Flexural strengths of reinforced denture base resins subjected to long-term water immersion
Objective This study evaluated the flexural strengths of reinforced denture base resins subjected to long-term water immersion. Materials and methods Acrylic denture base resin reinforced with metal wire or glass fiber-reinforced composite (FRC), and without reinforcement were tested. Bar-shaped spe...
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| Format: | Article |
| Language: | English |
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Medical Journals Sweden
2016-12-01
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| Series: | Acta Biomaterialia Odontologica Scandinavica |
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| Online Access: | http://dx.doi.org/10.3109/23337931.2015.1135745 |
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| author | Kaneyoshi Yoshida Yutaka Takahashi Hirono Sasaki Ippei Hamanaka Tomohiro Kawaguchi |
| author_facet | Kaneyoshi Yoshida Yutaka Takahashi Hirono Sasaki Ippei Hamanaka Tomohiro Kawaguchi |
| author_sort | Kaneyoshi Yoshida |
| collection | DOAJ |
| description | Objective This study evaluated the flexural strengths of reinforced denture base resins subjected to long-term water immersion. Materials and methods Acrylic denture base resin reinforced with metal wire or glass fiber-reinforced composite (FRC), and without reinforcement were tested. Bar-shaped specimens were fabricated. Half of the specimens were stored in 37 °C distilled water for 50 hours (h), the other half were stored in 37 °C distilled water for 180 days (d) before testing. Ten specimens were fabricated per group for each reinforcement/water immersion period combination. The ultimate flexural strength and flexural strength at the proportional limit of reinforced denture base resin were tested. Results The 180 d bulk specimen possessed significantly lower ultimate flexural strength compared with the 50 h bulk specimen (p < 0.05). The ultimate flexural strength of the 50 h metal, 50 h FRC, 180 d metal and the 180 d FRC reinforcement specimens were not significantly different from each other (p > 0.05). The 180 d bulk specimen had a significantly lower flexural strength at the proportional limit compared to the 50 h bulk specimen. The 180 d reinforced specimens of metal and FRC were not significantly different from each of the 50 h specimens. Conclusion The flexural strengths of a reinforced denture base resin did not change after long-term water immersion. |
| format | Article |
| id | doaj-art-fdfcbc746abd4b6e9baf80a75f9a4e9e |
| institution | OA Journals |
| issn | 2333-7931 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Medical Journals Sweden |
| record_format | Article |
| series | Acta Biomaterialia Odontologica Scandinavica |
| spelling | doaj-art-fdfcbc746abd4b6e9baf80a75f9a4e9e2025-08-20T02:08:28ZengMedical Journals SwedenActa Biomaterialia Odontologica Scandinavica2333-79312016-12-0121202410.3109/23337931.2015.11357451135745Flexural strengths of reinforced denture base resins subjected to long-term water immersionKaneyoshi Yoshida0Yutaka Takahashi1Hirono Sasaki2Ippei Hamanaka3Tomohiro Kawaguchi4Fukuoka Dental CollegeFukuoka Dental CollegeFukuoka Dental CollegeFukuoka Dental CollegeFukuoka Dental CollegeObjective This study evaluated the flexural strengths of reinforced denture base resins subjected to long-term water immersion. Materials and methods Acrylic denture base resin reinforced with metal wire or glass fiber-reinforced composite (FRC), and without reinforcement were tested. Bar-shaped specimens were fabricated. Half of the specimens were stored in 37 °C distilled water for 50 hours (h), the other half were stored in 37 °C distilled water for 180 days (d) before testing. Ten specimens were fabricated per group for each reinforcement/water immersion period combination. The ultimate flexural strength and flexural strength at the proportional limit of reinforced denture base resin were tested. Results The 180 d bulk specimen possessed significantly lower ultimate flexural strength compared with the 50 h bulk specimen (p < 0.05). The ultimate flexural strength of the 50 h metal, 50 h FRC, 180 d metal and the 180 d FRC reinforcement specimens were not significantly different from each other (p > 0.05). The 180 d bulk specimen had a significantly lower flexural strength at the proportional limit compared to the 50 h bulk specimen. The 180 d reinforced specimens of metal and FRC were not significantly different from each of the 50 h specimens. Conclusion The flexural strengths of a reinforced denture base resin did not change after long-term water immersion.http://dx.doi.org/10.3109/23337931.2015.1135745Flexural strength at the proportional limitglass fiber-reinforced compositemetal wireultimate flexural strength |
| spellingShingle | Kaneyoshi Yoshida Yutaka Takahashi Hirono Sasaki Ippei Hamanaka Tomohiro Kawaguchi Flexural strengths of reinforced denture base resins subjected to long-term water immersion Acta Biomaterialia Odontologica Scandinavica Flexural strength at the proportional limit glass fiber-reinforced composite metal wire ultimate flexural strength |
| title | Flexural strengths of reinforced denture base resins subjected to long-term water immersion |
| title_full | Flexural strengths of reinforced denture base resins subjected to long-term water immersion |
| title_fullStr | Flexural strengths of reinforced denture base resins subjected to long-term water immersion |
| title_full_unstemmed | Flexural strengths of reinforced denture base resins subjected to long-term water immersion |
| title_short | Flexural strengths of reinforced denture base resins subjected to long-term water immersion |
| title_sort | flexural strengths of reinforced denture base resins subjected to long term water immersion |
| topic | Flexural strength at the proportional limit glass fiber-reinforced composite metal wire ultimate flexural strength |
| url | http://dx.doi.org/10.3109/23337931.2015.1135745 |
| work_keys_str_mv | AT kaneyoshiyoshida flexuralstrengthsofreinforceddenturebaseresinssubjectedtolongtermwaterimmersion AT yutakatakahashi flexuralstrengthsofreinforceddenturebaseresinssubjectedtolongtermwaterimmersion AT hironosasaki flexuralstrengthsofreinforceddenturebaseresinssubjectedtolongtermwaterimmersion AT ippeihamanaka flexuralstrengthsofreinforceddenturebaseresinssubjectedtolongtermwaterimmersion AT tomohirokawaguchi flexuralstrengthsofreinforceddenturebaseresinssubjectedtolongtermwaterimmersion |