Al-Harthi Abdullah A, Aljoudi Mohammed H, Almaliki Mulham N, El-Banna Khalid A
Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia, Phone: +966595066644, e-mail:
Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia.
J Contemp Dent Pract. 2018 Aug 1;19(8):918-924.
To evaluate the effect of Monobond Etch & Prime on the micro-shear bond strength (MSBS) of resin cements to leucite surface and to compare the MSBS of two different resin cements to conditioned leucite surfaces with different primer systems.
Twenty-one leucite ceramic disks (10 mm diameter, 2 mm thickness) were divided into three groups (n = 7). Group I: 9.6% hydrofluoric (HF) acid and Monobond S (Ivoclar Vivadent, Liechtenstein), then conventional resin cement was applied. Group II: Monobond Etch & Prime (Ivoclar Vivadent, Liechtenstein), then conventional resin cement was applied. Group III: 9.6% HF acid and with Monobond N (Ivoclar Vivadent, Liechtenstein), then adhesive resin cement was applied. The assigned resin cement was applied in each disk through five plastic tubes with an inner diameter of 1.6 and 1.9 mm height, and then light cured. Micro-shear bond strength was determined by pulling out the resin cement using universal testing machine (Instron, USA).
One-way analysis of variance (ANOVA) and Student's t-test were used to determine statistical difference (a = 0.05) between each two groups. The results showed that group III had the highest MSBS values (7.32 ± 2.47) followed by group II (6.24 ± 2.16), whereas group I had the lowest MSBS values (5.7 ± 2.7). Nevertheless, there was no statistically significant difference between the results of all the groups.
Monobond Etch & Prime has shown comparable results to the most popular combination of HF acid and silane. The combination of HF acid and Monobond N and self-adhesive resin cement has shown the best MSBS results, though not statistically significant.
The clinicians can use simplified ceramic primer technique (Monobond Etch & Prime) which has comparable MSBS to the most popular combination of HF acid and silane.
评估单键蚀刻与底涂剂（Monobond Etch & Prime）对树脂水门汀与白榴石表面微剪切粘结强度（MSBS）的影响，并比较两种不同树脂水门汀与使用不同底涂剂系统处理的白榴石表面的微剪切粘结强度。
将21个白榴石陶瓷盘（直径10 mm，厚度2 mm）分为三组（n = 7）。第一组：用9.6%氢氟酸（HF）和单键底涂剂S（义获嘉伟瓦登特，列支敦士登）处理，然后应用传统树脂水门汀。第二组：用单键蚀刻与底涂剂（义获嘉伟瓦登特，列支敦士登）处理，然后应用传统树脂水门汀。第三组：用9.6%氢氟酸和单键底涂剂N（义获嘉伟瓦登特，列支敦士登）处理，然后应用粘结性树脂水门汀。通过五个内径为1.6 mm、高度为1.9 mm的塑料管将指定的树脂水门汀涂覆在每个圆盘上，然后光固化。使用万能试验机（美国英斯特朗公司）拔出树脂水门汀来测定微剪切粘结强度。
采用单因素方差分析（ANOVA）和学生t检验来确定每两组之间的统计学差异（α = 0.05）。结果显示，第三组的微剪切粘结强度值最高（7.32 ± 2.47），其次是第二组（6.24 ± 2.16），而第一组的微剪切粘结强度值最低（5.7 ± 2.7）。然而，所有组的结果之间没有统计学上的显著差异。
单键蚀刻与底涂剂显示出与氢氟酸和硅烷最常用组合相当的结果。氢氟酸与单键底涂剂N和粘结性树脂水门汀的组合显示出最佳的微剪切粘结强度结果，尽管在统计学上不显著。
临床医生可以使用简化的陶瓷底涂剂技术（单键蚀刻与底涂剂），其微剪切粘结强度与氢氟酸和硅烷最常用组合相当。
