Ultrastructural analysis of root canal dentine irradiated with 980-nm diode laser energy at different parameters - Marchesan, Melissa Andréia; Brugnera-Júnior, Aldo; Souza-Gabriel, Aline Evangelista; Correa-Silva, Silvio Rocha; Sousa Neto, Manoel Damião de (Photomedicine and Laser Surgery, 2008)