In VitroStudy of the Effects of Nd:YAG Laser Irradiation on the Apical Sealing of Endodontic Fillings Performed with and without Dentin Plugs

Abstract

The Nd:YAG laser irradiation of the root canal apical third without the presence of dentin plug significantly improved the quality of the apical sealing under the experimental conditions tested.

Ultrastructural Analysis of Root Canal Dentine Irradiated with 980-nm Diode Laser Energy at Different Parameters

“…Lasers were shown to be feasible and effective tools for cleaning and disinfecting the root canal system, particularly because they helped to overcome the problem of insufficient depth of penetration of commonly used disinfecting agents. 1 The most commonly used lasers for this purpose are Er:YAG, Nd:YAG, and CO 2 , and they have the capacity to alter the morphology of root canal dentine walls and remove the smear layer, 2-4 reduce bacteria, 5,6 seal the apical foramen, 7,8 and increase or decrease dentine permeability. 9,10 Among the new lasers with a wide range of characteristics now available in various fields of dentistry, the diode wavelength of 810 nm has been complemented by a diode device emitting at 980 nm.…”

Estudio de la variación de la permeabilidad de la dentina radicular usando isótopos 99mTc, después de la aplicación de láser de alta intensidad

“…Entre los métodos más utilizados para identificar el índice de permeabilidad, encontramos la utilización de colorantes tales como nanquim, azul de metileno, rodamina B, infiltración de líquidos y utilización de radioisótopos (3)(4)(5)(6)(7)(8)(9).…”

Avaliação microbiológica in vitro da capacidade seladora da região de furca de molares humanos por diferentes materiais, associados ou não, à aplicação de laser

“…O laser de Nd:YAG por apresentar ação de ablação, fusão e recristalização dos tecidos mineralizados (ANIC; TACHIBANA; MASUMOTO, 1996;ARISU et al, 2004;GEKELMAN;PROKOPOWITSCH;BEHRENS, 1991;MATSUMOTO, 1995;MESERENDINO;LEVY;RIZOIU, 1995;SILVA, 2000;TANI;KAWADA, 1987;ZAPLETALOVÁ et al, 2007) foi empregado neste estudo com a finalidade de diminuir a permeabilidade dentinária na furca, porém 90% das amostras foram infiltradas até o 6º dia (tabela 5.1 e figura 5.1).…”