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Real-time measurement of dentinal fluid flow during amalgam and composite restoration

Cited 21 time in Web of Science Cited 25 time in Scopus
Authors
Kim, Sun-Young; Ferracane, Jack; Kim, Hae-Young; Lee, In-Bog
Issue Date
2010-04
Publisher
ELSEVIER SCI LTD
Citation
JOURNAL OF DENTISTRY; Vol.38, No.4, pp.343-351
Keywords
Dentinal fluid flowCompositeEtch-and-rinseAmalgamPermeabilitySelf-etch
Abstract
Objectives: This study examined changes in the dentinal fluid flow (DFF) during restorative procedures and compared permeability after restoration among restorative materials and adhesives. Methods: A class 1 cavity was prepared and restored with either amalgam (Bestaloy), or composite (Z-250) with one of two etch-and-rinse adhesives (Scotchbond MultiPurpose: MP and Single Bond 2: SB) or one of two self-etch adhesives (Clearfil SE Bond: CE and Easy Bond: EB) on an extracted human third molar which was connected to a sub-nanoliter fluid flow measuring device (NFMD) under 20 cm water pressure. DFF was measured from the intact tooth state through the restoration procedures to 30 mm after restoration, and re-measured at 3 and 7 days post-restoration. Results: Inward flow during cavity preparation was followed by outward flow after preparation. In amalgam restoration, the outward flow changed into an inward flow during amalgam filling, which was followed by a slight outward flow after finishing. In composite restoration, MP and SB showed an inward flow and outward flow for the rinsing and drying steps, respectively. Application of a hydrophobic bonding resin in the MP and CE systems caused a decrease in the flow rate. Air-drying of solvent for the CE and EB systems caused a sudden outward flow, whereas light-curing of the adhesive and composite caused an abrupt inward flow. Conclusions: Each restorative step clearly changed the direction and the rate of the DFF during restoration, which could be well identified with NFMD. (C) 2010 Elsevier Ltd. All rights reserved.
ISSN
0300-5712
Language
English
URI
http://hdl.handle.net/10371/80510
DOI
https://doi.org/10.1016/j.jdent.2009.12.008
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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