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DC Field | Value | Language |
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dc.contributor.author | Oliveira, Karla Mychellyne Costa | pt_BR |
dc.contributor.author | Consani, Simonides | pt_BR |
dc.contributor.author | Gonçalves, Luciano Souza | pt_BR |
dc.contributor.author | Brandt, William Cunha | pt_BR |
dc.contributor.author | Ccahuana-Vásquez, Renzo Alberto | pt_BR |
dc.date.accessioned | 2019-09-12T16:26:01Z | - |
dc.date.available | 2019-09-12T16:26:01Z | - |
dc.date.issued | 2012 | - |
dc.citation.volume | 26 | pt_BR |
dc.citation.issue | 3 | pt_BR |
dc.citation.spage | 202 | - |
dc.citation.epage | 208 | - |
dc.identifier.doi | 10.1590/S1806-83242012000300004 | pt_BR |
dc.identifier.issn | 1807-3107 | - |
dc.identifier.uri | http://repositorio.unitau.br/jspui/handle/20.500.11874/1823 | - |
dc.description.abstract | We compared polymerization stress in two commercial composites and three experimental composites made using camphorquinone (CQ) and/or phenylpropanedione (PPD) as photoinitiators. The internal surfaces of photoelastic resin discs with cylindrical cavities were roughened and treated with adhesive. Composites were divided into five groups: two commercial composites (Filtek Silorane and Filtek Z250) and three experimental composites with CQ/amine, CQ/PPD/amine, and PPD/amine. Composites were photopolymerized inside cavities, and subjected to photoelastic analysis immediately and at 24 hours and 7 days later using a plane polariscope. Stress created by Silorane (3.08 ± 0.09 MPa) was similar to that of Z250 (3.19 ± 0.13 MPa) immediately after photopolymerization (p > 0.05). After 24 hours and 7 days, Z250 (3.53 ± 0.15 and 3.69 ± 0.10 MPa, respectively) showed higher stress than Silorane (3.19 ± 0.10 and 3.16 ± 0.10 MPa, respectively). Qualitative analysis immediately after photopolymerization showed composite/CQ promoted higher stress than PPD, but stress levels at other evaluated times were statistically similar, varying between 3.45 ± 0.11 MPa and 3.92 ± 0.13 MPa. At 24 hours and 7 days, Silorane created the lowest stress. All photoinitiators created comparable tensions during polymerization. | en |
dc.description.provenance | Made available in DSpace on 2019-09-12T16:26:01Z (GMT). No. of bitstreams: 0 Previous issue date: 2012 | en |
dc.language | Inglês | pt_BR |
dc.publisher | Sociedade Brasileira de Pesquisa Odontológica - SBPqO | - |
dc.publisher.country | Brasil | pt_BR |
dc.relation.ispartof | Brazilian Oral Research | - |
dc.rights | Acesso Aberto | pt_BR |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0 | * |
dc.source | Scielo | pt_BR |
dc.subject.other | Composite Resins | en |
dc.subject.other | Polymerization | en |
dc.subject.other | Photoinitiators, Dental | en |
dc.subject.other | Dental Stress Analysis | en |
dc.title | Photoelastic evaluation of the effect of composite formulation on polymerization shrinkage stress | en |
dc.type | Artigo de Periódico | pt_BR |
dc.contributor.orcid | Gonçalves, Luciano S https://orcid.org/0000-0003-0397-2895 | pt_BR |
dc.contributor.orcid | Ccahuana Vasquez, Renzo Alberto https://orcid.org/0000-0003-4176-7331 | pt_BR |
dc.contributor.researcherid | Gonçalves, Luciano S/F-5081-2013 | pt_BR |
dc.description.affiliation | [Gonçalves, Luciano Souza] Universidade de Uberaba, Brazil | - |
dc.description.affiliation | Brandt, William Cunha] Universidade de Taubaté, Brazil | - |
dc.description.affiliation | Oliveira, Karla Mychellyne Costa; Consani, Simonides] Universidade Estadual de Campinas, Brazil | - |
dc.description.affiliation | Ccahuana-Vásquez, Renzo Alberto] University of Texas, United States | - |
dc.subject.researcharea | Dentistry, Oral Surgery & Medicine | en |
dc.subject.scieloarea | Dentistry, Oral Surgery & Medicine | en |
dc.identifier.scielo | SCIELO:S1806-83242012000300004 | - |
Appears in Collections: | Artigos de Periódicos |
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