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Journal of Zhejiang University SCIENCE B 2013 Vol.14 No.11 P.1013-1024

http://doi.org/10.1631/jzus.B1300034


Improvement of enamel bond strengths for conventional and resin-modified glass ionomers: acid-etching vs. conditioning


Author(s):  Ling Zhang, Tian Tang, Zhen-liang Zhang, Bing Liang, Xiao-miao Wang, Bai-ping Fu

Affiliation(s):  Hospital of Stomatology Affiliated to Zhejiang University School of Medicine, Hangzhou 310006, China

Corresponding email(s):   fbp@zju.edu.cn

Key Words:  Glass ionomer cements, Surface treatments, Bovine enamels, Scanning electron microscopy (SEM), Micro-tensile bond strengths


Ling Zhang, Tian Tang, Zhen-liang Zhang, Bing Liang, Xiao-miao Wang, Bai-ping Fu. Improvement of enamel bond strengths for conventional and resin-modified glass ionomers: acid-etching vs. conditioning[J]. Journal of Zhejiang University Science B, 2013, 14(11): 1013-1024.

@article{title="Improvement of enamel bond strengths for conventional and resin-modified glass ionomers: acid-etching vs. conditioning",
author="Ling Zhang, Tian Tang, Zhen-liang Zhang, Bing Liang, Xiao-miao Wang, Bai-ping Fu",
journal="Journal of Zhejiang University Science B",
volume="14",
number="11",
pages="1013-1024",
year="2013",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1300034"
}

%0 Journal Article
%T Improvement of enamel bond strengths for conventional and resin-modified glass ionomers: acid-etching vs. conditioning
%A Ling Zhang
%A Tian Tang
%A Zhen-liang Zhang
%A Bing Liang
%A Xiao-miao Wang
%A Bai-ping Fu
%J Journal of Zhejiang University SCIENCE B
%V 14
%N 11
%P 1013-1024
%@ 1673-1581
%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1300034

TY - JOUR
T1 - Improvement of enamel bond strengths for conventional and resin-modified glass ionomers: acid-etching vs. conditioning
A1 - Ling Zhang
A1 - Tian Tang
A1 - Zhen-liang Zhang
A1 - Bing Liang
A1 - Xiao-miao Wang
A1 - Bai-ping Fu
J0 - Journal of Zhejiang University Science B
VL - 14
IS - 11
SP - 1013
EP - 1024
%@ 1673-1581
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1300034


Abstract: 
Objective: This study deals with the effect of phosphoric acid etching and conditioning on enamel micro-tensile bond strengths (μTBSs) of conventional and resin-modified glass ionomer cements (GICs/RMGICs). Methods: Forty-eight bovine incisors were prepared into rectangular blocks. Highly-polished labial enamel surfaces were either acid-etched, conditioned with liquids of cements, or not further treated (control). Subsequently, two matching pre-treated enamel surfaces were cemented together with one of four cements [two GICs: Fuji I (GC), Ketac Cem Easymix (3M ESPE); two RMGICs: Fuji Plus (GC), RelyX Luting (3M ESPE)] in preparation for μTBS tests. Pre-treated enamel surfaces and cement-enamel interfaces were analyzed by scanning electron microscopy (SEM). Results: Phosphoric acid etching significantly increased the enamel μTBS of GICs/RMGICs. Conditioning with the liquids of the cements produced significantly weaker or equivalent enamel μTBS compared to the control. Regardless of etching, RMGICs yielded stronger enamel μTBS than GICs. A visible hybrid layer was found at certain enamel-cement interfaces of the etched enamels. Conclusions: Phosphoric acid etching significantly increased the enamel μTBSs of GICs/RMGICs. Phosphoric acid etching should be recommended to etch the enamel margins before the cementation of the prostheses such as inlays and onlays, using GICs/RMGICs to improve the bond strengths. RMGICs provided stronger enamel bond strength than GICs and conditioning did not increase enamel bond strength.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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