Polymerization efficiency of dental dual-cured resin cement light-cured at various times after the initiation of chemical activation

Ji Suk Shim, Soo Young Lee, So Yeon Song, Nayansi Jha, Jae Jun Ryu

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    This study reports the effect of light-exposure timing on the polymerization results of the dental dual-cured resin cement using multiple measurements over time. Specimens were light-polymerized at 5 different delayed time points after mixing the materials: immediate (1 min), 10 min, 30 min, 60 min, and 2 weeks. The degree of conversion (DC) measurement with infrared spectroscopy (IR) measurements and surface hardness test with Vickers diamond indenter was performed. The group that underwent immediate light-curing showed statistically lower DC at 2 weeks compared to groups with provided longer delay time in light-curing. (p < 0.05).

    Keywords

    • Dental resin
    • dual-cured resin cement
    • infrared spectroscopy
    • light-curing
    • polymerization

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Chemical Engineering(all)
    • Polymers and Plastics

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