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Volume 16 , Issue 3
May/June 2003

Pages 225228

The Use of an Existing Cast Post and Core as an Anchor for Extrusive Movement

Ami Smidt, DMD, MSc, BMedSc/Eyal Venezia, DMD, MSc, BMedSc

PMID: 12854782

Purpose: This article describes an original solution for a tooth with an existing cast post and core placed subgingivally. Materials and Methods: The tooth was erupted rapidly using a simplified and easy technique that incorporates fiberotomy during the process of movement. Results: The distal finish line of the core, which was subgingival before movement onset, was elevated, allowing the placement of crown margins on sound tooth structure. Clinical evaluation of the tooth after a period of 4 weeks, during which a provisional acrylic resin crown was used for retention, showed no need for corrective surgery, and fabrication of a metal-ceramic crown (Captek) was begun. Conclusion: When failing to place crown margins on sound tooth structure, the existence of a cast post and core in such a nonrestorable tooth may serve as an anchor in the process of rapid extrusion. Following the need to respect the biologic width and fulfill the obligatory ferrule effect circumferentially, this extrusive treatment modality was applied to meet high treatment standards. Int J Prosthodont 2003;16:225228.

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