2005
DOI: 10.1089/pho.2005.23.590
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Morphologic Evaluation of the Radicular Dentine Irradiated with Nd:YAG Laser Under Different Parameters and Angles of Incidence

Abstract: The increase in power and frequency of the Nd:YAG laser irradiation produced more visible morphological alterations than the lower settings. The removal of the smear layer increased the number of visible dentinal tubule openings.

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Cited by 32 publications
(32 citation statements)
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“…As both systems are in the NIR portion of the electromagnetic spectrum, 38 part of the energy is absorbed by the mineral structures of dentin such as phosphate and carbonate, disarranging the crystalline arrangement because of thermochemical ablation and provoking melting of the dentin tissue. 39,40 These transformations are more intense when higher parameters are used. 41 SEM analysis was used to verify ultrastructural changes of the irradiated dentine.…”
Section: Discussionmentioning
confidence: 99%
“…As both systems are in the NIR portion of the electromagnetic spectrum, 38 part of the energy is absorbed by the mineral structures of dentin such as phosphate and carbonate, disarranging the crystalline arrangement because of thermochemical ablation and provoking melting of the dentin tissue. 39,40 These transformations are more intense when higher parameters are used. 41 SEM analysis was used to verify ultrastructural changes of the irradiated dentine.…”
Section: Discussionmentioning
confidence: 99%
“…26,34 Canal wall temperature was not monitored during the laser operation; however, when the selected parameters and Laser Activated Sodium Hypochlorite in Intracanal Smear layer removal time are compared with the previous literature, they are found to be within safe limits. 36 The use of lasers with irrigation solutions generates less heat and is safer. 34 Currently, the LAI method has been introduced for more activation by irrigation.…”
Section: Discussionmentioning
confidence: 99%
“…Outrossim, o tratamento com irradiação laser poderia prevenir ou mitigar a contaminação do sistema endodôntico após sua irradiação (ARANHA et al, 2005;BELLO-SILVA et al, 2006;BIEDMA et al, 2005;BRUGNERA JR., et al, 2003;CAMARGO et al, 2005;EDUARDO, 2004;KHAN et al, 1997;KURUMADA, 1990;LAGE-MARQUES;MATSUMOTO, 1995;LAGE-MARQUES;LAN, 1999;LIN et al, 2001;PÉCORA et al, 2000;PICK, 1987;TAKEDA et al, 1998;TAKEDA et al, 1999;TANJI;SANTOS et al, 2005;SCHOOP et al, 2002;SOARES et al, 2006 PAJIC, 1990;LEVER, 1995;MARSHALL;MASSLER;DUTE, 1960;PASHLEY et al, 1981 LAN, 1999;LIN et al, 2001). Outrossim, Lee et al, (2002), que irradiaram com Nd:YAG a superfície dentinária impregnada com nanquim, observaram que esse laser pode ser empregado para reduzir a permeabilidade dentinária.…”
Section: Grupos Médiasunclassified
“…Supõe-se que a remoção do magma dentinário permite, entre outras vantagens, melhor imbricamento mecânico do material obturador nas paredes dos canais radiculares e não limita a ação de desinfetantes e medicações intracanais MUENCH, 1989;PROKOPOWITSCH, 1994;SEN;WESSELINK;TÜRKÜN, 1995 Os resultados observados na avaliação qualitativa da limpeza das paredes dentinárias dos canais radiculares, dos espécimes dos grupos 1, 2 e 3, são similares aos da literatura pertinente, pois o laser de Er:YAG, além de agir complementando a desinfecção da dentina exposta a essa irradiação, promoveu maior limpeza da superfície tratada, com remoção do magma dentinário e abertura de maior número de túbulos dentinários (Apêndice G), em comparação aos grupos que receberam a irradiação com laser de Nd:YAG ou simplesmente não receberam aplicação de qualquer irradiação laser (Apêndice F) (ARAKI et al, 2006;ARAKI, 2007;ARANHA et al, 2005;BELLO-SILVA et al, 2006;BERGMANS et al, 2006;BIEDMA et al, 2005;CAMARGO et al, 2005;CECCHINI, 2001;GUERISOLI et al, 2002;LAGE-MARQUES;MATSUMOTO, 1995;LAGE-MARQUES;LAN, 1999;LEE et al, 2002;LIN et al, 2001;ANTONIAZZI, 2004;MOSHONOV et al, 1995;SANTOS et al, 2005;SCHOOP et al, 2002;SOARES et al, 2006;TAKEDA et al, 1998;TANJI;.…”
Section: Grupos Médiasunclassified