Comparison of some mechanical and physical properties of heat cured soft denture liner after the addition of polyamide nylon-6 micro particle

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Research Paper 01/09/2018
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Comparison of some mechanical and physical properties of heat cured soft denture liner after the addition of polyamide nylon-6 micro particle

Mohanad Saleem, Abdalbseet A Fatalla
Int. J. Biosci.13( 3), 338-347, September 2018.
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The longevity of soft denture liners depend on it is properties, that is why, defects in the material properties may reduce the service life of soft lining materials and necessitate its replacement. The aim of this study was to evaluate the effect of adding different concentrations of Polyamide-6 (Nylon-6) on the peel bond strength, tensile strength and wet ability of acrylic base heat cure soft liner. 120 samples were fabricated by the addition of 0%, 1%, 2% and 3% by weight PA-6 micro-particles powder to acrylic soft liner. The study samples were divided into three(3) groups according to test to be performed, each group containing 40 samples, 10 specimens for each concentration of PA-6 micro particle (0%,1%,2% and3%). The data were analyzed with a descriptive statistical analysis, one-way ANOVA, and Bonferroni multiple comparison test. The mean values of peel bond  and tensile strength of 1% PA-6 reinforcement group increased significantly when compared to control group and higher than the mean values of other experimental group. On other hand, there was non-significant elevation in wettability property after addition of different percentage of PA-6 micro particle powder(1%,2% and 3%). The 1% PA-6 reinforcement improved peel bond as well as tensile strength with higher value among other percentages (2% and 3%) , also improved the wettability property of acrylic soft liner.


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