Effect of storage duration on tensile bond strength of acrylic or silicone-based soft denture liners to a processed denture base polymer
Effect of storage duration on tensile bond strength of acrylic or silicone-based soft denture liners to a processed denture base polymer
复制标题
储存时间对丙烯酸或有机硅软义齿衬垫与加工义齿基托聚合物拉伸粘合强度的影响
DOI：
10.1080/00016350510019667
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发表时间：
2005
影响因子：
2
通讯作者：
E. Uysal
中科院分区：
文献类型：
--
作者：
A. Meşe;Kahraman G Güzel;E. Uysal
Objective.研究储存时间对热固化或自固化衬里的丙烯酸和硅基义齿基托材料拉伸粘结强度的影响。材料和方法。所研究的义齿内衬为Vertex soft（丙烯酸基，热固化）、Coe soft（丙烯酸基，自动固化）、Molloplast-B（硅基，热固化）和Mollosil plus（硅基，自动固化）。软衬垫样本为10×10×3 mm，在两个PMMA块之间进行处理。在37°C的水中浸泡1天、1周、1个月、3个月和6个月后对其进行测试。使用万能试验机（Testometric Micro 500）以20 mm/min的十字头速度测量拉伸粘结强度（每个实验组n=10个试样）。使用多重ANOVA和Tukey HSD分析数据，预设α为0.05。结果结果表明，丙烯酸类软衬的拉伸粘结强度大于有机硅类软衬。所有衬里材料的粘结强度随着储存时间的延长而降低，丙烯酸基软衬里的降低幅度最大。自固化材料的粘结强度的降低大于热固化产品的粘结强度的降低。临床意义本研究中的材料比较表明，基于拉伸粘合强度性能，有机硅基热固化软衬具有上级优势。使用硅树脂基热固化软内衬可提供更好的长期临床成功率。这些实验室结果需要通过临床测试进行验证。
Objective. To investigate the effect of storage duration on the tensile bond strength of acrylic and silicone-based denture base materials with liners either heat-cured or auto-cured. Material and Methods. The denture liners investigated were Vertex soft (acrylic-based, heat-cured), Coe soft (acrylic-based, auto-cured), Molloplast-B (silicone-based, heat-cured), and Mollosil plus (silicone-based, auto-cured). The soft liner specimens were 10×10×3 mm and were processed between two PMMA blocks. They were tested following immersion in water at 37°C for 1 day, 1 week, and 1, 3, and 6 months. Tensile bond strength was measured using a universal testing machine (Testometric Micro 500) at a crosshead speed of 20 mm/min (n=10 specimens per experimental group). Multiple ANOVA and Tukey HSD were used to analyse the data at a pre-set alpha of 0.05. Results. The results indicate that the tensile bond strength of acrylic-based soft liners is greater than that of silicone-based materials. The bond strength of all lining materials decreases with storage duration; the decrease being greatest for the acrylic-based soft liners. The decrease in bond strength of the auto-cured materials is greater than that of the heat-cured products. Clinical significance. Comparison of the materials in this study indicates that the silicone-based, heat-cured soft liner is superior, based on the tensile bond strength property. Use of silicone-based, heat-cured soft liners may provide better clinical success over a long period. These laboratory results need to be verified by clinical testing.