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In Vitro Evaluation of Ferrule Effect and Depth of Post Insertion on Fracture Resistance of Fiber Posts
المؤلفون المشاركون
Sannino, Gianpaolo
Schiavetti, R.
المصدر
Computational and Mathematical Methods in Medicine
العدد
المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-6، 6ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2012-12-02
دولة النشر
مصر
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
Purpose.
The analysis of the complex model of fiber post and ferrule is given and studied in this paper.
A novel approach and a solution to the evaluation of stress of post and core system within the ferrule effect are proposed.
Methods.
Sixty freshly extracted premolars were selected for the study.
The following experimental groups were therefore defined (n=10): (1) 5 mm, (2) 7 mm, (3) 9 mm, (4) ferrule-5 mm, (5) ferrule-7 mm, and (6) ferrule-9 mm.
Preshaping drills (C) were used to prepare the root canals at 5, 7, and 9 mm in depth.
In specimens of groups 3–6 a circumferential collar of tooth structure of 2 mm in height.
Fluorocore 2 core build-up material (I) was used for fiber post luting.
With the same material, a buildup of 2 mm in height was created.
A controlled compressive load (crosshead speed: 0.75 mm/min) was applied by means of a stainless steel stylus (Ø 1 mm) at the coronal end of the post extruding out of the root.
Results.
In all the tests the level of significance was set at P<0.05 .
Significantly higher fracture strengths were measured in the presence of a ferrule effect.
In groups 1, 2, and 3 (ferrule group), the mean fracture values were, respectively, 163,8 N, 270,9 N, and 254,7 N.
These data are higher and statistically significantly different when compared with the three groups 4, 5, and 6 (no-ferrule group), in which the values obtained were, respectively, 40,5 N, 41,7 N, and 44,9 N.
Conclusion.
The ferrule effect in the endodontically treated teeth positively affects the fracture strength of the fiber post.
Conversely, post depth insertion did not affect the resistance to fracture.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Schiavetti, R.& Sannino, Gianpaolo. 2012. In Vitro Evaluation of Ferrule Effect and Depth of Post Insertion on Fracture Resistance of Fiber Posts. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-500405
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Schiavetti, R.& Sannino, Gianpaolo. In Vitro Evaluation of Ferrule Effect and Depth of Post Insertion on Fracture Resistance of Fiber Posts. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-500405
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Schiavetti, R.& Sannino, Gianpaolo. In Vitro Evaluation of Ferrule Effect and Depth of Post Insertion on Fracture Resistance of Fiber Posts. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-500405
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-500405
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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