Effects of Fritted Dental Porcelain Particles on Tensile and Flexural Properties of Poly Methylmethacrylate Matrix
DOI:
https://doi.org/10.26719/LJM18-2.10Keywords:
PMMA, Filler, Reinforcement, Tensile, Flexural, PropertiesAbstract
Purpose: The aim of this study was to assess influence of varying concentrations of fritted dental porcelain (FDP)
particles, at levels of 5, 10, and 15 wt.%, as reinforcement material on the mechanical properties of poly
methylmethacrylate (PMMA) matrix.
Methods: An array of methodologies was employed to analyze the raw materials associated with the preparation of FDP.
Specimens of tests were created and classified into four groups according to FDP particles concentration into PMMA
matrix to assess both tensile and flexural properties. The control group was composed of PMMA matrix containing 0 wt.%
of FDP particles. The flexural testing was conducted in compliance with ASTM D790-86 using a three-point bending test
machine, whereas the tensile testing was conducted in accordance with the specifications of ASTM D638.
Results: The results demonstrate that as FDP particles concentrations increased into PMMA matrix as tensile modulus
and flexural modulus values increased, while simultaneously, the tensile strength and flexural strength values decreased as
FDP particles concentrations increased into PMMA matrix.
Conclusions: Among various concentrations of FDP examined, the addition of a low concentration (5 wt.%) of FDP
particles to the PMMA matrix is found to be the most effective in augmenting the mechanical properties of PMMA matrix.
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