Comparison of adhesiveness of chewing gum to hard and soft denture base materials
Comparison of adhesiveness of chewing gum to hard and soft denture base materials
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口香糖对硬、软义齿基托材料的粘附性比较
DOI：
10.1016/j.jpor.2019.10.008
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发表时间：
2020
影响因子：
3.6
通讯作者：
Sakurai Kaoru
中科院分区：
文献类型：
--
作者：
Wada Takeshi;Ueda Takayuki;Morita Kuniko;Nezu Yuichi;Kubo Keitaro;Kamba Koji;Sakurai Kaoru
目的：本研究的目的是比较口香糖与软硬义齿基托材料的粘附性，以研究与义齿基托表面相关的食物固位。方法：采用丙烯酸树脂[Re]、钴铬合金[Co]、氧化锆[Zr]、硅胶软衬材料[SS]、丙烯酸软衬材料[AS]制备试件。样品被放置在装有数字力计的上下一对升降平台上。实验者咀嚼3.0 g口香糖5分钟。擦去表面唾液后，将口香糖放在下测试碎片上压缩，直到上下测试碎片之间的距离减小到1mm。上部试验破片以100 mm/min的十字头速度拉动。在干燥条件下和在放置人工唾液的潮湿条件下测量黏附性。结果：在干燥条件下，Re（17.04±1.99 N）、Co（12.88±2.20 N）、Zr（3.80±1.03 N）、SS（5.76±1.41 N）、AS（12.54±2.44 N）的粘接强度分别为17.04±1.99 N、12.88±2.20 N。在湿态条件下，Re的粘接强度为5.26±1.64 N， Co为0.96±0.21 N， Zr为3.32±0.40 N， SS为5.20±1.35 N， AS为6.78±1.97 N。结论：在硬质义齿基托材料中，氧化锆在干湿条件下黏附性较低，Re黏附性较高。Co的粘附力在潮湿条件下较低，而在干燥条件下较高。在软性义齿基托材料中，干燥条件下SS的粘连性低于AS。在干湿条件下，SS的黏附力均较低。
Purpose: The purpose of this study was to compare the adhesiveness of chewing gum to hard and soft denture base materials to investigate food retention associated with the basal surface of the denture.Methods: Test specimens were fabricated using acrylic resin [Re], cobalt-chromium alloy [Co], zirconia [Zr], silicone soft relining material [SS], and acrylic soft relining material [AS]. Samples were set on a top-andbottom pair lifting platform equipped with a digital force gauge. The experimenter chewed 3.0 g of chewing gum for 5 min. After surface saliva was wiped off, the chewing gum was placed on the lower test fragment and compressed until the distance between the upper and lower test fragments decreased to 1 mm. The upper test fragment was pulled at a crosshead speed of 100 mm/min. Adhesiveness was measured under dry conditions, and under wet conditions with inter-positioned artificial saliva.Results: Under dry conditions, the adhesive strength was 17.04±1.99 N for Re, 12.88±2.20 N for Co, 3.80±1.03 N for Zr, 5.76±1.41 N for SS, and 12.54±2.44 N for AS. Under wet conditions, the adhesive strength was 5.26±1.64 N for Re, 0.96±0.21 N for Co, 3.32±0.40 N for Zr, 5.20±1.35 N for SS, and 6.78±1.97 N for AS.Conclusions: Among the hard denture base materials, zirconia recorded low adhesiveness and Re recorded high adhesiveness under both wet and dry conditions. The adhesiveness of Co was low under wet conditions but high under dry conditions. Among the soft denture base materials, SS under dry conditions recorded lower adhesiveness than that of AS. The adhesiveness of SS was low under both wet and dry conditions.