）和失效模式。75 个 PEEK 种植体基台标本根据表面处理方法随机分为五组：I 组：无处理，II 组：亚甲蓝介导的光动力疗法（MB-PDT），III 组：掺钕钇铝石榴石（Nd:YAG）激光，IV 组：硫酸（HSO），和 V 组：喷砂（Sb）。通过万能试验机和立体显微镜分别评估 PEEK 种植体基台标本的 SBS 和失效模式。采用双向方差分析和 Tukey 事后检验（>0.05）进行统计分析。此外，还进行了 Shapiro-Wilk 正态性检验。表 1 和图 1 显示了不同表面预处理组 PEEK 基台标本的 SBS 平均值和标准差（以兆帕斯卡（MPa）为单位）。对照组的 SBS 最低（9.67±2.1 MPa），而 II 组（MB-PDT）的 SBS 最高（17.21±1.32 MPa）。IV 组（HSO）和 III 组（Nd:YAG 激光）的 SBS 值与 II 组（MB-PDT）相似（>0.05）。喷砂处理的标本（13.90±1.87 MPa）的 SBS 值与对照组无显著差异（>0.05）。MB-PDT 和 Nd:YAG 激光处理的 PEEK 种植体基台表面的 SBS 显著提高。
