e-space
Manchester Metropolitan University's Research Repository

    Effect of Different Solutions on the Colour Stability of Nanoparticles or Fibre Reinforced PMMA

    Alhotan, Abdulaziz, Elraggal, Alaaeldin, Yates, Julian, Haider, Julfikar ORCID logoORCID: https://orcid.org/0000-0001-7010-8285, Jurado, Carlos Alberto and Silikas, Nikolaos (2022) Effect of Different Solutions on the Colour Stability of Nanoparticles or Fibre Reinforced PMMA. Polymers, 14 (8). p. 1521.

    [img]
    Preview
    Published Version
    Available under License Creative Commons Attribution.

    Download (878kB) | Preview

    Abstract

    This study aimed to evaluate the colour stability of polymethyl methacrylate (PMMA) denture base reinforced with ZrO2 nanoparticles, E-glass fibres, and TiO2 nanoparticles at various concentrations over 180-day storage in Steradent™ (STD) denture cleaner or coffee (CF). A total of 130 disc-shaped specimens were fabricated at various filler concentrations and divided into four main groups to measure the colour changes. Groups Z, T, and E consisted of PMMA reinforced with ZrO2 nanoparticles, TiO2 nanoparticles, or E-glass fibre, respectively, while Group C consisted of PMMA specimens without filler served as the control group (n = 10). The three reinforced groups were further subdivided according to the filler content (n = 10) added to the PMMA (1.5%, 3.0%, 5.0%, and 7.0% wt.%). Half of the specimens were stored in STD, while the other half was stored in CF for 180 days. A Minolta Chroma Meter was used to measure the colour changes (ΔE) at 7, 30, 90 and then 180 days. The results were assessed using two-way repeated-measures analysis of variance (RM-ANOVA) along with Bonferroni post hoc tests at a p ≤ 0.05 significance level. Significant different colour changes (ΔΕ) were observed between all tested groups and across different time points. TiO2-reinforced PMMA in coffee showed the lowest colour stability, while the E-glass fibre-reinforced PMMA in STD/CF showed the highest colour stability. Furthermore, coffee appeared to have the greatest impact on the CF change in comparison to the STD/CF. The results indicated that the filler type and concentration, type of solution, and length of storage all affected the colour stability of the tested specimens.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    211Downloads
    6 month trend
    237Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record