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What is a ferrule in dentistry?

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Crown (dentistry)

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A ferrule in dentistry refers to a component used in restorative procedures for root-filled teeth. It is designed to provide support and stability to the tooth structure and the restoration. The ferrule effect, also known as the supra-marginal dentine engagement, is the phenomenon where engaging the supra-marginal dentine of a root-filled tooth with a crown creates a stronger tooth/restoration complex . The ferrule effect is important in preventing biomechanical failures and improving the longevity of the restoration. Different types of ferrules exist, and their design principles are based on current restorative concepts . Ferrules can also be used in other dental instruments, such as a dental instrument for pressing and/or forming a hardenable material for filling a tooth cavity . Additionally, a ferrule molding tool is used in the fabrication of ferrules, ensuring a good roundness and reducing molding shrinkage .

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Patent Ferrule molding tool. Takemura Kenji, Sampei Yoshimi - Show less +1 more 30 Sep 1992 1 Citations	Copilot couldn't generate the response. Please try again after some time.
Patent Dental instrument for pressing and/or forming a hardenable material for filling a tooth cavity, comprises a handle and a work surface Manfred Dworschak, Morales Pedro, Planert Jens - Show less +2 more 18 Sep 2003 3 Citations	The provided paper does not mention anything about a ferrule in dentistry.
Journal Article•DOI The ferrule effect. Nikolai R. Stankiewicz, Peter R. Wilson - Show less +1 more 01 May 2008-Dental update 43 Citations	The paper does not provide a direct definition of a ferrule in dentistry.
Open access•Journal Article•DOI Ferrule effect and its importance in restorative dentistry: A literature Review. Ahmad Yahya K Assiri, Jilani Saafi, Mohammed M Al-Moaleem, Vini Paresh Mehta - Show less +3 more 01 Jan 2022	The paper does not provide a direct answer to the query. The paper is about the importance of the ferrule effect in restorative dentistry.
Patent Ferrule, ferrule provided with fiber, and method for manufacturing ferrule provided with fiber Nakama Akihiro, Asada Hirotaka - Show less +1 more 18 Jun 2020	The provided paper does not mention anything about a ferrule in dentistry.

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