Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins
Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear d...
Ausführliche Beschreibung
Autor*in: |
Saryu Arora [verfasserIn] S K Khindaria [verfasserIn] Sushant Garg [verfasserIn] Sanjay Mittal [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2011 |
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Übergeordnetes Werk: |
In: Contemporary Clinical Dentistry - Wolters Kluwer Medknow Publications, 2010, 2(2011), 3, Seite 182-187 |
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Übergeordnetes Werk: |
volume:2 ; year:2011 ; number:3 ; pages:182-187 |
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Link aufrufen |
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DOI / URN: |
10.4103/0976-237X.86452 |
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Katalog-ID: |
DOAJ021002983 |
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520 | |a Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. | ||
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10.4103/0976-237X.86452 doi (DE-627)DOAJ021002983 (DE-599)DOAJ87c8d7a5e44a4a99a568f0d80a47f2e5 DE-627 ger DE-627 rakwb eng RK1-715 Saryu Arora verfasserin aut Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. Heat cure acrylic resin dimensional changes complete denture Dentistry S K Khindaria verfasserin aut Sushant Garg verfasserin aut Sanjay Mittal verfasserin aut In Contemporary Clinical Dentistry Wolters Kluwer Medknow Publications, 2010 2(2011), 3, Seite 182-187 (DE-627)64057355X (DE-600)2582352-8 09762361 nnns volume:2 year:2011 number:3 pages:182-187 https://doi.org/10.4103/0976-237X.86452 kostenfrei https://doaj.org/article/87c8d7a5e44a4a99a568f0d80a47f2e5 kostenfrei http://www.contempclindent.org/article.asp?issn=0976-237X;year=2011;volume=2;issue=3;spage=182;epage=187;aulast=Arora kostenfrei https://doaj.org/toc/0976-237X Journal toc kostenfrei https://doaj.org/toc/0976-2361 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2011 3 182-187 |
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10.4103/0976-237X.86452 doi (DE-627)DOAJ021002983 (DE-599)DOAJ87c8d7a5e44a4a99a568f0d80a47f2e5 DE-627 ger DE-627 rakwb eng RK1-715 Saryu Arora verfasserin aut Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. Heat cure acrylic resin dimensional changes complete denture Dentistry S K Khindaria verfasserin aut Sushant Garg verfasserin aut Sanjay Mittal verfasserin aut In Contemporary Clinical Dentistry Wolters Kluwer Medknow Publications, 2010 2(2011), 3, Seite 182-187 (DE-627)64057355X (DE-600)2582352-8 09762361 nnns volume:2 year:2011 number:3 pages:182-187 https://doi.org/10.4103/0976-237X.86452 kostenfrei https://doaj.org/article/87c8d7a5e44a4a99a568f0d80a47f2e5 kostenfrei http://www.contempclindent.org/article.asp?issn=0976-237X;year=2011;volume=2;issue=3;spage=182;epage=187;aulast=Arora kostenfrei https://doaj.org/toc/0976-237X Journal toc kostenfrei https://doaj.org/toc/0976-2361 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2011 3 182-187 |
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10.4103/0976-237X.86452 doi (DE-627)DOAJ021002983 (DE-599)DOAJ87c8d7a5e44a4a99a568f0d80a47f2e5 DE-627 ger DE-627 rakwb eng RK1-715 Saryu Arora verfasserin aut Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. Heat cure acrylic resin dimensional changes complete denture Dentistry S K Khindaria verfasserin aut Sushant Garg verfasserin aut Sanjay Mittal verfasserin aut In Contemporary Clinical Dentistry Wolters Kluwer Medknow Publications, 2010 2(2011), 3, Seite 182-187 (DE-627)64057355X (DE-600)2582352-8 09762361 nnns volume:2 year:2011 number:3 pages:182-187 https://doi.org/10.4103/0976-237X.86452 kostenfrei https://doaj.org/article/87c8d7a5e44a4a99a568f0d80a47f2e5 kostenfrei http://www.contempclindent.org/article.asp?issn=0976-237X;year=2011;volume=2;issue=3;spage=182;epage=187;aulast=Arora kostenfrei https://doaj.org/toc/0976-237X Journal toc kostenfrei https://doaj.org/toc/0976-2361 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2011 3 182-187 |
allfieldsGer |
10.4103/0976-237X.86452 doi (DE-627)DOAJ021002983 (DE-599)DOAJ87c8d7a5e44a4a99a568f0d80a47f2e5 DE-627 ger DE-627 rakwb eng RK1-715 Saryu Arora verfasserin aut Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. Heat cure acrylic resin dimensional changes complete denture Dentistry S K Khindaria verfasserin aut Sushant Garg verfasserin aut Sanjay Mittal verfasserin aut In Contemporary Clinical Dentistry Wolters Kluwer Medknow Publications, 2010 2(2011), 3, Seite 182-187 (DE-627)64057355X (DE-600)2582352-8 09762361 nnns volume:2 year:2011 number:3 pages:182-187 https://doi.org/10.4103/0976-237X.86452 kostenfrei https://doaj.org/article/87c8d7a5e44a4a99a568f0d80a47f2e5 kostenfrei http://www.contempclindent.org/article.asp?issn=0976-237X;year=2011;volume=2;issue=3;spage=182;epage=187;aulast=Arora kostenfrei https://doaj.org/toc/0976-237X Journal toc kostenfrei https://doaj.org/toc/0976-2361 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2011 3 182-187 |
allfieldsSound |
10.4103/0976-237X.86452 doi (DE-627)DOAJ021002983 (DE-599)DOAJ87c8d7a5e44a4a99a568f0d80a47f2e5 DE-627 ger DE-627 rakwb eng RK1-715 Saryu Arora verfasserin aut Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. Heat cure acrylic resin dimensional changes complete denture Dentistry S K Khindaria verfasserin aut Sushant Garg verfasserin aut Sanjay Mittal verfasserin aut In Contemporary Clinical Dentistry Wolters Kluwer Medknow Publications, 2010 2(2011), 3, Seite 182-187 (DE-627)64057355X (DE-600)2582352-8 09762361 nnns volume:2 year:2011 number:3 pages:182-187 https://doi.org/10.4103/0976-237X.86452 kostenfrei https://doaj.org/article/87c8d7a5e44a4a99a568f0d80a47f2e5 kostenfrei http://www.contempclindent.org/article.asp?issn=0976-237X;year=2011;volume=2;issue=3;spage=182;epage=187;aulast=Arora kostenfrei https://doaj.org/toc/0976-237X Journal toc kostenfrei https://doaj.org/toc/0976-2361 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 2 2011 3 182-187 |
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In Contemporary Clinical Dentistry 2(2011), 3, Seite 182-187 volume:2 year:2011 number:3 pages:182-187 |
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Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. 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comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins |
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Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins |
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Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. |
abstractGer |
Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. |
abstract_unstemmed |
Context: Heat cured acrylic resins undergo dimensional changes during polymerization. Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands. |
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Comparative evaluation of linear dimensional changes of four commercially available heat cure acrylic resins |
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Dimensional changes which occur in the heat cure acrylic resins are shrinkage and expansion which affects the fit of the denture and occlusal relationship. Aims: The purpose of this study was to access the linear dimensional changes of four heat cure acrylic resins before and after curing and compare the changes among four different acrylic brands. Materials and Methods: Twenty four patients irrespective of age and sex were taken and four commercially available brands were procured. After the teeth arrangement on the mandibular trial denture, two pins were fixed in central fossae of first molar on both sides and one pin in the cingulum of left central incisor. Meliodent heat cure acrylic resin was used in Group A; Trevalon heat cure acrylic resin was used in Group B; Triplex heat cure acrylic resin was used in Group C and Vertex heat cure acrylic resin was used in Group D. Linear measurements of the trial wax up before and after curing and before and after finishing and polishing were measured and compared. Collected data was analyzed with analysis of variance and ′t′ test at 95% level of confidence (P=0.05). Results: The maximum percentage changes were seen in cases of Group A (Meliodent) followed by Group B, Group C and Group D (Trevalon, Triplex and Vertex). Meliodent showed the highest percentage change i.e. 1.18% and Vertex showed least percentage change of 0.37 %. Conclusions: Shrinkage occurred after curing and after finishing and polishing, which varies significantly with the four commercially available heat cure acrylic resins. Among the four different brands of heat cure acrylic resin Group D (Vertex) had the least linear dimensional changes after curing and after finishing and polishing, so that D (Vertex) could be the material of choice for fabrication of complete denture among the four brands.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Heat cure acrylic resin</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">dimensional changes</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">complete denture</subfield></datafield><datafield tag="653" ind1=" " ind2="0"><subfield code="a">Dentistry</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">S K Khindaria</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="0" ind2=" "><subfield code="a">Sushant Garg</subfield><subfield code="e">verfasserin</subfield><subfield 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