Objectives The aim of this study is to investigate the shear bond strength of an acrylic resin to titanium after different surface treatment methods. Material and Methods A total of seventy-two disc-shaped specimens (10 mm × 10 mm × 2 mm) were prepared from titanium alloy. The specimens were randomly allocated to six equal groups: Group S (sandblasting), Group MP (metal primer), Group 10W (fiber laser 10 W), Group 20W (fiber laser 20 W), Group 10WMP (fiber laser 10 W+metal primer), and Group 20WMP (fiber laser 20 W+metal primer). All of the specimens were thermocycled up to 5000 cycles. After thermal cycling, a shear bond strength test was conducted. The shear bond strength data were analyzed with one-way ANOVA and Tukey's post hoc pairwise comparisons (p < 0.05). Results While the highest values were determined in Group MP, the lowest values were observed in Group S. Additionally, Group MP exhibited significantly higher shear bond strength values than any of the other groups (p < 0.05) except Group 10WMP. Similar results were observed between Group MP and Group 10WMP (p > 0.05). The groups in which a metal primer was applied (Group MP, 10WMP, and 20WMP) showed significantly higher values than Group S. The shear bond strength values of Group 10W and Group 20W were similar. Conclusions The application of a metal primer significantly improved the bond strength of acrylic resin to titanium. Fiber laser application may be an alternative method to sandblasting for improving the bond strength of acrylic resin to titanium.

中文翻译：

---

光纤激光辐照对丙烯酸树脂与钛之间剪切结合强度的影响

目的 本研究的目的是研究不同表面处理方法后丙烯酸树脂与钛的剪切粘合强度。材料与方法 共制备了 72 个圆盘状试样（10 mm × 10 mm × 2 mm），由钛合金制成。样本被随机分配到六个相等的组：S组（喷砂）、MP组（金属底漆）、10W组（光纤激光10W）、20W组（光纤激光20W）、10WMP组（光纤激光10W+金属）底漆）和 Group 20WMP（光纤激光 20 W+金属底漆）。所有样品都进行了高达 5000 次循环的热循环。在热循环之后，进行剪切粘合强度测试。使用单向方差分析和 Tukey 的事后成对比较分析剪切粘合强度数据 (p < 0.05)。结果 虽然在 MP 组中确定了最高值，但 在 S 组中观察到最低值。此外，除 10WMP 组外，MP 组的剪切粘合强度值显着高于任何其他组 (p < 0.05)。在组 MP 和组 10WMP 之间观察到类似的结果（p > 0.05）。应用金属底漆的组（MP 组、10WMP 和 20WMP 组）显示出明显高于 S 组的值。10W 组和 20W 组的剪切粘合强度值相似。结论 金属底漆的应用显着提高了丙烯酸树脂与钛的结合强度。光纤激光应用可能是喷砂的替代方法，用于提高丙烯酸树脂与钛的结合强度。05) 组 10WMP 除外。在组 MP 和组 10WMP 之间观察到类似的结果（p > 0.05）。应用金属底漆的组（MP 组、10WMP 和 20WMP 组）显示出明显高于 S 组的值。10W 组和 20W 组的剪切粘合强度值相似。结论 金属底漆的应用显着提高了丙烯酸树脂与钛的结合强度。光纤激光应用可能是喷砂的替代方法，用于提高丙烯酸树脂与钛的结合强度。05) 组 10WMP 除外。在组 MP 和组 10WMP 之间观察到类似的结果（p > 0.05）。应用金属底漆的组（MP 组、10WMP 和 20WMP 组）显示出明显高于 S 组的值。10W 组和 20W 组的剪切粘合强度值相似。结论 金属底漆的应用显着提高了丙烯酸树脂与钛的结合强度。光纤激光应用可能是喷砂的替代方法，用于提高丙烯酸树脂与钛的结合强度。结论 金属底漆的应用显着提高了丙烯酸树脂与钛的结合强度。光纤激光应用可能是喷砂的替代方法，用于提高丙烯酸树脂与钛的结合强度。结论 金属底漆的应用显着提高了丙烯酸树脂与钛的结合强度。光纤激光应用可能是喷砂的替代方法，用于提高丙烯酸树脂与钛的结合强度。