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18 March 2015 Adaptation and penetration of resin-based root canal sealers in root canals irradiated with high-intensity lasers
Cacio Moura-Netto D.D.S., Anna Carolina Volpi Mello-Moura D.D.S., Renato Miotto Palo, Igor Prokopowitsch, Cornelis Hans Pameijer, Márcia M. Marques D.D.S.
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Journal of Biomedical Optics, Vol. 20, Issue 3, 038002 (March 2015). https://doi.org/10.1117/1.JBO.20.3.038002
Abstract
This research analyzed the quality of resin-based sealer adaptation after intracanal laser irradiation. Extracted teeth (n=168) were root canal treated and divided into four groups, according to dentin surface treatment: no laser; Nd:YAG laser (1.5 W, 100 mJ, 15 Hz); diode laser (2.5 W in CW), and Er:YAG laser (1 W, 100 mJ, 10 Hz). The teeth were divided into four subgroups according to the sealer used: AH Plus, EndoREZ, Epiphany, and EpiphanySE. For testing the sealing after root canal obturation, the penetration of silver nitrate solution was measured, whereas to evaluate the adaptation and penetration of the sealer into the dentin, environmental scanning electron microscopy (ESEM) was used. The ESEM images were analyzed using a four-grade criteria score by three evaluators. The inter-examiner agreement was confirmed by Kappa test and the scores statistically compared by the Kruskal-Wallis’ test (p<0.05). Both adaptation and sealer penetration in root canals were not affected by the laser irradiation. Nd:YAG and diode laser decreased the tracer penetration for AH Plus, whereas EndoREZ and EpiphanySE performances were affected by Nd:YAG irradiation (p<0.05). It can be concluded that intracanal laser irradiation can be used as an adjunct in endodontic treatment; however, the use of hydrophilic resin sealers should be avoided when root canals were irradiated with Nd:YAG laser.38002
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Cacio Moura-Netto D.D.S., Anna Carolina Volpi Mello-Moura D.D.S., Renato Miotto Palo, Igor Prokopowitsch, Cornelis Hans Pameijer, and Márcia M. Marques D.D.S. "Adaptation and penetration of resin-based root canal sealers in root canals irradiated with high-intensity lasers," Journal of Biomedical Optics 20(3), 038002 (18 March 2015). https://doi.org/10.1117/1.JBO.20.3.038002
Published: 18 March 2015
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KEYWORDS
Nd:YAG lasers
Laser irradiation
Scanning electron microscopy
Semiconductor lasers
Teeth
Silver
Er:YAG lasers
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