Nakhaei Mohammadreza, Taghvaei Fatemeh, Mohammadipour Hamideh Sadat
Int J Prosthodont. 2022 March/April;35(2):186–193. doi: 10.11607/ijp.6949. Epub 2021 Feb 26.
To evaluate the micro-shear bond strength (μSBS) of different bonding protocols to commercially pure titanium (CP Ti) using two universal adhesives and Alloy Primer.
A total of 120 cubes of CP Ti were airborne-particle abraded and then divided into 6 groups (n = 20 each) according to bonding protocol: (1) Scotchbond Universal (SU; 3M ESPE), (2) Alloy Primer (AP; Kuraray) + SU; (3) G-Premio Bond (GP; GC); or (4) AP + GP. The specimens from groups 1 to 4 were cemented with RelyX Unicem (3M ESPE), while those from groups 5 and 6 were cemented using Panavia F2.0 cement (PAN; Kuraray) without and with prior AP application, respectively. After 24 hours, half the specimens were subjected to μSBS measurement and the other half to thermocycling (5,000 cycles) before testing. Data were analyzed using Shapiro-Wilk, two-way analysis of variance, Games-Howell, and independent sample t test (α = .05).
The μSBS values obtained from the AP + SU group were significantly higher than from the GP (P = .003) and the AP + GP (P = .022) groups. After thermocycling, the μSBS of both groups treated with SU were significantly higher than those other groups (P < .001). The application of AP could not improve adhesion of resin cements to CP Ti. Thermocycling significantly reduced the μSBS values of the PAN group, whereas it noticeably enhanced the adhesion of SU and AP + SU. The predominant failure mode in all groups was adhesive.
The application of AP, followed by SU, produced the most effective bonding to CP Ti, which was able to endure limited thermal aging.
使用两种通用型粘结剂和合金底漆评估不同粘结方案与商业纯钛（CP Ti）之间的微剪切粘结强度（μSBS）。
总共120个CP Ti立方体进行空气颗粒研磨，然后根据粘结方案分为6组（每组n = 20）：（1）Scotchbond通用型粘结剂（SU；3M ESPE），（2）合金底漆（AP；可乐丽）+ SU；（3）G-Premio Bond粘结剂（GP；GC）；或（4）AP + GP。第1至4组的样本用RelyX Unicem（3M ESPE）粘结，而第5和6组的样本分别在不使用和使用AP预处理的情况下用Panavia F2.0粘结剂（PAN；可乐丽）粘结。24小时后，一半样本进行μSBS测量，另一半在测试前进行热循环（5000次循环）。数据采用Shapiro-Wilk检验、双向方差分析、Games-Howell检验和独立样本t检验（α = 0.05）进行分析。
AP + SU组获得的μSBS值显著高于GP组（P = 0.003）和AP + GP组（P = 0.022）。热循环后，两组使用SU处理后的μSBS均显著高于其他组（P < 0.001）。AP的应用不能提高树脂粘结剂与CP Ti的粘结力。热循环显著降低了PAN组的μSBS值，而显著增强了SU和AP + SU的粘结力。所有组的主要失效模式均为粘结性。
先使用AP再使用SU能与CP Ti产生最有效的粘结，且能承受有限的热老化。
