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Dental Research Journal، جلد ۱۲، شماره ۳، صفحات ۰-۰
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عنوان انگلیسی Shear bond strength of orthodontic color-change adhesives with different light-curing times
چکیده انگلیسی مقاله Background: The purpose of this study was to evaluate the effect of light-curing time on the shear bond strength (SBS) of two orthodontic color-change adhesives (CCAs). Materials and Methods: A total of 72 extracted premolars were randomly assigned into 6 groups of 12 teeth each. Subsequent to primer application, a metal bracket was bonded to the buccal surface using an orthodontic adhesive. Two CCAs (Greengloo and Transbond Plus) were tested and one conventional light-cured adhesive (Resilience) served as control. For each adhesive, the specimens were light-cured for two different times of 20 and 40 s. All the specimens underwent mechanical testing using a universal testing machine to measure the SBS. Adhesive remnant index (ARI) was used to assess the remnant adhesive material on the tooth surface. All statistical analyses were performed using SPSS software. The signifi cance level for all statistical tests was set at P ≤ 0.05. Results: The SBSs of the tested groups were in the range of 14.05-31.25 MPa. Greengloo adhesive showed the highest SBS values when light-cured for 40 s, and Transbond Plus adhesive showed the lowest values when light-cured for 20 s. ARI scores of Transbond Plus adhesive were signifi cantly higher than those of controls, while other differences in ARI values were not signifi cant. Conclusion: Within the limitations of his study, decreasing the light-curing time from 40 to 20 s decreased the SBS of the tested adhesives; however, this decline in SBS was statistically signifi cant only in Transbond Plus adhesive Key Words: Adhesive system, bond strength, dental adhesive, light curing, orthodontic bonding, shear bond strength
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نویسندگان مقاله شاهین بیانی | shahin bayani


امیررضا قاسمی | amirreza ghassemi


صفا منافی | safa manafi


محدثه دلاوریان دلاوریان | mohadeseh delavarian delavarian


نشانی اینترنتی http://drj.mui.ac.ir/index.php/drj/article/view/1702
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زبان مقاله منتشر شده en
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