Physical properties and interfacial adaptation of three epoxy resin-based sealers

Marina A. Marciano, Bruno M. Guimaraes, Ronald Ordinola-Zapata, Clovis M. Bramante, Bruno C. Cavenago, Roberto B. Garcia, Norberti Bernardineli, Flaviana B. Andrade, Ivaldo G. Moraes, Marco A.H. Duarte

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83 Scopus citations


Introduction: The aim of the study was to evaluate the radiopacity, solubility, flow, film thickness, setting time, and adaptation to the root canal walls of 3 epoxy resin-based sealers: AH Plus, Acroseal, and Adseal. Methods: Physical tests were performed following American National Standards Institute/American Dental Association's requirements. For interfacial adaptation analysis, 30 maxillary canines were shaped by using ProTaper instruments. The specimens were divided into 3 groups (n = 10): group 1, AH Plus; group 2, Acroseal; and group 3, Adseal. The sealers were mixed with rhodamine B dye, and the canals were filled by using the lateral compaction technique. The percentage of gaps and voids area was calculated at 2, 4, and 6 mm levels from the apex. Statistical evaluation was performed by using analysis of variance for physical analysis and nonparametric Kruskal-Wallis and Dunn tests for interfacial adaptation (P <.05). Results: No statistical differences were found for adaptation, percentage of voids, solubility, flow, and film thickness among the sealers (P >.05). AH Plus was significantly more radiopaque (P <.05). For the setting time, there were statistical differences among all the studied sealers (P <.05). Conclusions: AH Plus, Acroseal, and Adseal presented similar root canal adaptation, solubility, flow, and film thickness. Statistical differences were found for radiopacity and setting time (P <.05).

Original languageEnglish (US)
Pages (from-to)1417-1421
Number of pages5
JournalJournal of Endodontics
Issue number10
StatePublished - Oct 2011
Externally publishedYes

Bibliographical note

Funding Information:
Supported by the State of São Paulo Research Foundation, FAPESP ( 2009/09470-4 and 2009/15233-5 ).


  • Confocal microscopy
  • epoxy resin sealers
  • physical properties
  • root canal filling


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