Filler features and their effects on wear and degree of conversion of particulate dental resin composites
Filler features and their effects on wear and degree of conversion of particulate dental resin composites
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DOI：
10.1016/j.biomaterials.2005.01.026
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发表时间：
2005-08-01
期刊：
影响因子：
14
通讯作者：
Vogel, K
中科院分区：
文献类型：
--
作者：
Turssi, CP;Ferracane, JL;Vogel, K
基于对填料特性如何影响树脂复合材料的耐磨性和单体转化的不完全理解，本研究试图评估含有不同形状和尺寸组合的填料颗粒的材料是否会在三体磨损和转化程度方面表现相似。测试了12种含有球形或不规则形状填料的实验性单峰、双峰或三峰复合材料，范围从100到1500nm。在OHSU磨损机中进行磨损测试（n = 6），并在105次循环后使用轮廓仪进行量化。采用FTIR光谱法测定复合材料表面的转化度（DC） （n = 6）。数据集分析采用单因素方差分析和Tukey检验，显著性水平为0.05。填料尺寸和几何形状对复合材料的耐磨性和直流性能有显著影响。在特定的尺寸和组合下，球形或不规则的小填充颗粒的存在可能有助于增强复合材料的耐磨性，而不会影响反应碳双键的百分比。(c) 2005 Elsevier Ltd版权所有。
Based on the incomplete understanding on how filler features influence the wear resistance and monomer conversion of resin composites, this study sought to evaluate whether materials containing different shapes and combinations of size of filler particles would perform similarly in terms of three-body abrasion and degree of conversion. Twelve experimental monomodal, bimodal or trimodal composites containing either spherical or irregular shaped fillers ranging from 100 to 1500nm were examined. Wear testings were conducted in the OHSU wear machine (n = 6) and quantified after 105 cycles using a profilometer. Degree of conversion (DC) was measured by FTIR spectrometry at the surface of the composites (n = 6). Data sets were analyzed using one-way Anova and Tukey's test at a significance level of 0.05. Filler size and geometry was found to have a significant effect on wear resistance and DC of composites. At specific sizes and combinations, the presence of small filler particles, either spherical or irregular, may aid in enhancing the wear resistance of composites, whithout compromising the percentage of reacted carbon double bonds. (c) 2005 Elsevier Ltd. All rights reserved.