Saving Natural Root Pieces with Post-and-Core and Polymer Reinforced Crowns: A Clinical Case Series

Background: Teeth with minimal remaining coronal structure are often considered candidates for extraction and implant placement. However, extensive evidence shows that endodontically treated teeth restored with an adequate ferrule, post-and-core support, and cuspal coverage exhibit long-term success comparable to implants [1–6] . Objective: To describe three clinical situations in which severely damaged crowns with sound roots were restored using post-and-core build-ups and polymer-reinforced CAD-CAM crowns, avoiding extraction and implant therapy. Cases: Case 1: A fractured maxillary anterior tooth with near-total coronal loss was restored using a metal stock post, composite core, and a polymer-reinforced crown, achieving esthetics and function. Case 2: A mandibular posterior tooth with negligible supragingival structure was rehabilitated using post-and-core reinforcement and a full-coverage polymer-reinforced crown, enabling long-term occlusal loading. Case 3: A full-mouth rehabilitation case with generalized advanced coronal destruction but healthy roots was managed through strategic endodontics, post-and-core build-ups, and full-arch polymer-reinforced restorations, preserving natural dentition while restoring function and esthetics. Conclusion: When roots are periodontally sound and a ferrule effect can be established, post-and-core restorations supported by modern adhesive protocols and shock-absorbing polymer-reinforced prostheses offer a biologically conservative, durable, and cost-efficient alternative to extraction and implants. The decision to preserve or remove a tooth must integrate periodontal, endodontic, occlusal, and prosthetic factors—highlighting that “hopeless-looking” crowns do not necessarily equate to hopeless teeth.