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首页> 外文期刊>Dental Materials Journal >Effect of reactive adhesives on the tensile bond strength of polyvinyl siloxane impression materials to methyl methacrylate tray material
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Effect of reactive adhesives on the tensile bond strength of polyvinyl siloxane impression materials to methyl methacrylate tray material

机译：反应性粘合剂对聚乙烯基硅氧烷印模材料对甲基丙烯酸甲酯托盘材料的拉伸粘合强度的影响

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摘要

The effect of new adhesives on the bond strength of elastomeric impression materials to acrylic trays was evaluated. Two polyvinyl siloxane impression materials (Fusion and Imprinsis) with reactive adhesives and one (Examix) with a conventional adhesive were tested. Flat, double-sided plates of auto-polymerizing methyl methacrylate (10×10×2.5 mm) were prepared with one of the adhesives. Five specimens were prepared by injecting each impression material into a 2-mm gap between the two plates. Tensile tests were conducted until separation failure occurred. The mean bond strengths of Fusion (1.0 MPa) and Imprinsis (0.8 MPa) were significantly greater than that of Examix (0.2 MPa). On the contrary, one of five Fusion showed adhesive failure mode while all the Imprinsis exhibited mixed failure. The conflicting results were presumably attributed to the mean tear strength of Fusion (0.8 N/mm) being higher than that of Imprinsis (0.5 N/mm).
机译：评估了新型粘合剂对弹性印模材料与丙烯酸托盘的粘合强度的影响。测试了两种具有反应性粘合剂的聚乙烯基硅氧烷印模材料（融合和浸渍）和一种具有常规粘合剂的（Examix）。用一种粘合剂制备了自动聚合的甲基丙烯酸甲酯（10×10×2.5 mm）的双面平板。通过将每种压印材料注入两块板之间的2毫米间隙中，制备了五个样品。进行拉伸测试直到分离失败发生。融合（1.0 MPa）和渗透（0.8 MPa）的平均粘结强度显着高于Examix（0.2 MPa）。相反，五种融合中的一种表现出粘合破坏模式，而所有的“印染”则表现出混合破坏。相互矛盾的结果可能归因于融合的平均撕裂强度（0.8 N / mm）高于融合的平均撕裂强度（0.5 N / mm）。

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