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Objective: To evaluate the accuracy of five brands of radiometers in reporting the irradiance (mW/cm 2 ) from twelve brands of LCUs compared to a 'Gold Standard' (GS) reference obtained from a hand-held laboratory-grade radiometer.

Materials and Methods: The irradiance was measured from two examples of twelve brands of previously used LCUs on two examples of five brands of dental radiometers. The emission spectrum was also obtained. Irradiance data from each brand of LCU against each meter was analyzed using the Shapiro-Wilk test for normality. The irradiance values were subjected to a two-way ANOVA followed by Bonferroni tests for each LCU brand. Finally, a descriptive analysis was made using a 95% confidence interval around the mean irradiance.

Results: The power output from the LCUs ranged from 271 mW to 1005 mW. Among the tested radiometers, only the Bluephase Meter II could accurately report the irradiance from 11 out of the 12 brands of LCU evaluated in this study. When measured using the "GS" system, the mean irradiance values from the two examples of nine brands of previously used LCU were not always within ±10% of the irradiance values stated by the manufacturer.

Conclusions: The mean irradiance values from 9 of the 12 brands of used LCUs were beyond ±10% of the irradiance values stated by the manufacturer. Only the Bluephase Meter II could accurately report the irradiance from 11 out of the 12 brands of LCU evaluated in this study.

Clinical Significance: There was a wide range in the power output from the LCUs tested. It was impossible to accurately measure the irradiance from all the LCUs using the dental radiometers examined. However, dental radiometers should still be used in dental offices to monitor the light output from LCUs and verify that they are working correctly before they are used on patients.

Titel:	Irradiance from 12 LED light curing units measured using 5 brands of dental radiometers.
Autor/in / Beteiligte Person:	Maucoski, C ; Price, RB ; Arrais, CAG
Link:	Full Text Finder (Volltext)
Zeitschrift:	Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.], Jg. 35 (2023-09-01), Heft 6, S. 968-979
Veröffentlichung:	London : Wiley-Blackwell ; <i>Original Publication</i>: Hamilton, Ontario : BC Decker, c2001-, 2023
Medientyp:	academicJournal
ISSN:	1708-8240 (electronic)
DOI:	10.1111/jerd.13107
Schlagwort:	Humans Light-Curing of Dental Adhesives Radiometry Materials Testing Curing Lights, Dental Composite Resins
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article; Research Support, Non-U.S. Gov't Language: English [J Esthet Restor Dent] 2023 Sep; Vol. 35 (6), pp. 968-979. <i>Date of Electronic Publication: </i>2023 Aug 10. MeSH Terms: Curing Lights, Dental* ; Composite Resins* ; Humans ; Light-Curing of Dental Adhesives ; Radiometry ; Materials Testing References: FDI policy statement on dental amalgam and the minamata convention on mercury: adopted by the FDI general assembly: 13 September 2014, New Delhi, India. Int Dent J. 2014;64(6):295-296. ; Broadbent JM, Murray CM, Schwass DR, et al. The dental amalgam phasedown in New Zealand: a 20-year trend. Oper Dent. 2020;45(3):255-264. ; Price RB, Ferracane JL, Hickel R, Sullivan B. The light-curing unit: an essential piece of dental equipment. Int Dent J. 2020;70(6):407-417. ; Soto-Montero J, Nima G, Dias CTS, Price RBT, Giannini M. Influence of beam homogenization on bond strength of adhesives to dentin. 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Grant Information: Finance Code 001 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior; Dalhousie University; IT26826 Mitacs; IT29166 Mitacs Contributed Indexing: Keywords: dental curing lights; dental radiometer; irradiance; light; power Substance Nomenclature: 0 (Composite Resins) Entry Date(s): Date Created: 20230810 Date Completed: 20230831 Latest Revision: 20230905 Update Code: 20231215

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Irradiance from 12 LED light curing units measured using 5 brands of dental radiometers.