Document Detail

Effect of acid etching on dentin wettability and roughness: self-etching primers versus phosphoric acid.
MedLine Citation:
PMID:  17563100     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare the effect of self-etching primers and phosphoric acid on the wettability and roughness of smear layer-covered and smear layer-free dentin. MATERIALS AND METHOD: Three self-etching primers (Clearfil SE Bond, AdheSE, and Xeno III) and 10% (w/w) phosphoric acid (H(3)PO(4)) solution were evaluated. The substrates were midcoronal dentin with and without smear layer. For each liquid, pH, density, and surface tension were determined. Water wettability of dentin and roughness were measured before and after each etching. Wettability of self-etching primers and phosphoric acid was measured on untreated dentin. RESULTS: Water wettability increased after acid conditioning similarly for all the liquids used. On smear layer-covered surfaces, self-etching primers achieved a comparable wetting but with greater contact angles than phosphoric acid. However, on smear layer-free surfaces, the increasing sequence of contact angle was Clearfil SE < AdheSE < Xeno III < Phosphoric acid. The treatment with phosphoric acid (lowest pH) produced the highest roughness increase on both dentin substrates. The roughening effect of the self-etching adhesives was more evident for AdheSE and Xeno III. CONCLUSIONS: Self-etching primers and phosphoric acid promote similar water wettability increase. However, self-etching primers provided lower dentin roughness increase than pretreatment with phosphoric acid. The presence of smear layer did not affect the results of self-etching and phosphoric acid treatments.
Jose A Aguilar-Mendoza; Juan I Rosales-Leal; Miguel A Rodríguez-Valverde; Miguel A Cabrerizo-Vílchez
Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of biomedical materials research. Part B, Applied biomaterials     Volume:  84     ISSN:  1552-4973     ISO Abbreviation:  J. Biomed. Mater. Res. Part B Appl. Biomater.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2007-12-11     Completed Date:  2008-02-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101234238     Medline TA:  J Biomed Mater Res B Appl Biomater     Country:  United States    
Other Details:
Languages:  eng     Pagination:  277-85     Citation Subset:  IM    
Department of Applied Physics, University of Granada, Granada, Spain.
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MeSH Terms
Acid Etching, Dental*
Dentin / chemistry*
Hydrogen-Ion Concentration
Microscopy, Confocal
Molar, Third
Phosphoric Acids / pharmacology*
Surface Properties
Reg. No./Substance:
0/Phosphoric Acids; 7664-38-2/phosphoric acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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