The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin
The aim of this study was to evaluate the flexural strength of acrylic resin bars by varying the types of resin polymerization and reinforcement methods. Fourteen groups (N=10) were created by the interaction of factors in study: type of resin (self-cured (SC) or heat-cured (HC)) and reinforcement m...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2015/919142 |
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| author | Rodrigo Borges Fonseca Amanda Vessoni Barbosa Kasuya Isabella Negro Favarão Lucas Zago Naves Márcio Grama Hoeppner |
| author_facet | Rodrigo Borges Fonseca Amanda Vessoni Barbosa Kasuya Isabella Negro Favarão Lucas Zago Naves Márcio Grama Hoeppner |
| author_sort | Rodrigo Borges Fonseca |
| collection | DOAJ |
| description | The aim of this study was to evaluate the flexural strength of acrylic resin bars by varying the types of resin polymerization and reinforcement methods. Fourteen groups (N=10) were created by the interaction of factors in study: type of resin (self-cured (SC) or heat-cured (HC)) and reinforcement method (industrialized glass fiber (Ind), unidirectional glass fiber (Uni), short glass fiber (Short), unidirectional and short glass fiber (Uni-Short), thermoplastic resin fiber (Tpl), and steel wire (SW)). Reinforced bars (25×2×2 mm) were tested in flexural strength (0.5 mm/min) and examined by scanning electron microscopy (SEM). Data (MPa) were submitted to factorial analysis, ANOVA, and Tukey and T-student tests (a=5%) showing significant interaction (P=0.008), for SC: Uni (241.71±67.77)a, Uni-Short (221.05±71.97)a, Ind (215.21±46.59)ab, SW (190.51±31.49)abc, Short (156.31±28.76)bcd, Tpl (132.51±20.21)cd, Control SC (101.47±19.79)d and for HC: Ind (268.93±105.65)a, Uni (215.14±67.60)ab, Short (198.44±95.27)abc, Uni-Short (189.56±92.27)abc, Tpl (161.32±62.51)cd, SW (106.69±28.70)cd, and Control HC (93.39±39.61)d. SEM analysis showed better fiber-resin interaction for HC. Nonimpregnated fibers, irrespective of their length, tend to improve fracture strength of acrylics. |
| format | Article |
| id | doaj-art-f9a2957031154e2288d51385239d8c7e |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f9a2957031154e2288d51385239d8c7e2025-02-03T06:14:07ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/919142919142The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic ResinRodrigo Borges Fonseca0Amanda Vessoni Barbosa Kasuya1Isabella Negro Favarão2Lucas Zago Naves3Márcio Grama Hoeppner4Department of Restorative Dentistry and Dental Materials, Dental School, Federal University of Goiás, Praça Universitária Esquina com 1a Avenida, s/n, Setor Universitário, 74605-220 Goiânia, GO, BrazilDepartment of Restorative Dentistry and Dental Materials, Dental School, Federal University of Goiás, Praça Universitária Esquina com 1a Avenida, s/n, Setor Universitário, 74605-220 Goiânia, GO, BrazilDepartment of Restorative Dentistry and Dental Materials, Dental School, Federal University of Goiás, Praça Universitária Esquina com 1a Avenida, s/n, Setor Universitário, 74605-220 Goiânia, GO, BrazilDepartment of Dental Materials, Piracicaba Dental School, State University of Campinas, Avenue Limeira, 901 Vila Rezende, 13414-903 Piracicaba, SP, BrazilDepartment of Restorative Dentistry and Dental Materials, Dental School, State University of Londrina, Rua Pernambuco 540, Centro, 86020-120 Londrina, PR, BrazilThe aim of this study was to evaluate the flexural strength of acrylic resin bars by varying the types of resin polymerization and reinforcement methods. Fourteen groups (N=10) were created by the interaction of factors in study: type of resin (self-cured (SC) or heat-cured (HC)) and reinforcement method (industrialized glass fiber (Ind), unidirectional glass fiber (Uni), short glass fiber (Short), unidirectional and short glass fiber (Uni-Short), thermoplastic resin fiber (Tpl), and steel wire (SW)). Reinforced bars (25×2×2 mm) were tested in flexural strength (0.5 mm/min) and examined by scanning electron microscopy (SEM). Data (MPa) were submitted to factorial analysis, ANOVA, and Tukey and T-student tests (a=5%) showing significant interaction (P=0.008), for SC: Uni (241.71±67.77)a, Uni-Short (221.05±71.97)a, Ind (215.21±46.59)ab, SW (190.51±31.49)abc, Short (156.31±28.76)bcd, Tpl (132.51±20.21)cd, Control SC (101.47±19.79)d and for HC: Ind (268.93±105.65)a, Uni (215.14±67.60)ab, Short (198.44±95.27)abc, Uni-Short (189.56±92.27)abc, Tpl (161.32±62.51)cd, SW (106.69±28.70)cd, and Control HC (93.39±39.61)d. SEM analysis showed better fiber-resin interaction for HC. Nonimpregnated fibers, irrespective of their length, tend to improve fracture strength of acrylics.http://dx.doi.org/10.1155/2015/919142 |
| spellingShingle | Rodrigo Borges Fonseca Amanda Vessoni Barbosa Kasuya Isabella Negro Favarão Lucas Zago Naves Márcio Grama Hoeppner The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin The Scientific World Journal |
| title | The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin |
| title_full | The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin |
| title_fullStr | The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin |
| title_full_unstemmed | The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin |
| title_short | The Influence of Polymerization Type and Reinforcement Method on Flexural Strength of Acrylic Resin |
| title_sort | influence of polymerization type and reinforcement method on flexural strength of acrylic resin |
| url | http://dx.doi.org/10.1155/2015/919142 |
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