Hiraba Haruto, Koizumi Hiroyasu, Kodaira Akihisa, Takehana Kosuke, Yoneyama Takayuki, Matsumura Hideo
Department of Fixed Prosthodontics, Nihon University School of Dentistry, Tokyo Japan.
Division of Advanced Dental Treatment, Dental Research Center, Nihon University School of Dentistry, Tokyo Japan.
J Prosthodont Res. 2023 Jan 6;67(1):150-156. doi: 10.2186/jpr.JPR_D_21_00308. Epub 2022 May 14.
To clarify the effect of a multi-purpose primer combining several functional monomers on two prosthodontic materials (cast titanium and a gold alloy) after airborne-particle abrasion.
Disk-shaped adherends were prepared from cast titanium (CP Titanium JIS2) and a gold alloy (Casting Gold M.C. Type IV). A silane-containing two-liquid primer (M&C primer (MC)) and two silane-free single-liquid primers (Alloy Primer (AP) and V-Primer (VP)) were used as surface-treatment agents. The shear bond strengths were determined before and after thermocycling to evaluate the adhesive durability, and the results were compared using a non-parametric statistical analysis. The effect of airborne-particle abrasion with alumina on the titanium surface was analyzed by X-ray photoelectron spectroscopy (XPS).
There was no significant difference in bond strength between the MC and AP before and after thermocycling, whereas VP showed significantly lower values. XPS revealed that the titanium acquired hydrophilic properties after the airborne-particle abrasion.
The novelty of this study is that it shows that the presence/absence of the silane had no effect on the bonding of cast titanium with an acrylic resin. The study also showed that the multi-purpose primer can be used without any problems with both cast titanium and gold alloy, in combination with airborne-particle abrasion with alumina.
阐明一种结合多种功能单体的多功能底漆在空气颗粒磨损后对两种口腔修复材料（铸造钛和金合金）的影响。
从铸造钛（CP钛JIS2）和金合金（铸造金M.C.IV型）制备圆盘形被粘物。使用含硅烷的双液底漆（M&C底漆（MC））和两种无硅烷的单液底漆（合金底漆（AP）和V底漆（VP））作为表面处理剂。在热循环前后测定剪切粘结强度以评估粘结耐久性，并使用非参数统计分析比较结果。通过X射线光电子能谱（XPS）分析氧化铝空气颗粒磨损对钛表面的影响。
热循环前后，MC和AP之间的粘结强度无显著差异，而VP显示出显著较低的值。XPS表明，空气颗粒磨损后钛获得了亲水性。
本研究的新颖之处在于表明硅烷的有无对铸造钛与丙烯酸树脂的粘结没有影响。该研究还表明，多功能底漆与氧化铝空气颗粒磨损相结合，可毫无问题地用于铸造钛和金合金。
