Detalhes bibliográficos
Ano de defesa: |
2010 |
Autor(a) principal: |
Divardin, Sindianara de Fátima
 |
Orientador(a): |
Coelho, Ulisses
 |
Banca de defesa: |
Orellana, Bruno
,
Gomes, Osnara Maria Mongruel
 |
Tipo de documento: |
Dissertação
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Tipo de acesso: |
Acesso aberto |
Idioma: |
por |
Instituição de defesa: |
UNIVERSIDADE ESTADUAL DE PONTA GROSSA
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Programa de Pós-Graduação: |
Programa de Pós-Graduação em Odontologia
|
Departamento: |
Clinica Integrada, Dentística Restauradora e Periodontia
|
País: |
BR
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Palavras-chave em Português: |
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Palavras-chave em Inglês: |
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Área do conhecimento CNPq: |
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Link de acesso: |
http://tede2.uepg.br/jspui/handle/prefix/1775
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Resumo: |
This in vitro study was conducted to evaluate the Vickers Hardness (HV), the shear bond strength (RA) and adhesive remnant index of orthodontic resins. A total of 60 premolars extracted for orthodontic indications were divided into tree groups, with 20 specimens (CP) for each group: COI – Concise Orthodontic (CO), TB – Transbond XT (TB), AQ – Aqualite (AQ). All specimens were stored in distilled water at room temperature for 24 hours and were subjected to testing after mechanical shearing with occluso-gingival direction, in a universal testing machine SHIMADZU, with a crosshead speed of 0,5 mm/min. The results were evaluated by ANOVA, and showed RA mean 18.21 ± 6.21 MPa for GI (CO), 25.02 ± 9.29 MPa to the GII (TB) and 14.31± 8.25 MPa for GIII (AQ). The analysis of variance determined statistical difference between groups p<0,05 and statistical difference between groups p<0,05 AQ/TB, CO/TB and no statistically significant difference between AQ/CO. The results for HV test were performed by the D’Agostino Pearson and ANOVA with criterion or one-way ANOVA and Tuckey post-test results with p<0,05. For evaluation of IAR test was used nonparametric Kruskal-Wallis followed by Dunn’s test results with p<0,05.The study showed statistically significant differences between groups of orthodontic resins investigated. |