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Dentinal tubule penetration and root canal cleanliness following ultrasonic activation of intracanal‐heated sodium hypochlorite
Author(s) -
Iandolo Alfredo,
Abdellatif Dina,
Amato Massimo,
Pantaleo Giuseppe,
Blasi Andrea,
Franco Vittorio,
Neelakantan Prasanna
Publication year - 2020
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/aej.12393
Subject(s) - sodium hypochlorite , dentinal tubule , root canal , penetration (warfare) , dentistry , materials science , chemistry , dentin , medicine , mathematics , organic chemistry , operations research
This study investigated the effect of ultrasonic activation of intracanal‐heated sodium hypochlorite (NaOCl) on its dentinal tubular penetration and root canal cleanliness in vitro . In experiment 1, mandibular premolars were randomly allocated to three groups ( n = 8): group A, ultrasonic activation; group B, ultrasonic activation of intracanal‐heated NaOCl and group C, syringe‐and‐needle irrigation. Penetration of the fluorescent‐labelled NaOCl was investigated using light microscopy. In experiment 2, mandibular premolars were randomly allocated to group B or C ( n = 10), for histological analysis of the remaining pulp tissue and debris. Data were statistically analysed using Kruskal–Wallis and Mann–Whitney tests ( P = 0.05). The highest penetration of NaOCl was observed in group B, followed by group A ( P < 0.05). Group B showed significantly less amount of debris than group C ( P < 0.05). Dentinal tubule penetration of NaOCl and root canal cleanliness were significantly improved by ultrasonic activation of intracanal‐heated NaOCl.