Document Detail

Dentin diffusion of HEMA released from etch-and-rinse and self-etch bonding systems.
MedLine Citation:
PMID:  18028061     Owner:  NLM     Status:  MEDLINE    
The aim of this in vitro study was to determine the diffusion of 2-hydroxyethyl methacrylate (HEMA) released from different bonding systems (BS) through dentin. Occlusal cavities with a remaining dentin thickness (RDT) of 0.5 mm (n=90) and 0.25 mm (n=80), respectively, were prepared in dentin discs of non-carious human molars. Artificial pulp chambers were attached to the pulpal side of each dentin disc. Bonding systems were applied with (Clearfil SE Bond, OptiBond FL, OptiBond Solo Plus) or without (AdheSE, Adper Prompt L-Pop, Clearfil SE Bond, OptiBond FL, OptiBond Solo Plus Self Etch, Xeno III) prior phosphoric acid etching. HEMA was detected by gas chromatography/mass spectrometry (n=10 per BS and RDT). The highest mean HEMA concentration was found in the 0.25 mm RDT group treated with OptiBond FL (13.3 microg) and the lowest mean HEMA concentration was detected in the 0.5 mm RDT group treated with AdheSE (0.5 microg). At 0.25 mm RDT the quantities of HEMA recovered in the artificial pulp chambers were significantly higher than at 0.5 mm RDT, except for Clearfil SE Bond. Etching with phosphoric acid increased the detected HEMA quantities compared with self-etch BS. In deep cavity preparations, etching with phosphoric acid should be avoided in favor of the use of self-etch BS.
Andreas Rathke; Andreas Alt; Nadin Gambin; Bernd Haller
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of oral sciences     Volume:  115     ISSN:  0909-8836     ISO Abbreviation:  Eur. J. Oral Sci.     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-21     Completed Date:  2008-02-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9504563     Medline TA:  Eur J Oral Sci     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  510-6     Citation Subset:  D; IM    
Department of Operative Dentistry and Periodontology, University of Ulm, Ulm, Germany.
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MeSH Terms
Dental Bonding / methods
Dental Etching / methods*
Dental Materials / adverse effects
Dentin / drug effects*,  ultrastructure
Dentin-Bonding Agents / chemistry,  therapeutic use*
Epidemiologic Methods
Methacrylates / analysis*
Phosphoric Acids / adverse effects
Reg. No./Substance:
0/Dental Materials; 0/Dentin-Bonding Agents; 0/Methacrylates; 0/Phosphoric Acids; 7664-38-2/phosphoric acid; 868-77-9/hydroxyethyl methacrylate

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