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Avicenna Journal of Dental Research، جلد ۴، شماره ۲، صفحات ۵۳-۵۹
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| عنوان فارسی |
Microleakage of Class V Compomer and Light-cured Glass-ionomer Restorations under Load Cycling: An in Vitro Investigation |
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| چکیده فارسی مقاله |
Statement of the problem : Tooth restorations are exposed to stresses which produce marginal gaps resulting in microleakage. Purpose In this study, microleakage of light-cured glass-ionomer and compomer class V restorations was evaluted and compared under cyclic loading Materials and Methods In this exprimental study, class V cavities were prepared on the buccal surfaces of maxillary premolars (n=40). The teeth were randomly divided into two equal groups. Samples in one group were restored with Compoglass and those in the other group were restored with Fuji II LC. All the samples were thermocycled for 2500 cycles. Each group was subjected to cyclic loading (10000 cycles). Dye peneteration method was used for samples. Finally, microleakage of the restorations was evaluated under a stereomicroscope at ×20. Data were analyzed with chi-squared test. The confidance level was set at 95% (α=5%). Results : Microleakage was observed at 55% of restoration margins with both materials, with more leakage in the Compoglass group. The results showed no statically significant differences between the two groups (P>0.05). In addition, no significant differences were seen in microleakage between gingival and occlusal margins (P=0.64 and P=0.7, respectively). Conclusion Microleakage of Compoglass and Fuji II LC restorations was not different at margins under cyclic loading |
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| کلیدواژه‌های فارسی مقاله |
Microleakage، Compomers، Glass Ionomer Cements، Load Cycling |
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| عنوان انگلیسی |
Microleakage of Class V Compomer and Light-cured Glass-ionomer Restorations under Load Cycling: An in Vitro Investigation |
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| چکیده انگلیسی مقاله |
Statement of the problem : Tooth restorations are exposed to stresses which produce marginal gaps resulting in microleakage. Purpose In this study, microleakage of light-cured glass-ionomer and compomer class V restorations was evaluted and compared under cyclic loading Materials and Methods In this exprimental study, class V cavities were prepared on the buccal surfaces of maxillary premolars (n=40). The teeth were randomly divided into two equal groups. Samples in one group were restored with Compoglass and those in the other group were restored with Fuji II LC. All the samples were thermocycled for 2500 cycles. Each group was subjected to cyclic loading (10000 cycles). Dye peneteration method was used for samples. Finally, microleakage of the restorations was evaluated under a stereomicroscope at ×20. Data were analyzed with chi-squared test. The confidance level was set at 95% (α=5%). Results : Microleakage was observed at 55% of restoration margins with both materials, with more leakage in the Compoglass group. The results showed no statically significant differences between the two groups (P>0.05). In addition, no significant differences were seen in microleakage between gingival and occlusal margins (P=0.64 and P=0.7, respectively). Conclusion Microleakage of Compoglass and Fuji II LC restorations was not different at margins under cyclic loading |
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| کلیدواژه‌های انگلیسی مقاله |
Microleakage, Compomers, Glass Ionomer Cements, Load Cycling |
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| نویسندگان مقاله |
z خاموردی | z khamverdi
associate professor, dental research center, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
y صادقی | y sadeghi
post-graduate student, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
t امیدی پور | t omidipoor
post-graduate student, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
f نصر | f nasr
post-graduate student, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran.
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
sh کسرایی | sh kasraei
associate professor, dental research center, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran.; associate professor, dental research center, department of operative dentistry, dental faculty, hamadan university of medical sciences, hamadan, iran. , 989123481767
سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (Hamadan university of medical sciences)
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| نشانی اینترنتی |
http://www.avicennajdr.com/index.php?page=article&article_id=19833 |
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