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

J Endod. 2011 Oct;37(10):1417-21. doi: 10.1016/j.joen.2011.06.023. Epub 2011 Aug 6.

Abstract

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).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Analysis of Variance
  • Chemistry Techniques, Synthetic
  • Contrast Media
  • Cuspid
  • Dental Marginal Adaptation*
  • Epoxy Resins / chemistry
  • Humans
  • Materials Testing
  • Microscopy, Confocal
  • Rheology
  • Root Canal Filling Materials* / chemistry
  • Solubility
  • Statistics, Nonparametric
  • Viscosity

Substances

  • Acroseal
  • Contrast Media
  • Epoxy Resins
  • Root Canal Filling Materials
  • epoxy resin-based root canal sealer