Coronal and apical leakage among five endodontic sealers

Kali Vo, Joan Daniel, Chul Ahn, Carolyn Primus, Takashi Komabayashi

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Purpose: The aim of this study was to use dye penetration to measure apical and coronal leakage simultaneously in single-canal teeth that had been treated endodontically using a single-cone obturation technique. Methods: One hundred single-canal, extracted human teeth were cleaned and shaped with ProTaper NEXT rotary files to size-X5 (50/.06), then randomly assigned to five sealer groups for single-cone gutta-percha obturation. The teeth were soaked in 0.6% rhodamine B at 37°C for seven days, then the roots were ground mesiodistally and the maximum apical and coronal dye penetration was measured. Differences in leakage among the sealer groups were examined using the Kruskal-Wallis test. Pairwise comparisons were made using the Mann-Whitney test with Bonferroni correction. Results: The mean values (mm) of dye penetration for AH Plus, Pulp Canal Sealer, NeoSEALER Flo, EndoSequence BC, and Super-Bond RC Sealer were 0.200, 0.300, 0.675, 0.850, and 0.900 apically, whereas 1.675, 2.075, 4.800, 6.500, and 4.125 coronally. Pairwise comparisons showed significant apical differences between AH Plus/Super-Bond RC Sealer (P = 0.047) and significant coronal differences between AH Plus/NeoSEALER Flo (P = 0.001), AH Plus/EndoSequence BC (P < 0.01), AH Plus/Super-Bond RC Sealer (P < 0.01), Pulp Canal Sealer/NeoSEALER Flo (P = 0.010), Pulp Canal Sealer/EndoSequence BC (P < 0.01), and Pulp Canal Sealer/Super-Bond RC Sealer (P < 0.01). Conclusion: Coronal leakage was worse than apical leakage for all sealers. AH Plus exhibited the least leakage apically and coronally; Super-Bond RC Sealer showed the most leakage apically, and EndoSequence BC showed the most leakage coronally.

Original languageEnglish (US)
Pages (from-to)95-98
Number of pages4
JournalJournal of Oral Science
Issue number1
StatePublished - 2022
Externally publishedYes


  • Endodontic sealers
  • Epoxy resin
  • Methacrylate resin
  • Sealing ability
  • Tricalcium silicate

ASJC Scopus subject areas

  • General Dentistry


Dive into the research topics of 'Coronal and apical leakage among five endodontic sealers'. Together they form a unique fingerprint.

Cite this