Difference among shock-absorbing capabilities of mouthguard materials
Difference among shock-absorbing capabilities of mouthguard materials
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DOI：
10.1111/edt.12275
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发表时间：
2016-12-01
影响因子：
2.5
通讯作者：
Ueno, Toshiaki
中科院分区：
文献类型：
--
作者：
Fukasawa, Shintaro;Churei, Hiroshi;Ueno, Toshiaki
本研究的目的是研究商业热成型护齿片材料的减震性能。材料和方法选择12个商业热成型护齿片材料作为测试材料。冲击试验采用自由落体钢球。当在商业热成型护口器材料上施加约660 N的冲击力时，使用测力传感器测量峰强度。采用单因素方差分析和Tukey's honest significant difference post hoc test对传递力峰值强度和到达峰值强度的时间进行统计学分析（P <0. 05）。聚苯乙烯-聚烯烃共聚物基材料的峰强度低于伊娃-聚烯烃基材料的峰强度。基于聚烯烃的材料有一个趋势，一个长时间达到峰值强度从发病的transferedforce.ConclusionThese结果表明，所有的市售护齿片材料具有高的减震能力。
PurposeThe purpose of this study was to investigate the shock absorption capability of commercial thermoforming mouthguard sheet materials.Materials and methodsTwelve commercial thermoforming mouthguard sheet materials were selected as test materials. The impact test was applied by a free-falling steel ball. When impact forces of approximately 660 N were applied on the commercial thermoforming mouthguard materials, the peak intensities were measured using the load cell sensor. The peak intensity and the time to peak intensity from the onset of the transmitted force were statistically analyzed using one-way anova and Tukey's honest significant difference post hoc test (P < 0.05).ResultsStatistical analysis for the peak intensity and the time to peak intensity from the onset of the transmitted force revealed significant differences among the thirteen groups including the control. The peak intensity of the polystyrene-polyolefin copolymer-based material was lower than the peak intensity of the EVA-, polyolefin-based material. Polyolefin-based materials had a tendency of a long duration to reach peak intensity from the onset of the transmitted force.ConclusionThese results suggest that all of the commercially available mouthguard sheet materials had high shock-absorbing capabilities.