Restoration of Unusually Shaped Canals With Post Endodontic Treatment: A Review of Progressive Approaches.

Various economic, time-efficient options in endodontic therapy are available for treating wide, flared, and/or unusual canals and re-treating flared canals. Conservation of tooth structure, minimal use of cement, and the strengthening of the core and/or remaining tooth structure when possible are critical treatment objectives. This article discusses new, progressive treatment modalities that minimize the amount of cement and composite resin needed, resulting in the conserving of remaining dentin. These modalities include the anatomic post-core, oval fiber post, individually formed fiber "bundle" post, fiber-augmented post, and accessory post techniques.