Effect of thermocycling on the flexural and impact strength of urethane-based and high-impact denture base resins
doi: 10.1111/j.1741‐2358.2011.00474.x Effect of thermocycling on the flexural and impact strength of urethane‐based and high‐impact denture base resins Objective: Mechanical properties of the acrylic resins used for denture fabrication may be influenced by water and temperature. Thus, the aim of...
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| Veröffentlicht in: | Gerodontology 2012-06, Vol.29 (2), p.e318-e323 |
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| creator | Machado, Ana Lucia Puckett, Aaron D. Breeding, Larry C. Wady, Amanda Fucci Vergani, Carlos Eduardo |
| description | doi: 10.1111/j.1741‐2358.2011.00474.x
Effect of thermocycling on the flexural and impact strength of urethane‐based and high‐impact denture base resins
Objective: Mechanical properties of the acrylic resins used for denture fabrication may be influenced by water and temperature. Thus, the aim of this study was to evaluate the effect of thermocycling on the flexural and impact strength of a high‐impact (Lucitone 199) and a urethane‐based denture material (Eclipse).
Materials and methods: Flexural strength (64 × 10 × 3.3 mm) and impact strength (60 × 6 × 4 mm) specimens were made following the manufacturers’ instructions and assigned to two groups (n = 10): control (C) – not thermocycled – and T – thermocycled (5000 cycles between 5 and 55°C). Specimens were submitted to three‐point bending and Charpy impact tests.
Results: Flexural strength (MPa) and impact strength (kJ/m2) data were analysed with two‐way anova (p = 0.05). The flexural strength of material Eclipse (C, 136.5; T, 130.7) was significantly higher than that of resin Lucitone 550 (C, 99.4; T, 90.1). Material Eclipse exhibited significantly higher impact strength (C, 6.9; T, 5.3) than the resin Lucitone 550 (C, 3.5; T, 3.0). For both materials, a significant decrease in flexural and impact strengths was observed when the specimens were thermocycled.
Conclusion: Flexural and impact strengths were higher for Eclipse than for Lucitone 550, in both groups. Thermocycling decreased the flexural and impact strengths of Eclipse and Lucitone 550. |
| doi_str_mv | 10.1111/j.1741-2358.2011.00474.x |
| format | Article |
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Effect of thermocycling on the flexural and impact strength of urethane‐based and high‐impact denture base resins
Objective: Mechanical properties of the acrylic resins used for denture fabrication may be influenced by water and temperature. Thus, the aim of this study was to evaluate the effect of thermocycling on the flexural and impact strength of a high‐impact (Lucitone 199) and a urethane‐based denture material (Eclipse).
Materials and methods: Flexural strength (64 × 10 × 3.3 mm) and impact strength (60 × 6 × 4 mm) specimens were made following the manufacturers’ instructions and assigned to two groups (n = 10): control (C) – not thermocycled – and T – thermocycled (5000 cycles between 5 and 55°C). Specimens were submitted to three‐point bending and Charpy impact tests.
Results: Flexural strength (MPa) and impact strength (kJ/m2) data were analysed with two‐way anova (p = 0.05). The flexural strength of material Eclipse (C, 136.5; T, 130.7) was significantly higher than that of resin Lucitone 550 (C, 99.4; T, 90.1). Material Eclipse exhibited significantly higher impact strength (C, 6.9; T, 5.3) than the resin Lucitone 550 (C, 3.5; T, 3.0). For both materials, a significant decrease in flexural and impact strengths was observed when the specimens were thermocycled.
Conclusion: Flexural and impact strengths were higher for Eclipse than for Lucitone 550, in both groups. Thermocycling decreased the flexural and impact strengths of Eclipse and Lucitone 550.</description><identifier>ISSN: 0734-0664</identifier><identifier>EISSN: 1741-2358</identifier><identifier>DOI: 10.1111/j.1741-2358.2011.00474.x</identifier><identifier>PMID: 21453415</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Acrylic Resins - chemistry ; Composite Resins - chemistry ; Dental Materials - chemistry ; Dental Stress Analysis - instrumentation ; Dentistry ; denture base acrylic resins ; Denture Bases ; flexural strength ; Hardness ; Hot Temperature ; Humans ; impact strength ; Materials Testing ; Methacrylates - chemistry ; Pliability ; Polyurethanes - chemistry ; Stress, Mechanical ; Surface Properties ; Temperature ; thermocycling ; Time Factors ; Water - chemistry</subject><ispartof>Gerodontology, 2012-06, Vol.29 (2), p.e318-e323</ispartof><rights>2011 The Gerodontology Society and John Wiley & Sons A/S</rights><rights>2011 The Gerodontology Society and John Wiley & Sons A/S.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5224-ac068f815b0fb0648bd9a3e67f3e3d2fbc2327f2f5d57a101999b37bd10d1d6e3</citedby><cites>FETCH-LOGICAL-c5224-ac068f815b0fb0648bd9a3e67f3e3d2fbc2327f2f5d57a101999b37bd10d1d6e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1741-2358.2011.00474.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1741-2358.2011.00474.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,27911,27912,45561,45562</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21453415$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Machado, Ana Lucia</creatorcontrib><creatorcontrib>Puckett, Aaron D.</creatorcontrib><creatorcontrib>Breeding, Larry C.</creatorcontrib><creatorcontrib>Wady, Amanda Fucci</creatorcontrib><creatorcontrib>Vergani, Carlos Eduardo</creatorcontrib><title>Effect of thermocycling on the flexural and impact strength of urethane-based and high-impact denture base resins</title><title>Gerodontology</title><addtitle>Gerodontology</addtitle><description>doi: 10.1111/j.1741‐2358.2011.00474.x
Effect of thermocycling on the flexural and impact strength of urethane‐based and high‐impact denture base resins
Objective: Mechanical properties of the acrylic resins used for denture fabrication may be influenced by water and temperature. Thus, the aim of this study was to evaluate the effect of thermocycling on the flexural and impact strength of a high‐impact (Lucitone 199) and a urethane‐based denture material (Eclipse).
Materials and methods: Flexural strength (64 × 10 × 3.3 mm) and impact strength (60 × 6 × 4 mm) specimens were made following the manufacturers’ instructions and assigned to two groups (n = 10): control (C) – not thermocycled – and T – thermocycled (5000 cycles between 5 and 55°C). Specimens were submitted to three‐point bending and Charpy impact tests.
Results: Flexural strength (MPa) and impact strength (kJ/m2) data were analysed with two‐way anova (p = 0.05). The flexural strength of material Eclipse (C, 136.5; T, 130.7) was significantly higher than that of resin Lucitone 550 (C, 99.4; T, 90.1). Material Eclipse exhibited significantly higher impact strength (C, 6.9; T, 5.3) than the resin Lucitone 550 (C, 3.5; T, 3.0). For both materials, a significant decrease in flexural and impact strengths was observed when the specimens were thermocycled.
Conclusion: Flexural and impact strengths were higher for Eclipse than for Lucitone 550, in both groups. Thermocycling decreased the flexural and impact strengths of Eclipse and Lucitone 550.</description><subject>Acrylic Resins - chemistry</subject><subject>Composite Resins - chemistry</subject><subject>Dental Materials - chemistry</subject><subject>Dental Stress Analysis - instrumentation</subject><subject>Dentistry</subject><subject>denture base acrylic resins</subject><subject>Denture Bases</subject><subject>flexural strength</subject><subject>Hardness</subject><subject>Hot Temperature</subject><subject>Humans</subject><subject>impact strength</subject><subject>Materials Testing</subject><subject>Methacrylates - chemistry</subject><subject>Pliability</subject><subject>Polyurethanes - chemistry</subject><subject>Stress, Mechanical</subject><subject>Surface Properties</subject><subject>Temperature</subject><subject>thermocycling</subject><subject>Time Factors</subject><subject>Water - chemistry</subject><issn>0734-0664</issn><issn>1741-2358</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkE2P0zAQhi0EYsvCX0A-cknwt1OJC1qVLKsKJASCm-XE4yYlH107Ee2_x9mWnvHF1szzzFgvQpiSnKbzfp9TLWjGuCxyRijNCRFa5MdnaHVtPEcrornIiFLiBr2KcU8Ik5rxl-iGUSG5oHKFHjfeQz3h0eOpgdCP9anu2mGHx2EpYN_BcQ62w3ZwuO0PNrFxCjDspmaR5gBTYwfIKhvBPVFNu2uyC-pgmBKCly4OENshvkYvvO0ivLnct-jHp833u_ts-7X8fPdxm9WSMZHZmqjCF1RWxFdEiaJya8tBac-BO-armnGmPfPSSW0poev1uuK6cpQ46hTwW_TuPPcQxscZ4mT6NtbQdem34xxNUqRQiguR0OKM1mGMMYA3h9D2NpwSZJbAzd4suZolV7MEbp4CN8ekvr1smase3FX8l3ACPpyBP20Hp_8ebMrNt_RIenbW2zjB8arb8NsozbU0P7-UZvtAy4fyXptf_C-BfZ7w</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Machado, Ana Lucia</creator><creator>Puckett, Aaron D.</creator><creator>Breeding, Larry C.</creator><creator>Wady, Amanda Fucci</creator><creator>Vergani, Carlos Eduardo</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><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>7X8</scope></search><sort><creationdate>201206</creationdate><title>Effect of thermocycling on the flexural and impact strength of urethane-based and high-impact denture base resins</title><author>Machado, Ana Lucia ; Puckett, Aaron D. ; Breeding, Larry C. ; Wady, Amanda Fucci ; Vergani, Carlos Eduardo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5224-ac068f815b0fb0648bd9a3e67f3e3d2fbc2327f2f5d57a101999b37bd10d1d6e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Acrylic Resins - chemistry</topic><topic>Composite Resins - chemistry</topic><topic>Dental Materials - chemistry</topic><topic>Dental Stress Analysis - instrumentation</topic><topic>Dentistry</topic><topic>denture base acrylic resins</topic><topic>Denture Bases</topic><topic>flexural strength</topic><topic>Hardness</topic><topic>Hot Temperature</topic><topic>Humans</topic><topic>impact strength</topic><topic>Materials Testing</topic><topic>Methacrylates - chemistry</topic><topic>Pliability</topic><topic>Polyurethanes - chemistry</topic><topic>Stress, Mechanical</topic><topic>Surface Properties</topic><topic>Temperature</topic><topic>thermocycling</topic><topic>Time Factors</topic><topic>Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Machado, Ana Lucia</creatorcontrib><creatorcontrib>Puckett, Aaron D.</creatorcontrib><creatorcontrib>Breeding, Larry C.</creatorcontrib><creatorcontrib>Wady, Amanda Fucci</creatorcontrib><creatorcontrib>Vergani, Carlos Eduardo</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Gerodontology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Machado, Ana Lucia</au><au>Puckett, Aaron D.</au><au>Breeding, Larry C.</au><au>Wady, Amanda Fucci</au><au>Vergani, Carlos Eduardo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of thermocycling on the flexural and impact strength of urethane-based and high-impact denture base resins</atitle><jtitle>Gerodontology</jtitle><addtitle>Gerodontology</addtitle><date>2012-06</date><risdate>2012</risdate><volume>29</volume><issue>2</issue><spage>e318</spage><epage>e323</epage><pages>e318-e323</pages><issn>0734-0664</issn><eissn>1741-2358</eissn><abstract>doi: 10.1111/j.1741‐2358.2011.00474.x
Effect of thermocycling on the flexural and impact strength of urethane‐based and high‐impact denture base resins
Objective: Mechanical properties of the acrylic resins used for denture fabrication may be influenced by water and temperature. Thus, the aim of this study was to evaluate the effect of thermocycling on the flexural and impact strength of a high‐impact (Lucitone 199) and a urethane‐based denture material (Eclipse).
Materials and methods: Flexural strength (64 × 10 × 3.3 mm) and impact strength (60 × 6 × 4 mm) specimens were made following the manufacturers’ instructions and assigned to two groups (n = 10): control (C) – not thermocycled – and T – thermocycled (5000 cycles between 5 and 55°C). Specimens were submitted to three‐point bending and Charpy impact tests.
Results: Flexural strength (MPa) and impact strength (kJ/m2) data were analysed with two‐way anova (p = 0.05). The flexural strength of material Eclipse (C, 136.5; T, 130.7) was significantly higher than that of resin Lucitone 550 (C, 99.4; T, 90.1). Material Eclipse exhibited significantly higher impact strength (C, 6.9; T, 5.3) than the resin Lucitone 550 (C, 3.5; T, 3.0). For both materials, a significant decrease in flexural and impact strengths was observed when the specimens were thermocycled.
Conclusion: Flexural and impact strengths were higher for Eclipse than for Lucitone 550, in both groups. Thermocycling decreased the flexural and impact strengths of Eclipse and Lucitone 550.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>21453415</pmid><doi>10.1111/j.1741-2358.2011.00474.x</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Acrylic Resins - chemistry Composite Resins - chemistry Dental Materials - chemistry Dental Stress Analysis - instrumentation Dentistry denture base acrylic resins Denture Bases flexural strength Hardness Hot Temperature Humans impact strength Materials Testing Methacrylates - chemistry Pliability Polyurethanes - chemistry Stress, Mechanical Surface Properties Temperature thermocycling Time Factors Water - chemistry |
| title | Effect of thermocycling on the flexural and impact strength of urethane-based and high-impact denture base resins |
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