Department of Restorative Dentistry, Faculty of Dentistry, Kahramanmaras Sutcu Imam University, Onikisubat, Kahramanmaras, Turkey.
Department of Restorative Dentistry, Faculty of Dentistry, Gaziantep University, University Boulevard, Sehitkamil, Gaziantep, 27310, Turkey.
Lasers Med Sci. 2023 Sep 29;38(1):224. doi: 10.1007/s10103-023-03878-z.
This study aimed to assess the efficacy of phototherapy with an Er, Cr:YSGG laser on the bond strength of dentin using two different adhesive systems after chlorhexidine (CHX) application. Twenty-four non-carious human molar teeth were separated into three main groups: negative control Group A (Group A), CHX and phototherapy with an Er, Cr:YSGG laser (Group PC), and CHX with conventional diamond bur (no phototherapy) (Group C). These groups were divided into two subgroups based on adhesives: Clearfil Universal Quick Bond and Clearfil SE Bond. To evaluate the microtensile bond strength, the occlusal enamel surfaces of the teeth were removed with a low-speed, water-cooled diamond bur to expose hard dentin tissue. The teeth within Group PC were treated with Er, Cr:YSGG phototherapy. The surfaces were then disinfected with 0.2% chlorhexidine gluconate. Subgroups were applied according to the manufacturer's instructions using the adhesive systems mentioned above. Following adhesive application, the teeth were restored with composite resin. A microtensile bond strength test was performed on the test sticks obtained from the teeth using a universal test device. Data were analyzed using variance analysis (ANOVA) at a significance level of p < 0.05. Among all groups, the highest bond strength was achieved with Clearfil SE Bond with CHX + phototherapy (45.6 ± 4.2), while the lowest was achieved with Clearfil Universal Quick Bond without phototherapy (control group) (27.0 ± 6.7) (p < 0.05). Phototherapy with Er, Cr: YSGG following chlorhexidine application enhanced the bond strength of both the bond systems (p < 0.05).
本研究旨在评估 Er,Cr:YSGG 激光光疗对两种不同粘接系统处理后牙本质粘接强度的影响。将 24 颗无龋人磨牙分为三组：阴性对照组 A 组（A 组）、应用 Er,Cr:YSGG 激光光疗的氯己定（CHX）组（PC 组）和应用常规金刚石车针（无激光光疗）的 CHX 组（C 组）。根据粘接剂将这些组分为两组：Clearfil Universal Quick Bond 和 Clearfil SE Bond。为了评估微拉伸粘接强度，用低速水冷金刚石车针去除牙齿的咬合面釉质，暴露硬质牙本质组织。PC 组的牙齿用 Er,Cr:YSGG 激光光疗处理。然后用 0.2%葡萄糖酸氯己定对表面进行消毒。根据制造商的说明，使用上述粘接系统对亚组进行处理。在粘接剂应用后，用复合树脂修复牙齿。用万能测试设备从牙齿上获得的测试棒上进行微拉伸粘接强度测试。使用方差分析（ANOVA）在显著性水平 p<0.05 下对数据进行分析。在所有组中，含 CHX+光疗的 Clearfil SE Bond 具有最高的粘接强度（45.6±4.2），而不含光疗的 Clearfil Universal Quick Bond（对照组）的粘接强度最低（27.0±6.7）（p<0.05）。CHX 处理后应用 Er,Cr:YSGG 激光光疗增强了两种粘接系统的粘接强度（p<0.05）。
