Analysis of the penetration of NaOCl 5.25% into dentinal tubules using different irrigation protocols: An ex vivo study
Carlos Henrique Carvalhal Gasparelli, Marília Fagury Videira Marceliano‐Alves, Luan Ferreira Bastos, Ricardo Tadeu Lopes, Ana Grasiela da Silva Limoeiro, Wayne Martins Nascimento, Luiz Meton Horta dos Santos, Tchilalo Boukpessi, Adriana de Jesus Soares, Marcos Frozoni- General Dentistry
Abstract
The objective of the study was to investigate the 5.25% sodium hypochlorite (NaOCl) penetration into the dentinal tubules after different irrigation methods. Seventy canines were stained with 1% crystal violet and divided into groups (n = 20): GEC—EasyClean; GPUI—E1 Irrisonic ultrasonic insert; GXP—XP‐Endo finisher; GPC—conventional irrigation and GNC—stained tooth without irrigation. Axial sections (16×) were assessed and irrigant penetration was quantified as a bleaching halo on the surface of the apical, middle and coronal third. In the apical third, GPUI promoted greater NaOCl penetration (p < 0.05). GXP was better than GEC (p < 0.05), as was GPC (p > 0.05). The GPUI and GXP groups were similar in the middle and coronal third (p > 0.05). GPUI and GXP showed better results than GEC (p < 0.05). GPUI was more effective in the apical third and like GXP in the cervical and middle third.