Document Detail


Effect of hybridization on bond strength and adhesive interface after acid-base challenge using 4-META/MMA-TBB resin.
MedLine Citation:
PMID:  19496398     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purposes of this study were twofold, namely to evaluate: (1) the effect of hybridization on microtensile bond strength (microTBS) to dentin, and (2) the ultrastructure of the dentin-adhesive interface with 4-META/MMA-TBB resin after acid-base challenge. Dentin surfaces, which received no treatment (NT), 65% phosphoric acid (PA), or 10% citric acid-3% ferric chloride (10-3), were bonded with a 4-META/MMA-TBB resin. To evaluate dentin bond strength, microTBS test was performed at a crosshead speed of 1 mm/min. For ultrastructural evaluation of the adhesive interfaces, SEM was used to examine the interfaces of the bonded specimens after acid-base challenge. The microTBS of NT was not determined, while that of 10-3 was significantly higher than that of PA (p < 0.05). With PA and 10-3, the hybrid layer was clearly observed, but no so for the acid-base resistant zone. Wall lesion was found in NT only. In conclusion, hybridization is vital to improving microTBS to dentin and enhancing resistance at the adhesive interface against acid-base challenge.
Authors:
Tomohiro Takagaki; Toru Nikaido; Satoko Tsuchiya; Masaomi Ikeda; Richard M Foxton; Junji Tagami
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Dental materials journal     Volume:  28     ISSN:  0287-4547     ISO Abbreviation:  Dent Mater J     Publication Date:  2009 Mar 
Date Detail:
Created Date:  2009-06-05     Completed Date:  2009-08-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8309299     Medline TA:  Dent Mater J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  185-93     Citation Subset:  D    
Affiliation:
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan gakky1978@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Adhesiveness
Boron Compounds / chemistry*
Caustics / chemistry
Chelating Agents / chemistry
Citric Acid / chemistry
Dental Bonding*
Dental Materials / chemistry
Dentin / ultrastructure*
Ferric Compounds / chemistry
Humans
Materials Testing
Methacrylates / chemistry*
Methylmethacrylates / chemistry*
Microscopy, Electron, Scanning
Phosphoric Acids / chemistry
Resin Cements / chemistry*
Stress, Mechanical
Surface Properties
Temperature
Tensile Strength
Time Factors
Water / chemistry
Chemical
Reg. No./Substance:
0/Boron Compounds; 0/Caustics; 0/Chelating Agents; 0/Dental Materials; 0/Ferric Compounds; 0/Methacrylates; 0/Methylmethacrylates; 0/Phosphoric Acids; 0/Resin Cements; 7664-38-2/phosphoric acid; 77-92-9/Citric Acid; 7705-08-0/ferric chloride; 7732-18-5/Water; 95508-14-8/Super-bond

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


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