Stability of the light output, oral cavity tip accessibility in posterior region and emission spectrum of light-curing units

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dc.creatorCarolina Bosso André
dc.creatorGabriel Nima
dc.creatorMaicon Sebold
dc.creatorMarcelo Giannini
dc.creatorRichard Bengt Price
dc.date.accessioned2022-09-24T16:12:20Z
dc.date.accessioned2025-09-09T00:11:55Z
dc.date.available2022-09-24T16:12:20Z
dc.date.issued2018-07-01
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doi10.2341/17-033-L
dc.identifier.issn15592863
dc.identifier.urihttps://hdl.handle.net/1843/45430
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofOperative Dentistry
dc.rightsAcesso Aberto
dc.subjectLight-curing of dental adhesives
dc.subjectLight
dc.subjectDental occlusion
dc.subjectMolar
dc.titleStability of the light output, oral cavity tip accessibility in posterior region and emission spectrum of light-curing units
dc.typeArtigo de periódico
local.citation.epage407
local.citation.issue4
local.citation.spage398
local.citation.volume43
local.description.resumoObjectives: This study evaluated the light output from six light-emitting diode dental curing lights after 25 consecutive light exposures without recharging the battery, tip accessibility in the posterior region, and light beam spread from light-curing units. Methods: Irradiance, spectral peak, and radiant exposure were measured with the battery fully charged (Bluephase Style, ESPE Cordless, Elipar S10, Demi Ultra, Valo Cordless, and Radii-Cal) and monitored for 25 light exposures (each lasting 10 seconds). The tip diameter was measured to identify the beam size and the ability of the six light-curing units to irradiate all areas of the lower second molar in the standard output setting. Results: Four curing lights delivered a single peak wavelength from 454 to 462 nm, and two (Bluephase Style and Valo Cordless) delivered multiple emission peaks (at 410 and 458 nm and 400, 450, and 460 nm, respectively). The irradiance and radiant exposure always decreased after 25 exposures by 2% to 8%, depending on the light unit; however, only ESPE Cordless, Valo Cordless, and Radii-Cal presented a statistical difference between the first and the last exposure. The tip diameter ranged from 6.77 mm to 9.40 mm. The Radii-Cal delivered the lowest radiant exposure and irradiance. This light was also unable to access all the teeth with the tip parallel to the occlusal surface of the tooth. Conclusion: Not all of the blue-emitting lights deliver the same emission spectra, and some curing lights delivered a lower irradiance (as much as 8% lower) after the 25th exposure
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttps://meridian.allenpress.com/operative-dentistry/article/43/4/398/194861/Stability-of-the-Light-Output-Oral-Cavity-Tip

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