MACHADO, Ricardo et al. Removal of the smear layer by passive and continuous ultrasonic irrigation: a scanning electron microscopy study.. Journal of Oral Research, [S.l.], v. 10, n. 6, p. 1-8, dec. 2021. ISSN 0719-2479. Available at: <https://www.joralres.com/index.php/JOralRes/article/view/joralres.2021.070>. Date accessed: 12 july 2024. doi: https://doi.org/10.17126/joralres.2021.070.