Article: Translucency and biaxial flexural strength of four ceramic core materials

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TitleTranslucency and biaxial flexural strength of four ceramic core materials
AuthorsChen, YM2
Smales, RJ3
Yip, KHK1
Sung, WJ2
KeywordsBiaxial flexural strength
Ceramic
Relative translucency
Issue Date2008
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental
CitationDental Materials, 2008, v. 24 n. 11, p. 1506-1511 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.dental.2008.03.010
AbstractObjectives: To assess the relative translucencies and flexural strengths of four dental restorative ceramic core materials. Methods: Eight disk specimens (14 mm in diameter × 0.5 ± 0.05 mm in thickness) were prepared for each group of four ceramic core materials (IPS Empress 2 dentin, VITA In-Ceram Alumina, VITA In-Ceram Zirconia, Cercon Base Zirconia), according to the manufacturers' instructions. A color meter was used to measure the relative translucencies of the specimens. The biaxial flexure test (ISO 6872) was then used to measure their flexural strengths. Data for relative translucency (0.0-1.0), fracture load (N) and biaxial flexural strength (MPa) were analyzed by one-way ANOVA, followed by Tukey's multiple comparison test for significant findings (α = 0.05). Results: For relative translucency: IPS Empress 2 (0.78 ± 0.03), VITA In-Ceram Alumina (0.94 ± 0.01), VITA In-Ceram Zirconia (1.00 ± 0.01), Cercon Base Zirconia (1.00 ± 0.01), P < 0.0001. For biaxial flexural strength: IPS Empress 2 (355.1 ± 25.7), VITA In-Ceram Alumina (514.0 ± 49.5), VITA In-Ceram Zirconia (592.4 ± 84.7), Cercon Base Zirconia (910.5 ± 95.3), P < 0.0001. Significance: IPS Empress 2 and VITA In-Ceram Alumina were significantly more translucent than the two opaque zirconia-containing core materials. IPS Empress 2 was significantly weaker, and Cercon Base Zirconia was significantly stronger, than the other two ceramic core materials. © 2008 Academy of Dental Materials.
ISSN0109-5641
2011 Impact Factor: 3.135
2011 SCImago Journal Rankings: 0.159
DOIhttp://dx.doi.org/10.1016/j.dental.2008.03.010
ISI Accession Number IDWOS:000260287300010
ReferencesReferences in Scopus
DC Field
Value
dc.contributor.authorChen, YM
dc.contributor.authorSmales, RJ
dc.contributor.authorYip, KHK
dc.contributor.authorSung, WJ
dc.date.accessioned2010-05-31T03:21:52Z
dc.date.available2010-05-31T03:21:52Z
dc.date.issued2008
dc.description.abstractObjectives: To assess the relative translucencies and flexural strengths of four dental restorative ceramic core materials. Methods: Eight disk specimens (14 mm in diameter × 0.5 ± 0.05 mm in thickness) were prepared for each group of four ceramic core materials (IPS Empress 2 dentin, VITA In-Ceram Alumina, VITA In-Ceram Zirconia, Cercon Base Zirconia), according to the manufacturers' instructions. A color meter was used to measure the relative translucencies of the specimens. The biaxial flexure test (ISO 6872) was then used to measure their flexural strengths. Data for relative translucency (0.0-1.0), fracture load (N) and biaxial flexural strength (MPa) were analyzed by one-way ANOVA, followed by Tukey's multiple comparison test for significant findings (α = 0.05). Results: For relative translucency: IPS Empress 2 (0.78 ± 0.03), VITA In-Ceram Alumina (0.94 ± 0.01), VITA In-Ceram Zirconia (1.00 ± 0.01), Cercon Base Zirconia (1.00 ± 0.01), P < 0.0001. For biaxial flexural strength: IPS Empress 2 (355.1 ± 25.7), VITA In-Ceram Alumina (514.0 ± 49.5), VITA In-Ceram Zirconia (592.4 ± 84.7), Cercon Base Zirconia (910.5 ± 95.3), P < 0.0001. Significance: IPS Empress 2 and VITA In-Ceram Alumina were significantly more translucent than the two opaque zirconia-containing core materials. IPS Empress 2 was significantly weaker, and Cercon Base Zirconia was significantly stronger, than the other two ceramic core materials. © 2008 Academy of Dental Materials.
dc.description.natureLink_to_subscribed_fulltext
dc.identifier.citationDental Materials, 2008, v. 24 n. 11, p. 1506-1511 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.dental.2008.03.010
dc.identifier.citeulike5686230
dc.identifier.doihttp://dx.doi.org/10.1016/j.dental.2008.03.010
dc.identifier.epage1511
dc.identifier.hkuros151085
dc.identifier.isiWOS:000260287300010
dc.identifier.issn0109-5641
2011 Impact Factor: 3.135
2011 SCImago Journal Rankings: 0.159
dc.identifier.issue11
dc.identifier.scopuseid_2-s2.0-52049101566
dc.identifier.spage1506
dc.identifier.urihttp://hdl.handle.net/10722/57984
dc.identifier.volume24
dc.languageeng
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental
dc.publisher.placeUnited States
dc.relation.ispartofDental Materials
dc.relation.referencesReferences in Scopus
dc.subjectBiaxial flexural strength
dc.subjectCeramic
dc.subjectRelative translucency
dc.titleTranslucency and biaxial flexural strength of four ceramic core materials
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Nanjing Medical University
  3. University of Adelaide