e-space
Manchester Metropolitan University's Research Repository

    Assessing Tensile Bond Strength between Denture Teeth and nano Zirconia Impregnated PMMA Denture Base

    Zidan, Saleh, Silikas, Nikolaos, Haider, Julfikar ORCID logoORCID: https://orcid.org/0000-0001-7010-8285, Alhotan, Abdulaziz, Jahantigh, Javad and Yates, Julian (2020) Assessing Tensile Bond Strength between Denture Teeth and nano Zirconia Impregnated PMMA Denture Base. International Journal of Nanomedicine, 2020 (15). pp. 9611-9625. ISSN 1176-9114

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

    Download (8MB) | Preview

    Abstract

    Purpose: This study evaluated tensile bond strength (TBS) between anterior acrylic teeth and denture bases made of high-impact heat-cured acrylic resin (HI PMMA) impregnated with zirconia nanoparticles. Materials and Methods: A total of 30 specimens (each specimen containing a set of six upper anterior teeth) were fabricated from HI PMMA denture base acrylic resin reinforced with different weight concentrations of zirconia nanoparticles: 0% (control), 1.5%, 3%, 5%, 7% and 10%. TBS was tested according to a British standard (BS EN ISO 22112: 2017). A one-way analysis of variance (ANOVA) was employed with a Tukey post-hoc test. Results: TBS values between the anterior teeth (central and lateral incisors and canine) and HI-PMMA denture base groups containing 7 wt.% (261.5 ± 66.0 N, 172.5 ± 57.4 N and 271.9 ± 86.3 N) and 10 wt.% (332.1 ± 122.9 N, 165.4 ± 48.7 N and 301.6 ± 73.2 N) zirconia were significantly lower compared to the control group (645.4 ± 84.8 N, 306.1 ± 81.6 N and 496.7 ± 179.1 N) and the other nanocomposite groups. However, TBS values for HI PMMA with 1.5 wt.% (534.4 ± 115.3 N, 304.7 ± 86.4 N, 514.0 ± 143.2 N), 3 wt.% (685.7 ± 159.6 N, 281.1 ± 78.3 N, 462.6 ± 122.1 N) and 5 wt.% (514.5 ± 134.3 N, 229.8 ± 67.3 N, 387.2 ± 99.4 N) zirconia showed slightly lower values than that of the control group but these were not significant. Failure modes between the teeth and denture base nanocomposites were predominantly cohesive fractures, which were clinically acceptable according to the Standard. Conclusion: The addition of zirconia nanoparticles to HI PMMA denture base at high concentration (7 wt.% and 10 wt. %) significantly (p< 0.05) reduced the bonding strength for all types of anterior teeth compared to the control group.

    Impact and Reach

    Statistics

    Activity Overview
    6 month trend
    269Downloads
    6 month trend
    111Hits

    Additional statistics for this dataset are available via IRStats2.

    Altmetric

    Repository staff only

    Edit record Edit record