Comparison of tensile and peel bond strengths of resilient liners.
Previous studies have shown little agreement between the test methods used to assess the bond strength and the mode of failure of resilient liners. This study evaluated the bond strength characteristics of resilient liners by means of 180-degree peeling and butt tensile strength testing. Seventy-two specimens were divided into peel bond and tensile bond specimen groups and were then subdivided into four test groups to evaluate each resilient liner. Tests were conducted with an Instron universal testing machine at a cross-head speed of 2 mm/minute for the tensile specimens and 5 mm/min for the peel specimens. Tensile bond strength and peel bond strength varied significantly among resilient liners except between Novus and Palasiv-62 liners in tensile testing. The mode of failure of Molloplast-B and Novus liners was significantly different between the tensile bond and peel bond test methods. It was concluded that bond strength characteristics can vary according to the test method used.
Kutay
O
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Department of Removable Prosthodontics, Faculty of Dentistry, University of Istanbul, Turkey.
D000180:Acrylic Resins / Q000737:chemistry*; D000704:Analysis of Variance; D017268:Dental Prosthesis Retention; D003822:Denture Liners; D006801:Humans; D008422:Materials Testing / Q000379:methods; D012826:Silicone Elastomers; D013718:Tensile Strength
D000180:Acrylic Resins; D012826:Silicone Elastomers