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Effect of High-Irradiance Light-Curing on Micromechanical Properties of Resin Cements
Joint Authors
Peutzfeldt, Anne
Lussi, Adrian
Flury, Simon
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-04
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This study investigated the influence of light-curing at high irradiances on micromechanical properties of resin cements.
Three dual-curing resin cements and a light-curing flowable resin composite were light-cured with an LED curing unit in Standard mode (SM), High Power mode (HPM), or Xtra Power mode (XPM).
Maximum irradiances were determined using a MARC PS radiometer, and exposure duration was varied to obtain two or three levels of radiant exposure (SM: 13.2 and 27.2 J/cm2; HPM: 15.0 and 30.4 J/cm2; XPM: 9.5, 19.3, and 29.7 J/cm2) (n=17).
Vickers hardness (HV) and indentation modulus (EIT) were measured at 15 min and 1 week.
Data were analyzed with nonparametric ANOVA, Wilcoxon-Mann-Whitney tests, and Spearman correlation analyses (α=0.05).
Irradiation protocol, resin-based material, and storage time and all interactions influenced HV and EIT significantly (p≤0.0001).
Statistically significant correlations between radiant exposure and HV or EIT were found, indicating that high-irradiance light-curing has no detrimental effect on the polymerization of resin-based materials (p≤0.0021).
However, one resin cement was sensitive to the combination of irradiance and exposure duration, with high-irradiance light-curing resulting in a 20% drop in micromechanical properties.
The results highlight the importance of manufacturers issuing specific recommendations for the light-curing procedure of each resin cement.
American Psychological Association (APA)
Peutzfeldt, Anne& Lussi, Adrian& Flury, Simon. 2016. Effect of High-Irradiance Light-Curing on Micromechanical Properties of Resin Cements. BioMed Research International،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1097933
Modern Language Association (MLA)
Peutzfeldt, Anne…[et al.]. Effect of High-Irradiance Light-Curing on Micromechanical Properties of Resin Cements. BioMed Research International No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1097933
American Medical Association (AMA)
Peutzfeldt, Anne& Lussi, Adrian& Flury, Simon. Effect of High-Irradiance Light-Curing on Micromechanical Properties of Resin Cements. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1097933
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1097933