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Volume 23 , Issue 3
May/June 2010

Pages 246248

Shear Bond Strength and Failure Types of Polymethyl Methacrylate Denture Base Resin and Titanium Treated with Surface Conditioner

Hyun-Pil Lim, DDS, MSD/Su-Sung Kim, DDS, MSD/Hong-So Yang, DDS, PhD/Mong-Sook Vang, DDS, PhD

PMID: 20552091

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 3 5 3 5 mm3) 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. Int J Prosthodont 2010;23:246248.

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