Artículos de revistas
Effect of 980-nanometer diode laser on root canal permeability after dentin treatment with different chemical solutions
Fecha
2008Registro en:
JOURNAL OF ENDODONTICS, v.34, n.6, p.721-724, 2008
0099-2399
10.1016/j.joen.2008.02.020
Autor
MARCHESAN, Melissa Andreia
BRUGNERA-JUNIOR, Aldo
OZORIO, Jose Estevam
PECORA, Jesus Djalma
SOUSA-NETO, Manoel D.
Institución
Resumen
This study evaluated the effect of 980-nm diode laser at different parameters on root canal dentin permeability associated with different irrigants. Seventy-five canines were sectioned at 15 mm from the apex, prepared mechanically up to #40 .02 instrument, and irrigated with 2 mL distilled water. Final irrigation (10 mL) was used as follows: (1) distilled water; (2) 1% NaOCl; (3) 17% ethylenediaminetetraacetic acid + a cationic surfactant cetyltrimethylammonium bromide (EDTAC). Laser was applied at 1.5 or 3.0 W as either continuous wave or pulsed wave (100 Hz). The teeth were then processed histochemically, the percentage of copper ion penetration into the dentin of the canal walls was counted, and the data were analyzed statistically with the Tukey-Kramer test (alpha < .01). When laser was associated with water, an increase in permeability was found, whereas permeability decreased when associated with EDTAC. Dentin permeability after laser irradiation was directly dependent on the solution used for final irrigation.