Effect of Ceramic Thickness and Shade on Mechanical Properties of a Resin Luting Agent
dc.contributor.author | Passos, Sheila Pestana | |
dc.contributor.author | Kimpara, Estevao Tomomitsu [UNESP] | |
dc.contributor.author | Bottino, Marco Antonio [UNESP] | |
dc.contributor.author | Rizkalla, Amin S. | |
dc.contributor.author | Santos, Gildo Coelho | |
dc.contributor.institution | Univ Alberta | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.contributor.institution | Univ Western Ontario | |
dc.date.accessioned | 2015-03-18T15:55:17Z | |
dc.date.available | 2015-03-18T15:55:17Z | |
dc.date.issued | 2014-08-01 | |
dc.description.abstract | Purpose: This study aimed to investigate the influence of ceramic thickness and shade on the Knoop hardness and dynamic elastic modulus of a dual-cured resin cement.Materials and Methods: Six ceramic shades (Bleaching, A1, A2, A3, A3.5, B3) and two ceramic thicknesses (1 mm, 3 mm) were evaluated. Disk specimens (diameter: 7 mm; thickness: 2 mm) of the resin cement were light cured under a ceramic block. Light-cured specimens without the ceramic block at distances of 1 and 3mm were also produced. The Knoop hardness number (KHN), density, and dynamic Young's moduli were determined. Statistical analysis was conducted using ANOVA and a Tukey B rank order test (p = 0.05).Results: The bleaching 1-mm-thick group exhibited significantly higher dynamic Young's modulus. Lower dynamic Young's moduli were observed for the 3-mm-thick ceramic groups compared to bleaching 3-mm-thick group, and no difference was found among the other 3-mm groups. For the KHN, when A3.5 3-mm-thick was used, the KHN was significantly lower than bleaching and A1 1-mm-thick ceramic; however, no difference was exhibited between the thicknesses of the same shade.Conclusions: The dual-cured resin cement studied irradiated through the 1-mm-thick ceramic with the lightest shade (bleaching ceramic) exhibited a better elastic modulus, and there was no effect in KHN of the resin cement when light cured under different ceramic shades and thicknesses (1 and 3 mm), except when the A3.5 3-mm-thick ceramic was used.Clinical Significance: Variolink II irradiated through ceramic with the lowest chroma exhibited the highest elastic modulus; therefore, the light activation method might not be the same for all clinical situations. | en |
dc.description.affiliation | Univ Alberta, Sch Dent, Edmonton, AB, Canada | |
dc.description.affiliation | Sao Paulo State Univ, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, Brazil | |
dc.description.affiliation | Univ Western Ontario, Schulich Sch Med & Dent, Dept Chem & Biochem Engn, London, ON N6A 5C1, Canada | |
dc.description.affiliation | Univ Western Ontario, Schulich Sch Med & Dent, Dept Restorat Dent, London, ON N6A 5C1, Canada | |
dc.description.affiliationUnesp | Sao Paulo State Univ, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, Brazil | |
dc.format.extent | 462-466 | |
dc.identifier | http://dx.doi.org/10.1111/jopr.12140 | |
dc.identifier.citation | Journal Of Prosthodontics-implant Esthetic And Reconstructive Dentistry. Hoboken: Wiley-blackwell, v. 23, n. 6, p. 462-466, 2014. | |
dc.identifier.doi | 10.1111/jopr.12140 | |
dc.identifier.issn | 1059-941X | |
dc.identifier.lattes | 0967916388665754 | |
dc.identifier.lattes | 9234456003563666 | |
dc.identifier.uri | http://hdl.handle.net/11449/117137 | |
dc.identifier.wos | WOS:000340560800005 | |
dc.language.iso | eng | |
dc.publisher | Wiley-Blackwell | |
dc.relation.ispartof | Journal Of Prosthodontics-implant Esthetic And Reconstructive Dentistry | |
dc.relation.ispartofjcr | 1.745 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Dual-cured resin luting agent | en |
dc.subject | dynamic elastic modulus | en |
dc.subject | microhardness | en |
dc.title | Effect of Ceramic Thickness and Shade on Mechanical Properties of a Resin Luting Agent | en |
dc.type | Artigo | |
dcterms.license | http://olabout.wiley.com/WileyCDA/Section/id-406071.html | |
dcterms.rightsHolder | Wiley-Blackwell | |
unesp.author.lattes | 0967916388665754 | |
unesp.author.lattes | 9234456003563666 | |
unesp.campus | Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos | pt |
unesp.department | Materiais Odontológicos e Prótese - ICT | pt |