The Effect of Repeated Microwave Irradiation on the Dimensional Stability of a Specific Acrylic Denture Resin
Purpose To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W. Materials and Methods Twenty standardized denture bases were fabricated using a PMMA resin. Poi...
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| Veröffentlicht in: | Journal of prosthodontics 2015-01, Vol.24 (1), p.25-31 |
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| container_title | Journal of prosthodontics |
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| creator | Wagner, David A. Pipko, Donald J. |
| description | Purpose
To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W.
Materials and Methods
Twenty standardized denture bases were fabricated using a PMMA resin. Points of measurement were marked on each denture base with a standardized template, and the distances between points were recorded using a digital microscope. The denture bases were randomly placed into two experimental groups of 10 bases each. Individual denture bases were placed into a glass beaker containing 200 ml of room temperature deionized water and then exposed to either 700 or 420 W of microwave radiation for 3 minutes. The denture bases were allowed to cool to room temperature, and measurements between points were recorded. This process was carried out for two microwave periods with measurements being completed after each period. The data were then analyzed for any significant changes in distances between points using a Student's t‐test.
Results
All denture bases experienced 1.0 to 2.0 mm or approximately 3% linear dimensional change after each period of microwaving. Results were significant with all t‐tests having values of p < 0.05.
Conclusion
This report showed that the denture bases deformed significantly under experimental conditions at either 700 W for 3 minutes in 200 ml of water or 420 W for 3 minutes in 200 ml of water. |
| doi_str_mv | 10.1111/jopr.12203 |
| format | Article |
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To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W.
Materials and Methods
Twenty standardized denture bases were fabricated using a PMMA resin. Points of measurement were marked on each denture base with a standardized template, and the distances between points were recorded using a digital microscope. The denture bases were randomly placed into two experimental groups of 10 bases each. Individual denture bases were placed into a glass beaker containing 200 ml of room temperature deionized water and then exposed to either 700 or 420 W of microwave radiation for 3 minutes. The denture bases were allowed to cool to room temperature, and measurements between points were recorded. This process was carried out for two microwave periods with measurements being completed after each period. The data were then analyzed for any significant changes in distances between points using a Student's t‐test.
Results
All denture bases experienced 1.0 to 2.0 mm or approximately 3% linear dimensional change after each period of microwaving. Results were significant with all t‐tests having values of p < 0.05.
Conclusion
This report showed that the denture bases deformed significantly under experimental conditions at either 700 W for 3 minutes in 200 ml of water or 420 W for 3 minutes in 200 ml of water.</description><identifier>ISSN: 1059-941X</identifier><identifier>EISSN: 1532-849X</identifier><identifier>DOI: 10.1111/jopr.12203</identifier><identifier>PMID: 25082075</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Acrylic Resins - chemistry ; Acrylic Resins - radiation effects ; Acrylic Resins - therapeutic use ; complete ; dental ; Dental Materials - chemistry ; Dental Materials - radiation effects ; Dental Materials - therapeutic use ; Dentistry ; Denture Bases ; Dentures ; Heating ; Humans ; Microwaves ; Polymethyl Methacrylate - chemistry ; Polymethyl Methacrylate - radiation effects ; Polymethyl Methacrylate - therapeutic use ; prosthesis ; warpage</subject><ispartof>Journal of prosthodontics, 2015-01, Vol.24 (1), p.25-31</ispartof><rights>2014 by the American College of Prosthodontists</rights><rights>2014 by the American College of Prosthodontists.</rights><rights>2015 American College of Prosthodontists</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4653-13d3b9438971a546536ae1ef4536e79681055044f64f09bc2025a0b3116420743</citedby><cites>FETCH-LOGICAL-c4653-13d3b9438971a546536ae1ef4536e79681055044f64f09bc2025a0b3116420743</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%2Fjopr.12203$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjopr.12203$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25082075$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wagner, David A.</creatorcontrib><creatorcontrib>Pipko, Donald J.</creatorcontrib><title>The Effect of Repeated Microwave Irradiation on the Dimensional Stability of a Specific Acrylic Denture Resin</title><title>Journal of prosthodontics</title><addtitle>Journal of Prosthodontics</addtitle><description>Purpose
To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W.
Materials and Methods
Twenty standardized denture bases were fabricated using a PMMA resin. Points of measurement were marked on each denture base with a standardized template, and the distances between points were recorded using a digital microscope. The denture bases were randomly placed into two experimental groups of 10 bases each. Individual denture bases were placed into a glass beaker containing 200 ml of room temperature deionized water and then exposed to either 700 or 420 W of microwave radiation for 3 minutes. The denture bases were allowed to cool to room temperature, and measurements between points were recorded. This process was carried out for two microwave periods with measurements being completed after each period. The data were then analyzed for any significant changes in distances between points using a Student's t‐test.
Results
All denture bases experienced 1.0 to 2.0 mm or approximately 3% linear dimensional change after each period of microwaving. Results were significant with all t‐tests having values of p < 0.05.
Conclusion
This report showed that the denture bases deformed significantly under experimental conditions at either 700 W for 3 minutes in 200 ml of water or 420 W for 3 minutes in 200 ml of water.</description><subject>Acrylic Resins - chemistry</subject><subject>Acrylic Resins - radiation effects</subject><subject>Acrylic Resins - therapeutic use</subject><subject>complete</subject><subject>dental</subject><subject>Dental Materials - chemistry</subject><subject>Dental Materials - radiation effects</subject><subject>Dental Materials - therapeutic use</subject><subject>Dentistry</subject><subject>Denture Bases</subject><subject>Dentures</subject><subject>Heating</subject><subject>Humans</subject><subject>Microwaves</subject><subject>Polymethyl Methacrylate - chemistry</subject><subject>Polymethyl Methacrylate - radiation effects</subject><subject>Polymethyl Methacrylate - therapeutic use</subject><subject>prosthesis</subject><subject>warpage</subject><issn>1059-941X</issn><issn>1532-849X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUlPHDEQha0oUSDAhR-ALOWCIjV47eWIWCbABEYsYm6Wu6csPPSG7Q6Zfx93BjhwiGWpSqWvnvTqIbRLyQGN73DZ9e6AMkb4J7RJJWdJLor559gTWSSFoPMN9M37JSGUypx-RRtMkpyRTG6i5u4R8KkxUAXcGXwDPegAC_zLVq570b8BnzunF1YH27U4_hD5E9tA6-NA1_g26NLWNqzGdY1ve6issRU-qtyqjvUE2jA4iMrettvoi9G1h53XuoXuz07vjn8m0-vJ-fHRNKlEKnlC-YKXheB5kVEtx1GqgYIRsYGsSPNoTBIhTCoMKcqKESY1KTmlqYi2BN9C-2vd3nXPA_igGusrqGvdQjd4RVPJBCekSCP6_QO67AYXnY2UyAWTXGSR-rGm4lW8d2BU72yj3UpRosYQ1BiC-hdChPdeJYeygcU7-nb1CNA18GJrWP1HSl1cz27eRJP1jvUB_rzvaPek0oxnUj1cTdTDZHZ1Ob2Yqxn_C0_ansc</recordid><startdate>201501</startdate><enddate>201501</enddate><creator>Wagner, David A.</creator><creator>Pipko, Donald J.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</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>7QP</scope><scope>K9.</scope><scope>7X8</scope></search><sort><creationdate>201501</creationdate><title>The Effect of Repeated Microwave Irradiation on the Dimensional Stability of a Specific Acrylic Denture Resin</title><author>Wagner, David A. ; Pipko, Donald J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4653-13d3b9438971a546536ae1ef4536e79681055044f64f09bc2025a0b3116420743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Acrylic Resins - chemistry</topic><topic>Acrylic Resins - radiation effects</topic><topic>Acrylic Resins - therapeutic use</topic><topic>complete</topic><topic>dental</topic><topic>Dental Materials - chemistry</topic><topic>Dental Materials - radiation effects</topic><topic>Dental Materials - therapeutic use</topic><topic>Dentistry</topic><topic>Denture Bases</topic><topic>Dentures</topic><topic>Heating</topic><topic>Humans</topic><topic>Microwaves</topic><topic>Polymethyl Methacrylate - chemistry</topic><topic>Polymethyl Methacrylate - radiation effects</topic><topic>Polymethyl Methacrylate - therapeutic use</topic><topic>prosthesis</topic><topic>warpage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wagner, David A.</creatorcontrib><creatorcontrib>Pipko, Donald J.</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>Calcium & Calcified Tissue Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of prosthodontics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wagner, David A.</au><au>Pipko, Donald J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Effect of Repeated Microwave Irradiation on the Dimensional Stability of a Specific Acrylic Denture Resin</atitle><jtitle>Journal of prosthodontics</jtitle><addtitle>Journal of Prosthodontics</addtitle><date>2015-01</date><risdate>2015</risdate><volume>24</volume><issue>1</issue><spage>25</spage><epage>31</epage><pages>25-31</pages><issn>1059-941X</issn><eissn>1532-849X</eissn><abstract>Purpose
To determine the dimensional stability of a poly(methyl methacrylate) (PMMA) acrylic resin when subjected to multiple sessions of repeated microwave irradiation at power settings of 700 and 420 W.
Materials and Methods
Twenty standardized denture bases were fabricated using a PMMA resin. Points of measurement were marked on each denture base with a standardized template, and the distances between points were recorded using a digital microscope. The denture bases were randomly placed into two experimental groups of 10 bases each. Individual denture bases were placed into a glass beaker containing 200 ml of room temperature deionized water and then exposed to either 700 or 420 W of microwave radiation for 3 minutes. The denture bases were allowed to cool to room temperature, and measurements between points were recorded. This process was carried out for two microwave periods with measurements being completed after each period. The data were then analyzed for any significant changes in distances between points using a Student's t‐test.
Results
All denture bases experienced 1.0 to 2.0 mm or approximately 3% linear dimensional change after each period of microwaving. Results were significant with all t‐tests having values of p < 0.05.
Conclusion
This report showed that the denture bases deformed significantly under experimental conditions at either 700 W for 3 minutes in 200 ml of water or 420 W for 3 minutes in 200 ml of water.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>25082075</pmid><doi>10.1111/jopr.12203</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 1059-941X |
| ispartof | Journal of prosthodontics, 2015-01, Vol.24 (1), p.25-31 |
| issn | 1059-941X 1532-849X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1652430096 |
| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Acrylic Resins - chemistry Acrylic Resins - radiation effects Acrylic Resins - therapeutic use complete dental Dental Materials - chemistry Dental Materials - radiation effects Dental Materials - therapeutic use Dentistry Denture Bases Dentures Heating Humans Microwaves Polymethyl Methacrylate - chemistry Polymethyl Methacrylate - radiation effects Polymethyl Methacrylate - therapeutic use prosthesis warpage |
| title | The Effect of Repeated Microwave Irradiation on the Dimensional Stability of a Specific Acrylic Denture Resin |
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