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Effect of curing mode on polymerization kinetics, mechanical properties, and dentin adhesion of self-adhesive and conventional resin cements.
- Source :
-
Journal of Adhesion Science & Technology . Oct2023, Vol. 37 Issue 19, p2683-2695. 13p. - Publication Year :
- 2023
-
Abstract
- The objective was to evaluate the effect of curing mode on polymerization kinetics, biaxial flexural strength (FS) and modulus (MO), and dentin bond strength (BS) of self-adhesive and conventional resin-based cements. Two materials were evaluated: one self-adhesive G-Cem LinkAce (GC) and one conventional resin cement RelyX Ultimate (RU). Polymerization kinetics was followed by infrared spectroscopy (n = 5). Disc specimens of light-activated or self-cured materials were tested for FS and MO (n = 10). Extracted human molars were divided into 4 groups (n = 10) according to resin cement, curing mode, and evaluation time (24 hs and 1 year). Composite discs were used to simulate indirect restoration which bonded to occlusal dentin with the resin cements, and light-activated or allowed to self-cure, and restored teeth were tested for microtensile BS. Data were submitted to statistical analysis at 5% significance level. A rapid rise in conversion was observed when materials were light-activated. When self-cured, RU demonstrated a slower polymerization rate and lower conversion than GC. Dual curing yielded higher FS, MO, and BS than self-curing mode to RU cement, while no significant differences were observed for GC. Light-activation influences polymerization kinetics of resin-based cement, but it did not influence the mechanical properties and adhesion of the self-adhesive cement tested (GC). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01694243
- Volume :
- 37
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Journal of Adhesion Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 171997518
- Full Text :
- https://doi.org/10.1080/01694243.2023.2166384