Impact strength of an experimental polyurethane-based polymer
The impact strength of a newly developed experimental polyurethane-based polymer which is derived from palm oil (Experimental PU) was compared with denture polymers; heat-cured and self cured polymethyl methacrylate (PMMA) and Eclipse®, light-activated urethane dimethacrylate prosthetic resin syste...
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Faculty of Dentistry, University of Malaya
2007
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my.um.eprints.25292018-10-29T02:08:40Z http://eprints.um.edu.my/2529/ Impact strength of an experimental polyurethane-based polymer Radzi, Zamri Abu Kasim, Noor Hayaty Yahya, N.A. Gan, Seng Neon Daud, N.M. Saffai, L. Fadhel, F.A. R Medicine R Medicine (General) RK Dentistry The impact strength of a newly developed experimental polyurethane-based polymer which is derived from palm oil (Experimental PU) was compared with denture polymers; heat-cured and self cured polymethyl methacrylate (PMMA) and Eclipse®, light-activated urethane dimethacrylate prosthetic resin system. Ten specimens were prepared using heat-cured PMMA (Meliodent® Heat Cure, Heraeus Kulzer, Germany), self cured PMMA (Meliodent® Rapid Repair, Heraeus Kulzer, Germany), Eclipse® baseplate resin (Dentsply, USA) and Experimental PU material. Specimens were prepared following manufacturer�s instructions except for the Experimental PU material where it was prepared in bulk and sectioned to the desired dimension, 64 x 6 x 4 mm. A �V� notch of approximately 0.8mm in depth was machine cut across the 6mm width. Prior to the Charpy type impact test, specimens were soaked in a water bath for 50 hours at 37ºC. Eclipse® baseplate resin showed the highest impact strength (2.73 kJ/m2±0.54) followed by Meliodent® Rapid Repair (2.50kJ/m2±0.65), Meliodent® Heat Cure (1.96kJ/m2±0.42) and Experimental PU (1.04kJ/m2±0.29). One-way ANOVA showed significant interaction between materials (p<.05) and Tukey HSD revealed that Experimental PU exhibited significantly lower impact strength compared to other materials. Meliodent® Rapid Repair was not significantly different from Meliodent® Heat Cure and Eclipse® baseplate resin. It can be concluded that the Experimental PU exhibited the lowest impact strength while Eclipse® baseplate resin the highest. Faculty of Dentistry, University of Malaya 2007 Article PeerReviewed application/pdf en http://eprints.um.edu.my/2529/1/Impact_strength_of_an_experimental_polyurethane.pdf application/pdf en http://eprints.um.edu.my/2529/2/IMPACT_STRENGTH_OF_AN_EXPERIMENTAL_POLYURETHANEBASED_%28original%29.pdf Radzi, Zamri and Abu Kasim, Noor Hayaty and Yahya, N.A. and Gan, Seng Neon and Daud, N.M. and Saffai, L. and Fadhel, F.A. (2007) Impact strength of an experimental polyurethane-based polymer. Annals of Dentistry University of Malaya, 14. pp. 46-51. ISSN 0128-7532 https://ejournal.um.edu.my/index.php/adum/article/view/13784 |
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R Medicine R Medicine (General) RK Dentistry Radzi, Zamri Abu Kasim, Noor Hayaty Yahya, N.A. Gan, Seng Neon Daud, N.M. Saffai, L. Fadhel, F.A. Impact strength of an experimental polyurethane-based polymer |
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The impact strength of a newly developed experimental polyurethane-based polymer which is derived from palm oil (Experimental PU) was compared with denture polymers; heat-cured and self cured polymethyl methacrylate (PMMA) and Eclipse®, light-activated urethane dimethacrylate prosthetic resin system. Ten specimens were prepared using heat-cured PMMA (Meliodent® Heat Cure, Heraeus Kulzer, Germany), self cured PMMA (Meliodent® Rapid Repair, Heraeus Kulzer, Germany), Eclipse® baseplate resin (Dentsply, USA) and Experimental PU material. Specimens were prepared following manufacturer�s instructions except for the Experimental PU material where it was prepared in bulk and sectioned to the desired dimension, 64 x 6 x 4 mm. A �V� notch of approximately 0.8mm in depth was machine cut across the 6mm width. Prior to the Charpy type impact test, specimens were soaked in a water bath for 50 hours at 37ºC. Eclipse® baseplate resin showed the highest impact strength (2.73 kJ/m2±0.54) followed by Meliodent® Rapid Repair (2.50kJ/m2±0.65), Meliodent® Heat Cure (1.96kJ/m2±0.42) and Experimental PU (1.04kJ/m2±0.29). One-way ANOVA showed significant interaction between materials (p<.05) and Tukey HSD revealed that Experimental PU exhibited significantly lower impact strength compared to other materials. Meliodent® Rapid Repair was not significantly different from Meliodent® Heat Cure and Eclipse® baseplate resin. It can be concluded that the Experimental PU exhibited the lowest impact strength while Eclipse® baseplate resin the highest. |
format |
Article |
author |
Radzi, Zamri Abu Kasim, Noor Hayaty Yahya, N.A. Gan, Seng Neon Daud, N.M. Saffai, L. Fadhel, F.A. |
author_facet |
Radzi, Zamri Abu Kasim, Noor Hayaty Yahya, N.A. Gan, Seng Neon Daud, N.M. Saffai, L. Fadhel, F.A. |
author_sort |
Radzi, Zamri |
title |
Impact strength of an experimental polyurethane-based polymer |
title_short |
Impact strength of an experimental polyurethane-based polymer |
title_full |
Impact strength of an experimental polyurethane-based polymer |
title_fullStr |
Impact strength of an experimental polyurethane-based polymer |
title_full_unstemmed |
Impact strength of an experimental polyurethane-based polymer |
title_sort |
impact strength of an experimental polyurethane-based polymer |
publisher |
Faculty of Dentistry, University of Malaya |
publishDate |
2007 |
url |
http://eprints.um.edu.my/2529/1/Impact_strength_of_an_experimental_polyurethane.pdf http://eprints.um.edu.my/2529/2/IMPACT_STRENGTH_OF_AN_EXPERIMENTAL_POLYURETHANEBASED_%28original%29.pdf http://eprints.um.edu.my/2529/ https://ejournal.um.edu.my/index.php/adum/article/view/13784 |
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1643686947205414912 |
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13.18916 |