Mechanical properties and fracture behavior of flowable fiber reinforced composite restorations
The aim was to evaluate the effect of short glass-fiber/filler particles proportion on fracture toughness (FT) and flexural strength (FS) of an experimental flowable fiber-reinforced composite (Exp-SFRC) with two methacrylate resin formulations. In addition, we wanted to investigate how the fracture...
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| Veröffentlicht in: | Dental materials 2018-04, Vol.34 (4), p.598-606 |
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| creator | Lassila, Lippo Keulemans, Filip Säilynoja, Eija Vallittu, Pekka K. Garoushi, Sufyan |
| description | The aim was to evaluate the effect of short glass-fiber/filler particles proportion on fracture toughness (FT) and flexural strength (FS) of an experimental flowable fiber-reinforced composite (Exp-SFRC) with two methacrylate resin formulations. In addition, we wanted to investigate how the fracture-behavior of composite restorations affected by FT values of SFRC-substructure.
Exp-SFRC was prepared by mixing 50wt% of dimethacrylate based resin matrix (bisGMA or UDMA based) to 50wt% of various weight fractions of glass-fiber/particulate filler (0:50, 10:40, 20:30, 30:20, 40:10, 50:0wt%, respectively). FT and FS were determined for each experimental material following standards. Specimens (n=8) were dry stored (37°C for 2 days) before they were tested. Four groups of posterior composite crowns (n=6) composed of different Exp-SFRCs as substructure and surface layer of commercial particulate filler composite were fabricated. Crowns were statically loaded until fracture. Failure modes were visually examined. The results were statistically analysed using ANOVA followed by post hoc Tukey’s test.
ANOVA revealed that ratio of glass-fiber/particulate filler had significant effect (p |
| doi_str_mv | 10.1016/j.dental.2018.01.002 |
| format | Article |
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Exp-SFRC was prepared by mixing 50wt% of dimethacrylate based resin matrix (bisGMA or UDMA based) to 50wt% of various weight fractions of glass-fiber/particulate filler (0:50, 10:40, 20:30, 30:20, 40:10, 50:0wt%, respectively). FT and FS were determined for each experimental material following standards. Specimens (n=8) were dry stored (37°C for 2 days) before they were tested. Four groups of posterior composite crowns (n=6) composed of different Exp-SFRCs as substructure and surface layer of commercial particulate filler composite were fabricated. Crowns were statically loaded until fracture. Failure modes were visually examined. The results were statistically analysed using ANOVA followed by post hoc Tukey’s test.
ANOVA revealed that ratio of glass-fiber/particulate filler had significant effect (p<0.05) on tested mechanical properties of the Exp-SFRC with both monomer systems. Exp-SFRC (50wt%) had significantly higher FT (2.6MPam1/2) and FS (175.5MPa) (p<0.05) compared to non-reinforced material (1.3MPam1/2, 123MPa). Failure mode analysis of crown restorations revealed that FT value of the substructure directly influenced the failure mode.
This study shows that short glass-fibers can significantly reinforce flowable composite resin and the FT value of SFRC-substructure has prior importance, as it influences the crack arresting mechanism.</description><identifier>ISSN: 0109-5641</identifier><identifier>EISSN: 1879-0097</identifier><identifier>DOI: 10.1016/j.dental.2018.01.002</identifier><identifier>PMID: 29366493</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Acrylic resins ; Bisphenol A glycidyl methacrylate ; Bisphenol A-Glycidyl Methacrylate - chemistry ; Composite Resins - chemical synthesis ; Composite Resins - chemistry ; Crowns ; Dental care ; Dental crowns ; Dental Materials - chemical synthesis ; Dental Materials - chemistry ; Dental Restoration Failure ; Dental Stress Analysis ; Dentistry ; Failure analysis ; Failure modes ; Fiber composites ; Fiber reinforced composites ; Fiber reinforced flowable composite ; Fiber reinforced polymers ; Filler metals ; Flexural Strength ; Formulations ; Fracture toughness ; Glass ; Materials Testing ; Mechanical properties ; Methacrylates - chemistry ; Particulate composites ; Particulates ; Polyethylene Glycols - chemistry ; Polymethacrylic Acids - chemistry ; Polymethyl Methacrylate - chemistry ; Polyurethanes - chemistry ; Posterior restoration ; Resins ; Surface layers ; Surface Properties ; Variance analysis</subject><ispartof>Dental materials, 2018-04, Vol.34 (4), p.598-606</ispartof><rights>2018 The Academy of Dental Materials</rights><rights>Copyright © 2018 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.</rights><rights>Copyright Elsevier BV Apr 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c456t-697b83faa8631a1ced1abc433185e093793b9b0286f6e5ee06af37ecb48a1bc13</citedby><cites>FETCH-LOGICAL-c456t-697b83faa8631a1ced1abc433185e093793b9b0286f6e5ee06af37ecb48a1bc13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0109564117310205$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29366493$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lassila, Lippo</creatorcontrib><creatorcontrib>Keulemans, Filip</creatorcontrib><creatorcontrib>Säilynoja, Eija</creatorcontrib><creatorcontrib>Vallittu, Pekka K.</creatorcontrib><creatorcontrib>Garoushi, Sufyan</creatorcontrib><title>Mechanical properties and fracture behavior of flowable fiber reinforced composite restorations</title><title>Dental materials</title><addtitle>Dent Mater</addtitle><description>The aim was to evaluate the effect of short glass-fiber/filler particles proportion on fracture toughness (FT) and flexural strength (FS) of an experimental flowable fiber-reinforced composite (Exp-SFRC) with two methacrylate resin formulations. In addition, we wanted to investigate how the fracture-behavior of composite restorations affected by FT values of SFRC-substructure.
Exp-SFRC was prepared by mixing 50wt% of dimethacrylate based resin matrix (bisGMA or UDMA based) to 50wt% of various weight fractions of glass-fiber/particulate filler (0:50, 10:40, 20:30, 30:20, 40:10, 50:0wt%, respectively). FT and FS were determined for each experimental material following standards. Specimens (n=8) were dry stored (37°C for 2 days) before they were tested. Four groups of posterior composite crowns (n=6) composed of different Exp-SFRCs as substructure and surface layer of commercial particulate filler composite were fabricated. Crowns were statically loaded until fracture. Failure modes were visually examined. The results were statistically analysed using ANOVA followed by post hoc Tukey’s test.
ANOVA revealed that ratio of glass-fiber/particulate filler had significant effect (p<0.05) on tested mechanical properties of the Exp-SFRC with both monomer systems. Exp-SFRC (50wt%) had significantly higher FT (2.6MPam1/2) and FS (175.5MPa) (p<0.05) compared to non-reinforced material (1.3MPam1/2, 123MPa). Failure mode analysis of crown restorations revealed that FT value of the substructure directly influenced the failure mode.
This study shows that short glass-fibers can significantly reinforce flowable composite resin and the FT value of SFRC-substructure has prior importance, as it influences the crack arresting mechanism.</description><subject>Acrylic resins</subject><subject>Bisphenol A glycidyl methacrylate</subject><subject>Bisphenol A-Glycidyl Methacrylate - chemistry</subject><subject>Composite Resins - chemical synthesis</subject><subject>Composite Resins - chemistry</subject><subject>Crowns</subject><subject>Dental care</subject><subject>Dental crowns</subject><subject>Dental Materials - chemical synthesis</subject><subject>Dental Materials - chemistry</subject><subject>Dental Restoration Failure</subject><subject>Dental Stress Analysis</subject><subject>Dentistry</subject><subject>Failure analysis</subject><subject>Failure modes</subject><subject>Fiber composites</subject><subject>Fiber reinforced composites</subject><subject>Fiber reinforced flowable composite</subject><subject>Fiber reinforced polymers</subject><subject>Filler metals</subject><subject>Flexural Strength</subject><subject>Formulations</subject><subject>Fracture toughness</subject><subject>Glass</subject><subject>Materials Testing</subject><subject>Mechanical properties</subject><subject>Methacrylates - chemistry</subject><subject>Particulate composites</subject><subject>Particulates</subject><subject>Polyethylene Glycols - chemistry</subject><subject>Polymethacrylic Acids - chemistry</subject><subject>Polymethyl Methacrylate - chemistry</subject><subject>Polyurethanes - chemistry</subject><subject>Posterior restoration</subject><subject>Resins</subject><subject>Surface layers</subject><subject>Surface Properties</subject><subject>Variance analysis</subject><issn>0109-5641</issn><issn>1879-0097</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUGLFDEQhYMo7uzqPxAJePHSbVWnO51cBFl0FVa86Dkk6QqboaczJt0r--_NMKsHD54Kiq9e1avH2CuEFgHlu3070bLaue0AVQvYAnRP2A7VqBsAPT5lO0DQzSB7vGCXpewBoO80PmcXnRZS9lrsmPlK_s4u0duZH3M6Ul4jFW6XiYds_bpl4o7u7H1MmafAw5x-WTcTD9FR5pniElL2NHGfDsdU4kq1WdaU7RrTUl6wZ8HOhV4-1iv249PH79efm9tvN1-uP9w2vh_k2kg9OiWCtUoKtFj10DrfC4FqINBi1MJpB52SQdJABNIGMZJ3vbLoPIor9vasW0383OoB5hCLp3m2C6WtGNQaUSnRDxV98w-6T1te6nWmg7EbpRrhRPVnyudUSqZgjjkebH4wCOYUgNmbcwDmFIABNDWAOvb6UXxzB5r-Dv35eAXenwGq37iPlE3xkZbqOGbyq5lS_P-G3ybimeY</recordid><startdate>201804</startdate><enddate>201804</enddate><creator>Lassila, Lippo</creator><creator>Keulemans, Filip</creator><creator>Säilynoja, Eija</creator><creator>Vallittu, Pekka K.</creator><creator>Garoushi, Sufyan</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QP</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope></search><sort><creationdate>201804</creationdate><title>Mechanical properties and fracture behavior of flowable fiber reinforced composite restorations</title><author>Lassila, Lippo ; 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In addition, we wanted to investigate how the fracture-behavior of composite restorations affected by FT values of SFRC-substructure.
Exp-SFRC was prepared by mixing 50wt% of dimethacrylate based resin matrix (bisGMA or UDMA based) to 50wt% of various weight fractions of glass-fiber/particulate filler (0:50, 10:40, 20:30, 30:20, 40:10, 50:0wt%, respectively). FT and FS were determined for each experimental material following standards. Specimens (n=8) were dry stored (37°C for 2 days) before they were tested. Four groups of posterior composite crowns (n=6) composed of different Exp-SFRCs as substructure and surface layer of commercial particulate filler composite were fabricated. Crowns were statically loaded until fracture. Failure modes were visually examined. The results were statistically analysed using ANOVA followed by post hoc Tukey’s test.
ANOVA revealed that ratio of glass-fiber/particulate filler had significant effect (p<0.05) on tested mechanical properties of the Exp-SFRC with both monomer systems. Exp-SFRC (50wt%) had significantly higher FT (2.6MPam1/2) and FS (175.5MPa) (p<0.05) compared to non-reinforced material (1.3MPam1/2, 123MPa). Failure mode analysis of crown restorations revealed that FT value of the substructure directly influenced the failure mode.
This study shows that short glass-fibers can significantly reinforce flowable composite resin and the FT value of SFRC-substructure has prior importance, as it influences the crack arresting mechanism.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29366493</pmid><doi>10.1016/j.dental.2018.01.002</doi><tpages>9</tpages></addata></record> |
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| ispartof | Dental materials, 2018-04, Vol.34 (4), p.598-606 |
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| subjects | Acrylic resins Bisphenol A glycidyl methacrylate Bisphenol A-Glycidyl Methacrylate - chemistry Composite Resins - chemical synthesis Composite Resins - chemistry Crowns Dental care Dental crowns Dental Materials - chemical synthesis Dental Materials - chemistry Dental Restoration Failure Dental Stress Analysis Dentistry Failure analysis Failure modes Fiber composites Fiber reinforced composites Fiber reinforced flowable composite Fiber reinforced polymers Filler metals Flexural Strength Formulations Fracture toughness Glass Materials Testing Mechanical properties Methacrylates - chemistry Particulate composites Particulates Polyethylene Glycols - chemistry Polymethacrylic Acids - chemistry Polymethyl Methacrylate - chemistry Polyurethanes - chemistry Posterior restoration Resins Surface layers Surface Properties Variance analysis |
| title | Mechanical properties and fracture behavior of flowable fiber reinforced composite restorations |
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