http://www.cnr.it/ontology/cnr/individuo/prodotto/ID27705

Implication of ethanol wet-bonding in hybrid layer remineralization. (Articolo in rivista)

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Implication of ethanol wet-bonding in hybrid layer remineralization. (Articolo in rivista) (literal)

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Kim J, Gu L, Breschi L, Tjäderhane L, Choi KK, Pashley DH, Tay FR (2010)
Implication of ethanol wet-bonding in hybrid layer remineralization.
in Journal of dental research; Sage Publications Inc., Thousand Oaks (Stati Uniti d'America)
(literal)

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Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea; Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Institute of Stomatological Research, Sun Yat-sen University, Guangzhou, China; Department of Biomedicine, Unit of Dental Sciences and Biomaterials, University of Trieste, Italy, IGM-CNR, Unit of Bologna c/o IOR, Bologna, Italy; Institute of Dentistry, University of Oulu and Oulu University Hospital (OUH), Oulu, Finland; Department of Oral Biology, School of Dentistry, Medical College of Georgia, Augusta, GA 30912-1129, USA; Department of Endodontics, School of Dentistry, Medical College of Georgia, Augusta, GA 30912-1129, USA (literal)

Titolo

Abstract

During mineralization, unbound water within the collagen matrix is replaced by apatite. This study tested the null hypothesis that there is no difference in the status of in vitro biomimetic remineralization of hybrid layers, regardless of their moisture contents. Acid-etched dentin was bonded with One-Step with ethanol-wet-bonding, water-wet-bonding, and water-overwet-bonding protocols. Composite-dentin slabs were subjected to remineralization for 1-4 months in a medium containing dual biomimetic analogs, with set Portland cement as the calcium source and characterized by transmission electron microscopy. Remineralization was either non-existent or restricted to the intrafibrillar mode in ethanol-wet-bonded specimens. Extensive intrafibrillar and interfibrillar remineralization was observed in water-wet-bonded specimens. Water-overwet specimens demonstrated partial remineralization of hybrid layers and precipitation of mineralized plates within water channels. The use of ethanol-wet-bonding substantiates that biomimetic remineralization is a progressive dehydration process that replaces residual water in hybrid layers with apatite crystallites. (literal)

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