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

doi:10.1016/j.joen.2005.10.054

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 journal › Article › peer-review

17 Scopus citations

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 language	English (US)
Pages (from-to)	473-477
Number of pages	5
Journal	Journal of endodontics
Volume	32
Issue number	5
DOIs	https://doi.org/10.1016/j.joen.2005.10.054
State	Published - May 2006

Keywords

Collapse
EDTA
MTAD
NaOCl
demineralized dentin matrix
incomplete resin infiltration
nanoleakage

ASJC Scopus subject areas

Dentistry(all)

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10.1016/j.joen.2005.10.054

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

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.",

keywords = "Collapse, EDTA, MTAD, NaOCl, demineralized dentin matrix, incomplete resin infiltration, nanoleakage",

author = "Tay, {Franklin R.} and Yumiko Hosoya and Loushine, {Robert J.} and Pashley, {David H.} and Weller, {R. Norman} and Low, {Danny C.Y.}",

note = "Funding Information: The BioPure MTAD was a generous gift from Dentsply TulsaDental. This study was supported by grant 10204604/07840/08004/324/01, Faculty of Dentistry, the University of Hong Kong, and by R01 grants DE 014911 and DE 015306 from the NIDCR, USA (PI. David Pashley). The authors are grateful to Zinnia Ng, Michelle Barnes, and Allison Hinchcliff for secretarial support. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

month = may,

doi = "10.1016/j.joen.2005.10.054",

language = "English (US)",

volume = "32",

pages = "473--477",

journal = "Journal of Endodontics",

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AU - Tay, Franklin R.

AU - Hosoya, Yumiko

AU - Loushine, Robert J.

AU - Pashley, David H.

AU - Weller, R. Norman

AU - Low, Danny C.Y.

N1 - Funding Information: The BioPure MTAD was a generous gift from Dentsply TulsaDental. This study was supported by grant 10204604/07840/08004/324/01, Faculty of Dentistry, the University of Hong Kong, and by R01 grants DE 014911 and DE 015306 from the NIDCR, USA (PI. David Pashley). The authors are grateful to Zinnia Ng, Michelle Barnes, and Allison Hinchcliff for secretarial support. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/5

Y1 - 2006/5

N2 - 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.

AB - 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.

KW - Collapse

KW - EDTA

KW - MTAD

KW - NaOCl

KW - demineralized dentin matrix

KW - incomplete resin infiltration

KW - nanoleakage

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

Abstract

Keywords

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