Bond Strength of Reinforced Autopolymerized Acrylic Resin to Denture Base Resin

IF 3 Q3 MATERIALS SCIENCE, BIOMATERIALS

International Journal of Biomaterials Pub Date : 2023-07-07 DOI:10.1155/2023/8898843

N. Aimjirakul, Chavinee Apimanchindakul, B. Mahardawi, Pheeradej Na Nan, Suwit Wimonchit, N. Wongsirichat

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Abstract

The aim of this study was to analyze the effect of applying short E-glass fiber (SEG) and ultrahigh molecular weight polyethylene (UWPE) filler on the shear bond strength between the repaired surface of the rapid heat-cured and the reinforced autopolymerized acrylic resin. Fifty-six circular (15 × 3.3 mm2) rapid heat-cured resins were made and assigned equally to seven different groups. These were later bonded to fifty-six circular-reinforced autopolymerized acrylic resin specimens. Every test group included a control group, along with applying 1% and 2% SEG, 0.5% SEG/UWPE, 1% SEG/UWPE, and 1% and 2% UWPE. The universal testing machine was utilized to conduct the shear bond strength test. The repaired surface of these samples was assessed. Besides, the mode of failure was visualized under stereo microscope. The shear bond strength of all experimental groups was significantly higher than that of the control group. Group 3 with the addition of 1% SEG demonstrated the highest significance (12.86 MPa). The mode of failure for most of specimens was a mixed failure. Thus, it is indicated that enhancing the resin with 1% short E-glass fiber significantly improves the shear bond strength between repaired surface of the rapid heat-cured acrylic resin denture base and the reinforced autopolymerized acrylic resin.

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增强自聚合丙烯酸树脂与义齿基托树脂的结合强度

本研究的目的是分析短E玻璃纤维（SEG）和超高分子量聚乙烯（UWPE）填料对快速热固化修复表面与增强型自聚合丙烯酸树脂之间剪切结合强度的影响。五十六通知（15 × 3.3 mm2）快速热固化树脂，并平均分配到七个不同的组。这些后来被结合到五十六个圆形增强的自聚合丙烯酸树脂样品上。每个测试组都包括一个对照组，同时应用1%和2%的SEG、0.5%的SEG/UWPE、1%的SEG/UWPE以及1%和2%UWPE。利用万能试验机进行了剪切粘结强度试验。对这些样品的修复表面进行了评估。此外，在立体显微镜下观察了故障模式。所有实验组的剪切结合强度均显著高于对照组。添加1%SEG的第3组表现出最高的显著性（12.86 MPa）。大多数试样的失效模式为混合失效。因此，用1%短E玻璃纤维增强树脂可以显著提高快速热固化丙烯酸树脂义齿基托修复表面与增强的自聚合丙烯酸树脂之间的剪切结合强度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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