Department of Prosthodontics, School of Dentistry, Chonnam National University, Bukgu, Gwangju, Korea.
Int J Prosthodont. 2010 May-Jun;23(3):246-8.
This study compared the shear bond strength and failure types of a polymethyl methacrylate (PMMA) denture base resin to commercially pure (CP) titanium, Ti-6Al-4V alloy, and cobalt-chromium alloy using a metal surface conditioner. The PMMA denture base resin (5 x 5 x 5 mm(3)) was cured onto disks, 10 mm in diameter and 2.5-mm thick. The shear bond strength of the PMMA resin with the surface conditioner was significantly higher than that without (P < .05). There was no significant difference between the types of metal. The conditioned specimens showed mixed failures, whereas the nonconditioned specimens exhibited only adhesive failure at the metal-resin interface.
本研究比较了使用金属表面处理剂后聚甲基丙烯酸甲酯（PMMA）义齿基托树脂与商用纯（CP）钛、Ti-6Al-4V 合金和钴铬合金的剪切粘结强度和失效类型。将 PMMA 义齿基托树脂（5x5x5mm(3)）固化到直径为 10mm、厚度为 2.5mm 的圆盘上。使用表面处理剂后 PMMA 树脂的剪切粘结强度显著高于未使用时的强度（P<.05）。金属类型之间没有显著差异。经处理的试件表现为混合失效，而未经处理的试件仅在金属-树脂界面处表现出粘聚失效。
