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Conference Paper: Effect of oral environment on new fiber-reinforced composites system

TitleEffect of oral environment on new fiber-reinforced composites system
Authors
KeywordsMedical sciences
Dentistry
Issue Date2013
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental
Citation
The 2013 Annual Meeting of the Academy of Dental Materials (ADM), Vancouver, BC., Canada, 9-12 October 2013. In Dental Materials, 2013, v. 29 suppl. 1, p. e59, abstract no. 120 How to Cite?
AbstractPURPOSE: Fiber-reinforced composite (FRC) consists of matrix that is reinforced with thin fibers, which have high tensile strength and flexural modulus (Zhang and Matinlinna, Silicon 4 (2012) 73). The bis-GMA-MMA combination is widely used as resin matrix, whereas bis-GMA is reported to be the most cytotoxic monomer among dental resin composite monomers (Moharamzadeh et al., Material 2 (2009) 514). Resin matrix 1,6-hexanediol dimethacrylate (HDMA) has similar reactive groups than bis-GMA, and is not listed among carcinogens (Vallittu and Sevelius, J Prosthet Dent 84 (2000) 13). The purpose of this study was to investigate the water sorption of a new resin matrix system of FRC based on HDMA. METHODS AND MATERIALS: Materials used were: E-glass fiber bundles (Stick Tech, Finland), HDMA (Esstech, USA), bis-GMA (Sigma–Aldrich, USA), MMA (ProSciTech, Australia), CQ (Esstech, USA) and CEMA (Esstech, USA). Fifteen specimens (2mm×2mm×25mm) were prepared and divided into 3 groups. Composition of group 1: 78.4%HDMA +19.6%MMA+ 1.0%CQ + 1.0%CEMA; group 2: 49.0%HDMA +49.0%MMA+ 1.0%CQ + 1.0%CEMA; and group 3: 78.4%bis-GMA +19.6%MMA+ 1.0%CQ + 1.0%CEMA. Specimens with two fiber rovings of 25mm long were placed in a mould and monomers were added and light-cured with halogen light-curing unit on both sides for 3×40 s. Specimens were immersed in 15 ml distilled water of 37 ◦C for 21 days. The difference in weights, before and after immersion were recorded. Data obtained were analyzed by one-way ANOVA and LSD. RESULTS: As for the difference in weights (before and after immersion), group 1 showed the lowest average (0.004%), followed by group 3 (0.003%) and group 2 (0.01%). Statistical analysis (ANOVA) proved a significant difference among the three groups (p < 0.05). Result of LSD showed there was a significant difference between group 1 and group 2 (p < 0.05), but no significant difference between group 1 and group 3 (p > 0.05). CONCLUSION: It can be concluded that FRC based on HDMA matrix system (group-1) is comparable to bis-GMA (group-3) on its water sorption.
DescriptionThis journal suppl. entitled: Abstracts of the Academy of Dental Materials Annual Meeting, 9-12 October 2013 - Vancouver, BC, Canada
Persistent Identifierhttp://hdl.handle.net/10722/209858
ISSN
2015 Impact Factor: 3.931
2015 SCImago Journal Rankings: 1.339

 

DC FieldValueLanguage
dc.contributor.authorSiswomihardjo, W-
dc.contributor.authorSunarintyas, S-
dc.contributor.authorMatinlinna, JP-
dc.date.accessioned2015-05-18T03:28:28Z-
dc.date.available2015-05-18T03:28:28Z-
dc.date.issued2013-
dc.identifier.citationThe 2013 Annual Meeting of the Academy of Dental Materials (ADM), Vancouver, BC., Canada, 9-12 October 2013. In Dental Materials, 2013, v. 29 suppl. 1, p. e59, abstract no. 120-
dc.identifier.issn0109-5641-
dc.identifier.urihttp://hdl.handle.net/10722/209858-
dc.descriptionThis journal suppl. entitled: Abstracts of the Academy of Dental Materials Annual Meeting, 9-12 October 2013 - Vancouver, BC, Canada-
dc.description.abstractPURPOSE: Fiber-reinforced composite (FRC) consists of matrix that is reinforced with thin fibers, which have high tensile strength and flexural modulus (Zhang and Matinlinna, Silicon 4 (2012) 73). The bis-GMA-MMA combination is widely used as resin matrix, whereas bis-GMA is reported to be the most cytotoxic monomer among dental resin composite monomers (Moharamzadeh et al., Material 2 (2009) 514). Resin matrix 1,6-hexanediol dimethacrylate (HDMA) has similar reactive groups than bis-GMA, and is not listed among carcinogens (Vallittu and Sevelius, J Prosthet Dent 84 (2000) 13). The purpose of this study was to investigate the water sorption of a new resin matrix system of FRC based on HDMA. METHODS AND MATERIALS: Materials used were: E-glass fiber bundles (Stick Tech, Finland), HDMA (Esstech, USA), bis-GMA (Sigma–Aldrich, USA), MMA (ProSciTech, Australia), CQ (Esstech, USA) and CEMA (Esstech, USA). Fifteen specimens (2mm×2mm×25mm) were prepared and divided into 3 groups. Composition of group 1: 78.4%HDMA +19.6%MMA+ 1.0%CQ + 1.0%CEMA; group 2: 49.0%HDMA +49.0%MMA+ 1.0%CQ + 1.0%CEMA; and group 3: 78.4%bis-GMA +19.6%MMA+ 1.0%CQ + 1.0%CEMA. Specimens with two fiber rovings of 25mm long were placed in a mould and monomers were added and light-cured with halogen light-curing unit on both sides for 3×40 s. Specimens were immersed in 15 ml distilled water of 37 ◦C for 21 days. The difference in weights, before and after immersion were recorded. Data obtained were analyzed by one-way ANOVA and LSD. RESULTS: As for the difference in weights (before and after immersion), group 1 showed the lowest average (0.004%), followed by group 3 (0.003%) and group 2 (0.01%). Statistical analysis (ANOVA) proved a significant difference among the three groups (p < 0.05). Result of LSD showed there was a significant difference between group 1 and group 2 (p < 0.05), but no significant difference between group 1 and group 3 (p > 0.05). CONCLUSION: It can be concluded that FRC based on HDMA matrix system (group-1) is comparable to bis-GMA (group-3) on its water sorption.-
dc.languageeng-
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental-
dc.relation.ispartofDental Materials-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Dental Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Dental Materials, v. 29 suppl. 1, 2013. DOI: 10.1016/j.dental.2013.08.121-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectMedical sciences-
dc.subjectDentistry-
dc.titleEffect of oral environment on new fiber-reinforced composites system-
dc.typeConference_Paper-
dc.identifier.emailMatinlinna, JP: jpmat@hku.hk-
dc.identifier.authorityMatinlinna, JP=rp00052-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.dental.2013.08.121-
dc.identifier.hkuros243148-
dc.identifier.volume29-
dc.identifier.issuesuppl. 1-
dc.identifier.spagee59, abstract no. 120-
dc.identifier.epagee59, abstract no. 120-
dc.publisher.placeUnited States-

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