Flexural Properties of a Heat - Polymerized Polymethyl Methacrylate Denture Resin Reinforced with Basalt Fibers

Materials Engineering eJournal Pub Date : 2021-01-01 DOI:10.2139/ssrn.3876088

Alaa'a Salloum

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Abstract

Background: Fracture of denture base made of Polymethylmethacrylate (PMMA) is a common clinical problem. To overcome this problem, several ways are used for reinforcement the PMMA . No information is available in the dental literature regarding the effect of incorporating basalt fibers on the mechanical properties of the PMMA. This study therefore investigated the flexural properties of heat-polymerized denture base acrylic resin reinforced with untreated chopped basalt fibers, and with monomer, silane, or phosphoric acid- treated chopped basalt fibers.

Methods: Sample was equally divided into five groups: group C (unreinforced with basalt fibers), group UBF (reinforced with untreated basalt fibers), group MBF (reinforced with monomer treated basalt fibers), group SBF (reinforced with silanized basalt fibers) and group PhABF (reinforced with basalt fibers treated by phosphoric acid 35%). A 3-point bending test was carried out for the test specimens with a universal testing machine.

Results: Flexural strength of Group MBF (83.71 ± 2.19)MPa and SBF (73.37 ± 2.1)MPa significantly increased in comparison of Group C (67.13 ± 1.60)MPa and the MBF group recorded the highest flexural strength.

Conclusions: Reinforcement the PMMA with monomer treated basalt fibers can be recommended.

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玄武岩纤维增强热聚合聚甲基丙烯酸甲酯义齿树脂的抗弯性能

背景:义齿基托骨折;聚甲基丙烯酸甲酯(PMMA)是一种常见的临床问题。为了克服这个问题，采用了几种方法来增强PMMA。在牙科文献中没有关于加入玄武岩纤维对机械性能的影响的信息。体系。因此，本研究研究了未经处理的短切玄武岩纤维和单体、硅烷或磷酸处理的短切玄武岩纤维增强热聚合义齿基托丙烯酸树脂的弯曲性能。方法:将样品平均分为5组:C组(未经玄武岩纤维增强)、UBF组(未经处理的玄武岩纤维增强)、MBF组(经单体处理的玄武岩纤维增强)、SBF组(硅化玄武岩纤维增强)和PhABF组(经35%磷酸处理的玄武岩纤维增强)。用万能试验机对试件进行三点弯曲试验。结果:弯曲强度;与C组(67.13±1.60)MPa相比，MBF组(83.71±2.19)MPa和SBF组(73.37±2.1)MPa显著升高，且MBF组的抗弯强度最高。结论:采用单体处理的玄武岩纤维增强PMMA是可行的。

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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Materials Engineering eJournal

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