The ferrule effect.
نویسندگان
چکیده
UNLABELLED When the supra-marginal dentine of a root-filled tooth is engaged by a crown, it may create a stronger tooth/restoration complex. This has been termed the ferrule effect. This paper reviews the current evidence for this effect and examines the influence various post and core materials have on it. Means of achieving a ferrule are discussed and the importance of planning for failure is considered. CLINICAL RELEVANCE Provision for the ferrule effect when restoring root-filled teeth with a post-retained crown may optimize the strength of the restored tooth.
منابع مشابه
تأثیر Ferrule effect روی ثبات بیومکانیکی دندان‌های بازسازی شده با پست و کور و کراون: مروری بر مقالات
Background and Aims: Preserving intact coronal and radicular tooth structure is considered to be crucial for the optimal biomechanical behavior of restored teeth .The ferrule effect has been extensively studied and still remains controversial from many perspectives. The purpose of this study was to summarize the results of different issues related to the ferrule effect and published in journa...
متن کاملEffect of ferrule on fracture resistance in endodontically treated teeth that were restored with bonded posts and cores
Effect of ferrule on fracture resistance in endodontically treated teeth that were restored with bonded posts and cores Dr. MH. Salari * - Dr. E. Jalalian * - Dr. S. Soleimani ** * Assistant Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Azad University (Tehran). ** Dentist. Abstract Background and Aim: A dowel in an endodontically treated tooth could transfer occlusal forces in...
متن کاملEffect of different ferrule designs on the fracture resistance and failure pattern of endodontically ceramic crowns
www.scielo.br/jaos O This study investigated the effect of different ferrule heights on endodontically ! ! "# Ivoclar-Vivadent) luted with self-polymerized resin cement (Multilink, Ivoclar Vivadent) while the coronal section was restored with hybrid composite core build-up material (Tetric Ceram, Ivoclar-Vivadent), which received all-ceramic crown. Different ferrule heights were investigated: 1...
متن کاملIn Vitro Evaluation of Ferrule Effect and Depth of Post Insertion on Fracture Resistance of Fiber Posts
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,...
متن کاملFracture Resistance of Teeth Restored with Various Post Designs and Cemented with Different Cements: An In-vitro Study
BACKGROUND Studies have been carried out on endodontically treated teeth restored with and without ferrule, and influence of the cementing medium, to evaluate their effect on fracture resistance. This study was conducted on 28 freshly extracted maxillary central incisors. Specimens were restored with two types of post designs, and cemented with two different luting agents, and tested for fractu...
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ورودعنوان ژورنال:
- Dental update
دوره 35 4 شماره
صفحات -
تاریخ انتشار 2008