HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Sadek, F.T. Articles by Tay, F.R. Search for Related Content PubMed PubMed Citation Articles by Sadek, F.T. Articles by Tay, F.R.

Tubular Occlusion Optimizes Bonding of Hydrophobic Resins to Dentin

¹ Department of Dental Materials, School of Dentistry, University of São Paulo, Brazil;
² Department of Restorative Dentistry and Dental Materials, School of Dentistry, University of Siena, Italy; and
³ Department of Oral Biology & Maxillofacial Pathology, School of Dentistry, Medical College of Georgia, Augusta, GA 30912-1129, USA

^* corresponding author, franklintay{at}gmail.com

Although hydrophobic resins may be bonded to acid-etched dentin with an ethanol wet-bonding technique, the protocol is sensitive to moisture contamination when bonding is performed in deep dentin. This study tested the hypothesis that the use of oxalate or poly(glutamic) acid-modified, diluted ceramicrete (PADC) for dentinal tubule occlusion prevents fluid contamination and improves the bonding of an experimental hydrophobic adhesive to acid-etched, ethanol-dehydrated dentin. Mid-coronal and deep acid-etched moist dentin pre-treated with oxalate or PADC was dehydrated by ethanol wet-bonding and infiltrated with the experimental three-step etch-and-rinse hydrophobic adhesive under simulated pulpal pressure. Tensile bond strengths to deep dentin without pre-treatment were severely compromised. Conversely, oxalate and PADC pre-treatments reduced dentin permeability, prevented water contamination, and improved bond strengths. Minimal nanoleakage was identified within hybrid layers created in the oxalate- and PADC-pre-treated deep dentin. The use of tubular occluding agents optimized bonding of hydrophobic resins to dentin.

KEY WORDS: ethanol wet-bonding • hydrophobic resin • tubule occlusion • oxalate • pulpal pressure

This article has been cited by other articles:

				F.R. Tay, D.H. Pashley, R.R. Kapur, M.R.O. Carrilho, Y.B. Hur, L.V. Garrett, and K.C.Y. Tay Bonding BisGMA to Dentin a Proof of Concept for Hydrophobic Dentin Bonding J. Dent. Res., November 1, 2007; 86(11): 1034 - 1039. [Abstract] [Full Text] [PDF]