Apr, 2012
Self-assembled Nano-layering at the Adhesive Interface
JOURNAL OF DENTAL RESEARCH
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- Volume
- 91
- Number
- 4
- First page
- 376
- Last page
- 381
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1177/0022034512437375
- Publisher
- SAGE PUBLICATIONS INC
According to the 'Adhesion-Decalcification' concept, specific functional monomers within dental adhesives can ionically interact with hydroxyapatite (HAp). Such ionic bonding has been demonstrated for 10-methacryloyloxydecyl dihydrogen phosphate (MDP) to manifest in the form of self-assembled 'nano-layering'. However, it remained to be explored if such nano-layering also occurs on tooth tissue when commercial MDP-containing adhesives (Clearfil SE Bond, Kuraray; Scotchbond Universal, 3M ESPE) were applied following common clinical application protocols. We therefore characterized adhesive-dentin interfaces chemically, using x-ray diffraction (XRD) and energy-dispersive x-ray spectroscopy (EDS), and ultrastructurally, using (scanning) transmission electron microscopy (TEM/STEM). Both adhesives revealed nano-layering at the adhesive interface, not only within the hybrid layer but also, particularly for Clearfil SE Bond (Kuraray), extending into the adhesive layer. Since such self-assembled nano-layering of two 10-MDP molecules, joined by stable MDP-Ca salt formation, must make the adhesive interface more resistant to biodegradation, it may well explain the documented favorable clinical longevity of bonds produced by 10-MDP-based adhesives.
- Link information
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- DOI
- https://doi.org/10.1177/0022034512437375
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/22302145
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000301874200008&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84859013612&origin=inward
- ID information
-
- DOI : 10.1177/0022034512437375
- ISSN : 0022-0345
- Pubmed ID : 22302145
- SCOPUS ID : 84859013612
- Web of Science ID : WOS:000301874200008