Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study
Background and Objective: The purpose of this study was laboratory comparison of microhardness values in one kind of composite core at complete building tooth with incremental and Bulk placement techniques. Subjects and Methods: Ten cylindrical samples of clearfil photo core-light cure (Kuraray/Japa...
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| Format: | Article |
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Ahvaz Jundishapur University of Medical Sciences
2012-03-01
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| Series: | Majalah-i ̒ilmī pizishkī-i jundī/shapūr |
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| Online Access: | http://journals.ajums.ac.ir/components4.php?rQV=8BEMApDdyFGdz9lZ8BUNApDZJRnblJXYw9lZ8BEM1YDQ6QWStVGdp9lZ8BEOApDZJxWY0J3bQxWYuJXdvp2XmxHQyATNApDZJ52bpR3Yh9lZ |
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| author | Faramarz Zakavi Somayeh Hosseini Tabatabaei Fatemeh Bahramnejed Soheila Sadeghian Kaveh Khalaj Mahdi Pourmahdi borujeni |
| author_facet | Faramarz Zakavi Somayeh Hosseini Tabatabaei Fatemeh Bahramnejed Soheila Sadeghian Kaveh Khalaj Mahdi Pourmahdi borujeni |
| author_sort | Faramarz Zakavi |
| collection | DOAJ |
| description | Background and Objective: The purpose of this study was laboratory comparison of microhardness values in one kind of composite core at complete building tooth with incremental and Bulk placement techniques. Subjects and Methods: Ten cylindrical samples of clearfil photo core-light cure (Kuraray/Japan), (Translucent, Single Shade) composite were prepared up to 9mm in Insulin syringes. Half of them were built with incremental placement technique by 2 mm increments and the other half were built with bulk placement technique. Light curing was done with output irradiance of 650 mw/cm2 for 40 seconds. Samples were cut in longitudinal position and were mounted in Epoxy resin. Vicker's microhardness was measured from surface of every samples in the 1,2,3,4,5,6,7,8,9 mm depths. Statistical Analyses were done with two-way ANOVA (P<0.05).Results: The micro hardness values of equivalent depths in bulk placement technique were more than incremental placement. There were not significant diffenences among the hardness of 1 to 9 mm depths, in two placement techniques. Conclusion: In order to achieve the suitable curing depth in every composite with regard to its composition and color, we should follow the light curing standard conditions of that special composite. |
| format | Article |
| id | doaj-art-3bd48970a60e464094e8518a02bc0eba |
| institution | Kabale University |
| issn | 2252-052X 2252-0619 |
| language | fas |
| publishDate | 2012-03-01 |
| publisher | Ahvaz Jundishapur University of Medical Sciences |
| record_format | Article |
| series | Majalah-i ̒ilmī pizishkī-i jundī/shapūr |
| spelling | doaj-art-3bd48970a60e464094e8518a02bc0eba2025-08-20T03:58:22ZfasAhvaz Jundishapur University of Medical SciencesMajalah-i ̒ilmī pizishkī-i jundī/shapūr2252-052X2252-06192012-03-011112734Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro StudyFaramarz ZakaviSomayeh Hosseini TabatabaeiFatemeh BahramnejedSoheila SadeghianKaveh KhalajMahdi Pourmahdi borujeniBackground and Objective: The purpose of this study was laboratory comparison of microhardness values in one kind of composite core at complete building tooth with incremental and Bulk placement techniques. Subjects and Methods: Ten cylindrical samples of clearfil photo core-light cure (Kuraray/Japan), (Translucent, Single Shade) composite were prepared up to 9mm in Insulin syringes. Half of them were built with incremental placement technique by 2 mm increments and the other half were built with bulk placement technique. Light curing was done with output irradiance of 650 mw/cm2 for 40 seconds. Samples were cut in longitudinal position and were mounted in Epoxy resin. Vicker's microhardness was measured from surface of every samples in the 1,2,3,4,5,6,7,8,9 mm depths. Statistical Analyses were done with two-way ANOVA (P<0.05).Results: The micro hardness values of equivalent depths in bulk placement technique were more than incremental placement. There were not significant diffenences among the hardness of 1 to 9 mm depths, in two placement techniques. Conclusion: In order to achieve the suitable curing depth in every composite with regard to its composition and color, we should follow the light curing standard conditions of that special composite.http://journals.ajums.ac.ir/components4.php?rQV=8BEMApDdyFGdz9lZ8BUNApDZJRnblJXYw9lZ8BEM1YDQ6QWStVGdp9lZ8BEOApDZJxWY0J3bQxWYuJXdvp2XmxHQyATNApDZJ52bpR3Yh9lZComposite Placement TechniquesHardness TestsComposite ResinDegree of Conversion |
| spellingShingle | Faramarz Zakavi Somayeh Hosseini Tabatabaei Fatemeh Bahramnejed Soheila Sadeghian Kaveh Khalaj Mahdi Pourmahdi borujeni Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study Majalah-i ̒ilmī pizishkī-i jundī/shapūr Composite Placement Techniques Hardness Tests Composite Resin Degree of Conversion |
| title | Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study |
| title_full | Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study |
| title_fullStr | Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study |
| title_full_unstemmed | Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study |
| title_short | Comparison of Microhardness of a Composite Core in Two Different Placement Techniques - An Invitro Study |
| title_sort | comparison of microhardness of a composite core in two different placement techniques an invitro study |
| topic | Composite Placement Techniques Hardness Tests Composite Resin Degree of Conversion |
| url | http://journals.ajums.ac.ir/components4.php?rQV=8BEMApDdyFGdz9lZ8BUNApDZJRnblJXYw9lZ8BEM1YDQ6QWStVGdp9lZ8BEOApDZJxWY0J3bQxWYuJXdvp2XmxHQyATNApDZJ52bpR3Yh9lZ |
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