An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin
Iranian product, Acropars autopolymerizing acrylic resin is nowadays widely used in"ndental prostheses. Dimensional change is a common problem among Iranian made acrylic resins in making"ncustom trays and record bases, seems to be more than the similar foreign products. In order to...
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| Format: | Article |
| Language: | fas |
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Tehran University of Medical Sciences
2004-02-01
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| Series: | Journal of Dental Medicine |
| Subjects: | |
| Online Access: | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/5366.pdf&manuscript_id=5366 |
| _version_ | 1811230680609193984 |
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| author | Ebadian B Mosharaf R Ebrahimi M |
| author_facet | Ebadian B Mosharaf R Ebrahimi M |
| author_sort | Ebadian B |
| collection | DOAJ |
| description | Iranian product, Acropars autopolymerizing acrylic resin is nowadays widely used in"ndental prostheses. Dimensional change is a common problem among Iranian made acrylic resins in making"ncustom trays and record bases, seems to be more than the similar foreign products. In order to achieve a"ntechnique for making a record base with minimum dimensional changes, more research is necessary."nPurpose: The aim of the present study was to determine a curing technique for Iranian autopolymerizing"nacrylic resins leading to the least polymerization shrinkage and the most adaptation between record bases and"nstone casts."nMaterials and Methods: In this experimental study, 40 stone casts were divided into four 10- member group."nFor each group, polymerization shrinkage was determined at three points with one of the following"ntechniques: Bench curing, Curing under a coat of petroleum jelly , Curing in a monomer saturated"natmosphere, Curing in boiled water. Adaptation between bases and stone casts were measured at three points"n(the right and left crests of the ridge and the midpalatal region) with a light-measuring microscope. To analyze"nthe data, Variance analysis was used."nResults: The monomer atmosphere technique showed the minimum dimensional changes and the samples in"nboiled water group had the maximum dimensional changes. No statistical differences were observed between"nother groups."nConclusion: More adaptation between record bases and stone casts was observed in monomer atmosphere"npolymerization technique. The differences between bench curing and curing under a coat of petroleum jelly"ntechniques with this method were not statistically significant. Therefore, it is suggested for making base"nrecords with maximum adaptation. |
| first_indexed | 2024-04-12T10:32:24Z |
| format | Article |
| id | doaj.art-2f0abf530c444446bf68d4e7402b4b33 |
| institution | Directory Open Access Journal |
| issn | 1024-641X 2008-2444 |
| language | fas |
| last_indexed | 2024-04-12T10:32:24Z |
| publishDate | 2004-02-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Dental Medicine |
| spelling | doaj.art-2f0abf530c444446bf68d4e7402b4b332022-12-22T03:36:48ZfasTehran University of Medical SciencesJournal of Dental Medicine1024-641X2008-24442004-02-011645661An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resinEbadian BMosharaf REbrahimi MIranian product, Acropars autopolymerizing acrylic resin is nowadays widely used in"ndental prostheses. Dimensional change is a common problem among Iranian made acrylic resins in making"ncustom trays and record bases, seems to be more than the similar foreign products. In order to achieve a"ntechnique for making a record base with minimum dimensional changes, more research is necessary."nPurpose: The aim of the present study was to determine a curing technique for Iranian autopolymerizing"nacrylic resins leading to the least polymerization shrinkage and the most adaptation between record bases and"nstone casts."nMaterials and Methods: In this experimental study, 40 stone casts were divided into four 10- member group."nFor each group, polymerization shrinkage was determined at three points with one of the following"ntechniques: Bench curing, Curing under a coat of petroleum jelly , Curing in a monomer saturated"natmosphere, Curing in boiled water. Adaptation between bases and stone casts were measured at three points"n(the right and left crests of the ridge and the midpalatal region) with a light-measuring microscope. To analyze"nthe data, Variance analysis was used."nResults: The monomer atmosphere technique showed the minimum dimensional changes and the samples in"nboiled water group had the maximum dimensional changes. No statistical differences were observed between"nother groups."nConclusion: More adaptation between record bases and stone casts was observed in monomer atmosphere"npolymerization technique. The differences between bench curing and curing under a coat of petroleum jelly"ntechniques with this method were not statistically significant. Therefore, it is suggested for making base"nrecords with maximum adaptation.http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/5366.pdf&manuscript_id=5366Auto polymerizing acrylic resin |
| spellingShingle | Ebadian B Mosharaf R Ebrahimi M An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin Journal of Dental Medicine Auto polymerizing acrylic resin |
| title | An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin |
| title_full | An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin |
| title_fullStr | An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin |
| title_full_unstemmed | An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin |
| title_short | An investigation on the effects of different polymerization techniques on dimensional changes ofAcropars, an Iranian autopolymerizing acrylic resin |
| title_sort | investigation on the effects of different polymerization techniques on dimensional changes ofacropars an iranian autopolymerizing acrylic resin |
| topic | Auto polymerizing acrylic resin |
| url | http://journals.tums.ac.ir/PdfMed.aspx?pdf_med=/upload_files/pdf/5366.pdf&manuscript_id=5366 |
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