Ultrastructure of Intraradicular Dentin After Irrigation with BioPure MTAD. II. The Consequence of Obturation with an Epoxy Resin-Based Sealer

Franklin R. Tay, Yumiko Hosoya, Robert J. Loushine, David H. Pashley, R. Norman Weller, Danny C.Y. Low

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

In addition to an initial report on the creation of thick demineralized collagen matrices in root dentin that were irrigated with BioPure MTAD or EDTA as final rinses for 5 minutes, this study examined the effect of a 2-minute irrigation time of these final irrigants on the extent of demineralization of intact intraradicular dentin and on interfacial nanoleakage after obturation with AH Plus and gutta-percha using warm vertical compaction. Transmission electron microscopy confirmed that the reduction in irrigation time did not compromise the smear layer removing capacity of these two irrigants when 1.3% NaOCl was employed as the initial rinse. BioPure MTAD created 5 to 6 μm thick demineralized dentin matrices, while 17% EDTA produced 1 to 2 μm thick matrices that were suboptimally infiltrated by the epoxy resin-based sealer, as manifested by the occurrence of silver tracer deposits within the hybrid layers.

Original languageEnglish (US)
Pages (from-to)473-477
Number of pages5
JournalJournal of Endodontics
Volume32
Issue number5
DOIs
StatePublished - May 1 2006

Fingerprint

Epoxy Resins
Dentin
Edetic Acid
Smear Layer
Gutta-Percha
Transmission Electron Microscopy
Silver
Collagen
MTAD (intracanal irrigant)
epoxy resin-based root canal sealer
Demineralized Dentin Matrix

Keywords

  • Collapse
  • EDTA
  • MTAD
  • NaOCl
  • demineralized dentin matrix
  • incomplete resin infiltration
  • nanoleakage

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Ultrastructure of Intraradicular Dentin After Irrigation with BioPure MTAD. II. The Consequence of Obturation with an Epoxy Resin-Based Sealer. / Tay, Franklin R.; Hosoya, Yumiko; Loushine, Robert J.; Pashley, David H.; Weller, R. Norman; Low, Danny C.Y.

In: Journal of Endodontics, Vol. 32, No. 5, 01.05.2006, p. 473-477.

Research output: Contribution to journalArticle

Tay, Franklin R. ; Hosoya, Yumiko ; Loushine, Robert J. ; Pashley, David H. ; Weller, R. Norman ; Low, Danny C.Y. / Ultrastructure of Intraradicular Dentin After Irrigation with BioPure MTAD. II. The Consequence of Obturation with an Epoxy Resin-Based Sealer. In: Journal of Endodontics. 2006 ; Vol. 32, No. 5. pp. 473-477.
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