The effectiveness of passive ultrasonic irrigation and the easy-clean instrument for removing remnants of filling material

Danielle Santos de Souza; Aline S S Silva; Fabiola Ormiga; Ricardo T Lopes; Heloisa Gusman

doi:10.4103/JCD.JCD_590_20

The effectiveness of passive ultrasonic irrigation and the easy-clean instrument for removing remnants of filling material

J Conserv Dent. 2021 Jan-Feb;24(1):57-62. doi: 10.4103/JCD.JCD_590_20. Epub 2021 Jul 5.

Authors

Danielle Santos de Souza¹, Aline S S Silva², Fabiola Ormiga¹, Ricardo T Lopes², Heloisa Gusman¹

Affiliations

¹ Department of Dental Clinic, Center of Technology, Federal University of Rio de Janeiro, Brazil.
² Department of Nuclear Instrumentation, Center of Technology, Federal University of Rio de Janeiro, Brazil.

Abstract

Objective: This study aimed to evaluate the efficacy of passive ultrasonic irrigation (PUI) and the easy clean instrument by micro-computed tomography (CT) for removing remnant filling materials during endodontic retreatment.

Materials and methods: Forty mesial roots of mandibular molars were divided into four groups (n = 10) according to the agitation system and sealer used: Group 1: PUI/AH Plus; Group 2: PUI/TotalFill; Group 3: Easy Clean/AH Plus; and Group 4: Easy Clean/TotalFill. The groups were compared by micro-CT analysis according to the volumes of the obturation and the remaining material before and after the agitation systems were used.

Results: There was no difference between the groups for total filling volume and initial and final remaining filling volume (P > 0.05).

Conclusions: Both the PUI and easy-clean instrument are effective for removing remnants of filling material with no difference between the groups.

Keywords: Endodontic sealer; micro-computed tomography; passive ultrasonic irrigation; retreatment.