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CC BY 4.0 · Eur J Dent 2023; 17(04): 1065-1074
DOI: 10.1055/s-0042-1757908
Original Article

A Blinded Comparative Study of Four Commercially Available LEDs and a Laser Light Curing Device

John C. Comisi 
1   Department of Oral Rehabilitation, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
,
Cristiane Maucoski 
2   Department of Dental Clinical Sciences, Faculty of Dentistry, Dalhousie University, Halifax, Nova Scotia, Canada
,
Jonathan P. Beller
1   Department of Oral Rehabilitation, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
,
Kyle S. Dennis
1   Department of Oral Rehabilitation, James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
,
Richard B. Price 
2   Department of Dental Clinical Sciences, Faculty of Dentistry, Dalhousie University, Halifax, Nova Scotia, Canada
› Institutsangaben Funding This study was supported with an SCTR - Biomedical Informatics Center (BMIC) grant support (NIH/NCATS UL1 TR001450). This study was supported by a travel grant provided by MITACS award IT26826 for C.M. and an internal research fund grant from the Faculty of Dentistry, Dalhousie University. The study was also financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001.(CAPES grant # 88881.622852/2021-01).
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Abstract

Objective This study determined the effectiveness of five light-curing units (LCUs; four light-emitting diode [LED] and one laser) used on different settings to photo-activate four conventional resin-based composites (RBCs).

Materials and Methods A total of 108 RBC specimens were photo-activated in a white Delrin mold representing a mesial-occlusal-distal (MOD) class II restoration in a molar tooth. The proximal boxes were 5 mm deep, and the mesial-distal length was 12 mm. Immediately after photo-curing, the RBC specimens were immersed in a solvent to remove the uncured materials, after which they were photographed and deidentified. A Research Electronic Data Capture survey was created using these images and sent to respondents who blindly assessed the ability of the various LCUs to photo-cure the MOD restorations.

Results There were significant differences in how the five curing lights had cured RBCs. One-way analysis of variance (ANOVA), pairwise t-test, Welch's one-way ANOVA, and Kruskal–Wallis rank test in the blinded survey data showed significant differences between the LED curing lights used for two 10-second cures and the laser curing light used for 1 second, and LED lights at lower settings.

Conclusion There was a significant difference in how the curing lights could photo-cure the RBCs used in this study. The laser curing light used for 1 second produced the worst results in all four RBCs.

Keywords

resin-based composites - dental curing lights - LED curing lights - laser curing light

Authors' Contributions

All authors took part in the study, manuscript preparation, and editing.


J.C.C.: Investigation, resources, formal analysis, data curation, writing- original draft, writing - reviewing and editing, and visualization.


J.P.B.: Investigation, formal analysis, data curation, data analysis and interpretation, and writing-reviewing and editing.


K.S.D.: Investigation, formal analysis, data curation, data analysis and interpretation, and writing-reviewing and editing.


C.M.: Methodology and investigation.


R.B.P.: Conceptualization, methodology, project administration, investigation, formal analysis, resources, writing the article, and writing-reviewing and editing.




Publikationsverlauf

Artikel online veröffentlicht:
27. Dezember 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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