Odontological light-emitting diode light-curing unit beam quality.
In: Journal of Biomedical Optics, Jg. 20 (2015-05-01), Heft 5, S. 1-5
Online
academicJournal
Zugriff:
The distribution of light intensity of three light-curing units (LCUs) to cure the resin-based composite for dental fillings was analyzed, and a homogeneity index [flat-top factor (FTF)] was calculated. The index is based on the M2 index, which is used for laser beams. An optical spectrum analyzer was used with an optical fiber to produce an x-y power profile of each LCU light guide. The FTF-calculated values were 0.51 for LCU1 and 0.55 for LCU2, which was the best FTF, although it still differed greatly from the perfect FTF = 1, and 0.27 for LCU3, which was the poorest value and even lower than the Gaussian FTF = 0.5. All LCUs presented notably heterogeneous light distribution, which can lead professionals and researchers to produce samples with irregular polymerization and poor mechanical properties. [ABSTRACT FROM AUTHOR]
Titel: |
Odontological light-emitting diode light-curing unit beam quality.
|
---|---|
Autor/in / Beteiligte Person: | de Magalhães Filho, Thales Ribeiro ; de Mello Weig, Karin ; Martins Werneck, Marcelo ; da Costa Neto, Célio Albano ; Ferreira da Costa, Marysilvia |
Link: | |
Zeitschrift: | Journal of Biomedical Optics, Jg. 20 (2015-05-01), Heft 5, S. 1-5 |
Veröffentlichung: | 2015 |
Medientyp: | academicJournal |
ISSN: | 1083-3668 (print) |
DOI: | 10.1117/1.JBO.20.5.055005 |
Schlagwort: |
|
Sonstiges: |
|