Otro
Adaptation and penetration of resin-based root canal sealers in root canals irradiated with high-intensity lasers
Registro en:
Journal Of Biomedical Optics. Bellingham: Spie-soc Photo-optical Instrumentation Engineers, v. 20, n. 3, 7 p., 2015.
1083-3668
WOS:000352272300037
Autor
Moura-Netto, Cacio
Volpi Mello-Moura, Anna Carolina
Palo, Renato Miotto
Prokopowitsch, Igor
Pameijer, Cornelis H.
Marques, Marcia Martins
Resumen
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. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)