Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures
Objetive: This research aimed to verify the performance of thermally activated acrylic resin (TAAR) combined with a mix of glass and aramid fibers and/or composite resin of indirect use by a tree point bending test. Material and Methods: Ten samples, with 65 x 10 x 2.5 mm, were prepared for each gr...
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| Format: | Article |
| Language: | English |
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Universidade Estadual Paulista
2018-04-01
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| Series: | Brazilian Dental Science |
| Online Access: | https://ojs.ict.unesp.br/index.php/cob/article/view/1539 |
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| author | Jean Soares Miranda Caroline Cotes Marinho Vanessa Cruz Macedo Aline Serrado de Pinho Barcellos Thaís Cachuté Paradella Tarcísio José Arruda Paes Jr Estevão Tomomitsu Kimpara |
| author_facet | Jean Soares Miranda Caroline Cotes Marinho Vanessa Cruz Macedo Aline Serrado de Pinho Barcellos Thaís Cachuté Paradella Tarcísio José Arruda Paes Jr Estevão Tomomitsu Kimpara |
| author_sort | Jean Soares Miranda |
| collection | DOAJ |
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Objetive: This research aimed to verify the performance of thermally activated acrylic resin (TAAR) combined with a mix of glass and aramid fibers and/or composite resin of indirect use by a tree point bending test. Material and Methods: Ten samples, with 65 x 10 x 2.5 mm, were prepared for each group (n = 10): CO, control of only TAAR; CR, in which an 60 mm indirect composite resin was polymerized together with the acrylic resin during the thermo-polymerization cycle; SS, in which ceramic glass mixed with aramid fibers cut 60 mm in length were incorporated into the samples; and SC, in which the same fibers were incorporated with addiction of the indirect composite resin. A three-point flexural strength test was performed with a universal testing machine with a load of 50KgF at a speed of 5 mm/min in the center of the samples supported by a suitable device. The reinforced face was placed to the tensile side. The statistical one-way ANOVA and Tukey tests were made with a significance level of 95%. Results: The mean value for the CO was 60,27 ± 24,18 MPa, for CR it was 38,39±12,75 MPa, for SS it was 79,97±12,75 Mpa and for CS it was 32,40±9,05 MPa. Conclusion: The use of glass and aramid fibers at the base of a TAAR increased the three-point flexural strength, however when indirect composite resin was incorporated, a significant drop of this mechanical property was observed.
Keywords
Acrylic resin; Complete denture; Composite resin.
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| format | Article |
| id | doaj-art-8fefb3abba27494895f8e1f1d8d4eeeb |
| institution | Kabale University |
| issn | 2178-6011 |
| language | English |
| publishDate | 2018-04-01 |
| publisher | Universidade Estadual Paulista |
| record_format | Article |
| series | Brazilian Dental Science |
| spelling | doaj-art-8fefb3abba27494895f8e1f1d8d4eeeb2025-08-22T19:02:33ZengUniversidade Estadual PaulistaBrazilian Dental Science2178-60112018-04-0121210.14295/bds.2018.v21i2.1539Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete denturesJean Soares Miranda0Caroline Cotes Marinho1Vanessa Cruz Macedo2Aline Serrado de Pinho Barcellos3Thaís Cachuté Paradella4Tarcísio José Arruda Paes Jr5Estevão Tomomitsu Kimpara6São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.Universidade Brasil – São Paulo – SP – Brazil.São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil.São Paulo State University (Unesp) – Institute of Science and Technology – São José dos Campos – Department of Dental Materials and Prosthodontics – SP – Brazil. Objetive: This research aimed to verify the performance of thermally activated acrylic resin (TAAR) combined with a mix of glass and aramid fibers and/or composite resin of indirect use by a tree point bending test. Material and Methods: Ten samples, with 65 x 10 x 2.5 mm, were prepared for each group (n = 10): CO, control of only TAAR; CR, in which an 60 mm indirect composite resin was polymerized together with the acrylic resin during the thermo-polymerization cycle; SS, in which ceramic glass mixed with aramid fibers cut 60 mm in length were incorporated into the samples; and SC, in which the same fibers were incorporated with addiction of the indirect composite resin. A three-point flexural strength test was performed with a universal testing machine with a load of 50KgF at a speed of 5 mm/min in the center of the samples supported by a suitable device. The reinforced face was placed to the tensile side. The statistical one-way ANOVA and Tukey tests were made with a significance level of 95%. Results: The mean value for the CO was 60,27 ± 24,18 MPa, for CR it was 38,39±12,75 MPa, for SS it was 79,97±12,75 Mpa and for CS it was 32,40±9,05 MPa. Conclusion: The use of glass and aramid fibers at the base of a TAAR increased the three-point flexural strength, however when indirect composite resin was incorporated, a significant drop of this mechanical property was observed. Keywords Acrylic resin; Complete denture; Composite resin. https://ojs.ict.unesp.br/index.php/cob/article/view/1539 |
| spellingShingle | Jean Soares Miranda Caroline Cotes Marinho Vanessa Cruz Macedo Aline Serrado de Pinho Barcellos Thaís Cachuté Paradella Tarcísio José Arruda Paes Jr Estevão Tomomitsu Kimpara Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures Brazilian Dental Science |
| title | Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| title_full | Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| title_fullStr | Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| title_full_unstemmed | Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| title_short | Influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| title_sort | influence of indirect reinforcements on the flexural strength of a thermally activated acrylic resin used for complete dentures |
| url | https://ojs.ict.unesp.br/index.php/cob/article/view/1539 |
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