| Effect of various surface treatment methods on the bond strength of the heat-pressed ceramic samples. | |
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MedLine Citation:
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PMID: 15265216 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This in vitro study was conducted to evaluate the interaction between the shear bond strength and the surface treatment method for a commercial dental ceramic. Ninety bonded ceramic units were manufactured for this study. Each unit was made by luting two cylinder-shaped ceramic samples to each other with a resin-composite luting agent. The units were then divided into nine groups, containing 10 units in each group. Samples from each group were treated with one of the following: etching with 4.9% hydrofluoric acid for 10, 20 and 40 s, 9.5% hydrofluoric acid for 10, 20 and 40 s, 40% orthophosphoric acid for 40 s, air abrasion with alumina in 50-microm particles, and grinding with a high-speed diamond bur. The treated samples were then silanated and luted with a resin-composite luting agent. The luted units were then loaded to failure. Two samples from each group were neither silanated nor luted after the surface treatment procedure, and morphological changes obtained by various surface treatment regimens were investigated by scanning electron microscopy. A statistically significant difference was observed among the mean shear bond strengths of the groups prepared with different surface treatment techniques (P = 0.00). Hydrofluoric acid appeared to be the most suitable chemical medium to produce a reliable ceramic bond. Etching time and concentration of the acidic medium were also observed as important prognostic variates. Orthophosphoric acid treatment was observed to be the least effective surface treatment method on the heat-pressed ceramic samples. Physical applications such as bur grinding and air blasting maintained stronger bonds than the orthophosphoric acid, while producing weaker bonds than surfaces treated with hydrofluoric acid in all concentrations and etching periods. The effect of the silane priming agent was not considered in this study. |
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Authors:
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A Saraçoğlu; C Cura; H S Cötert |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of oral rehabilitation Volume: 31 ISSN: 0305-182X ISO Abbreviation: J Oral Rehabil Publication Date: 2004 Aug |
Date Detail:
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Created Date: 2004-07-21 Completed Date: 2004-11-08 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0433604 Medline TA: J Oral Rehabil Country: England |
Other Details:
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Languages: eng Pagination: 790-7 Citation Subset: D; IM |
Copyright Information:
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Copyright 2004 Blackwell Publishing Ltd. |
Affiliation:
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Department of Prosthodontics, Faculty of Dentistry, Ege University, Izmir, Turkey. saracoglu@dent.ege.edu.tr, ahmetsaracoglu@ttnet.net.tr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Dental Bonding* Dental Porcelain* Dental Veneers* Hot Temperature Stress, Mechanical |
| Chemical | |
Reg. No./Substance:
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12001-21-7/Dental Porcelain |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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