Ultrastructural evaluation of the apical seal in roots filled with a polycaprolactone-based root canal filling material

Franklin R. Tay, Robert J. Loushine, R. Norman Weller, W. Frank Kimbrough, David H. Pashley, Yiu Fai Mak, Ching Ngor Shirley Lai, Rakesh Raina, M. Chad Williams

Research output: Contribution to journalArticle

127 Scopus citations

Abstract

This in vitro study compared the ultrastructural quality of the apical seal achieved with Resilon/Epiphany and gutta-percha/AH Plus. Single-rooted extracted human teeth were prepared using a crown-down technique, debrided with NaOCI and EDTA, and obturated with either Resilon/Epiphany or gutta-percha/AH Plus. They were examined for gaps along canal walls using SEM, and for apical leakage using a transmission electron microscopy (TEM). SEM revealed both gap-free regions, and gap-containing regions in canals filled with both materials. TEM revealed the presence of silver deposits along the sealer-hybrid layer interface in Resilon/Epiphany, and between the sealer and gutta-percha in the controls. It is concluded that a complete hermetic apical seal cannot be achieved with either root filling materials.

Original languageEnglish (US)
Pages (from-to)514-519
Number of pages6
JournalJournal of endodontics
Volume31
Issue number7
DOIs
StatePublished - Jul 2005

Keywords

  • Gutta-percha
  • Leakage
  • Resilon
  • Self-etching primer
  • Silver nitrate

ASJC Scopus subject areas

  • Dentistry(all)

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    Tay, F. R., Loushine, R. J., Weller, R. N., Kimbrough, W. F., Pashley, D. H., Mak, Y. F., Lai, C. N. S., Raina, R., & Williams, M. C. (2005). Ultrastructural evaluation of the apical seal in roots filled with a polycaprolactone-based root canal filling material. Journal of endodontics, 31(7), 514-519. https://doi.org/10.1097/01.don.0000152298.81097.b7