Effect of three types of mouth rinses and human saliva on microhardness of packable and nanocomposite resins (In vitro study).
Journal of Baghdad College of Dentistry
View Archive Info| Field | Value | |
| Title |
Effect of three types of mouth rinses and human saliva on microhardness of packable and nanocomposite resins (In vitro study).
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| Creator |
Al Hyali, Nagham A.
, Haitham AL-Azzawi J. |
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| Description |
Background: The purpose of this an in vitro study was to evaluate and compare the influence of three types of mouth rinses (alcohol- containing, alcohol-free and chlorhexidine-containing mouth rinses) and human saliva on microhardness of two types of composite resins (packable and nanofilled composite). Materials and Methods: Total numbers of 64 specimens were prepared, using molds specially fabricated for this study and divided according to type of composite resins used, into two groups: 32 specimens made from packable P60 and 32 specimens made from Filtek Supreme XT nanocomposite. Then each 32 specimens subdivided into 4 subgroups according to treatment solutions used (Listerine, oral-B, chlorhexidine containing mouth rinses and saliva). The specimens of each subgroup was immersed, after curing, in distilled water for 24hr at 37°C then subjected to microhardness measurement for baseline readings determination using Vickers microhardness tester. Then each subgroup was immersed in 20 ml of treatment solutions and incubated at 37°C for 24 hr and re-subjected to microhardness measurement. The change in hardness value was calculated for each sample. The resulting data were statistically analyzed using ANOVA and t- test at 0.05 significance level. Results: The results revealed that, all mouth rinses tested decreased the hardness of both tested resin-composites and non significant reduction in microhardness with saliva. Conclusion: Both alcohol-containing & alcohol-free mouth rinses cause, highly significant reduction in microhardness of composite resins while saliva causes non significant reduction in microhardness. Chlorhexidine-contaianing mouths rinses highly significant decrease the hardness of nanocomposite and significantly decrease the hardness of packable composite. |
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| Publisher |
College of dentistry/ University of baghdad
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| Date |
2017-01-30
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
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| Identifier |
http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1560
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| Source |
Journal of Baghdad College of Dentistry; Vol 23 No Special Is (2011); 25-29
2311-5270 1680-0087 |
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| Language |
en
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| Rights |
Copyright (c) 2017 Journal of Baghdad College of Dentistry
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