TRANSVERSE STRENGTH AND FATIGUE OF DENTURE ACRYLIC GLASS-FIBER COMPOSITE
TRANSVERSE STRENGTH AND FATIGUE OF DENTURE ACRYLIC GLASS-FIBER COMPOSITE
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DOI：
10.1016/0109-5641(94)90051-5
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发表时间：
1994-03-01
期刊：
影响因子：
5
通讯作者：
LAPPALAINEN, R
中科院分区：
文献类型：
--
作者：
VALLITTU, PK;LASSILA, VP;LAPPALAINEN, R
目标。本实验的目的是：1）测试高浓度的连续玻璃纤维对热固化丙烯酸树脂试样的横向强度的影响； 2) 确定成型为上部全口义齿的热固化丙烯酸树脂的未增强和连续玻璃纤维增强样品的疲劳弱化。方法。采用三点加载试验来确定测试样本的横向强度（每组 n=30）。疲劳试验为恒定偏转试验（每组n=10）。结果。结果表明，与未增强的样品相比，浓度为 58 wt% 的连续玻璃纤维将测试样品的横向强度提高了 146%（p
Objectives. The aims of this experiment were: 1) to test the effect of a high concentration of continuous glass fibers on the transverse strength of test specimens made of heat-cured acrylic resin; and 2) to determine the fatigue weakening of both unreinforced and continuous glass fiber-reinforced specimens of heat-cured acrylic resin shaped into upper complete dentures.Methods. A three-point loading test was used to determine the transverse strength of test specimens (n=30 per group). The fatigue test was the constant deflection test (n=10 per group).Results. The results revealed that, compared to unreinforced specimens, continuous glass fibers at a concentration of 58 wt% enhanced the transverse strength of the test specimens up to 146% (p