• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Effect of LED curing on the microleakage, shear bond strength and surface hardness of a resin-based composite restoration

    Author(s)
    G. Oberholzer, Theunis
    C. Du Preez, Ignatius
    Kidd, M.
    Griffith University Author(s)
    Oberholzer, Theunis
    Year published
    2005
    Metadata
    Show full item record
    Abstract
    To determine the effect of Light emitting diode (LED) curing on dental resins, microleakage, shear bond strength and surface hardness of a dental composite cured with different LEDs were determined and compared with conventional halogen curing. For microleakage, Class V cavities were restored with Esthet-X, divided into groups, and exposed to one of the curing protocols (Elipar Freelight in soft start and standard modes; Ultra-Lume 2; Spectrum 800). Standard dye penetration tests were performed and the data summarised in a 2-way contingency table of observed frequencies. The Chi-square test was used (po0:05) to test for ...
    View more >
    To determine the effect of Light emitting diode (LED) curing on dental resins, microleakage, shear bond strength and surface hardness of a dental composite cured with different LEDs were determined and compared with conventional halogen curing. For microleakage, Class V cavities were restored with Esthet-X, divided into groups, and exposed to one of the curing protocols (Elipar Freelight in soft start and standard modes; Ultra-Lume 2; Spectrum 800). Standard dye penetration tests were performed and the data summarised in a 2-way contingency table of observed frequencies. The Chi-square test was used (po0:05) to test for significant differences between the lights. For surface hardness, samples of Esthet-X were exposed to the light-curing units (LCUs). Vickers hardness was determined on the upper and the bottom surfaces. Data was subjected to statistical analysis usingANOVA (po0:05). Shear bond strength was determined using a push out method. Comparisons (ANOVA, po0:05) were made between the different curing protocols. No significant difference in microleakage could be demonstrated between the different LCUs at the enamel side -(p 젰:60). At the dentin side only the Elipar Freelight (soft start), could significantly reduce microleakage (po0:01). The hardness score for the halogen light was significantly lower than for the LED lights (po0:01). The Spectrum 800 and the Elipar Freelight (soft start) have significantly higher shear bond strengths than the others (po0:01). It was concluded that the LED source is more efficient for a comparable overall power output.
    View less >
    Journal Title
    Biomaterials
    Volume
    26
    DOI
    https://doi.org/10.1016/j.biomaterials.2004.10.003
    Subject
    Physical Sciences not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/33448
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander