ArticleCureus2026
Successful Implant Rehabilitation Following Failed Root Canal Treatment Using Ridge Preservation and Delayed Implant Placement: A Case Report.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
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Abstract
Dental implants have become a predictable treatment option for replacing teeth with an unfavorable prognosis. When extraction of a failed endodontically treated tooth is indicated, preservation of the alveolar ridge is essential to minimize post-extraction bone resorption and facilitate future implant placement. This case report describes the successful rehabilitation of a mandibular first molar following extraction, ridge preservation, delayed implant placement, and definitive prosthetic restoration using a digital workflow. A 68-year-old male patient presented with a previously endodontically treated mandibular first molar (tooth #19) exhibiting persistent periapical pathology and an unfavorable long-term prognosis. Following clinical and radiographic evaluation, the tooth was atraumatically extracted. Ridge preservation was performed using deproteinized bovine bone mineral (DBBM) (techBiomat bone®, Technology in Biomaterials S.L., Barcelona, Spain) covered with a resorbable collagen membrane, and primary closure was achieved using 3-0 resorbable catgut sutures. After a three-month healing period, adequate bone regeneration was confirmed clinically and radiographically, allowing placement of a 5.0 × 14 mm Straumann dental implant with a healing abutment. Following an additional three months to allow complete osseointegration and soft tissue maturation, the restorative phase was initiated using a digital intraoral scan with a scan body to fabricate a definitive implant-supported crown. Final clinical and radiographic evaluation demonstrated successful osseointegration, healthy peri-implant soft tissues, appropriate marginal adaptation, stable crestal bone levels, satisfactory occlusion, and favorable esthetic and functional outcomes. This case highlights the clinical predictability of ridge preservation using DBBM and a resorbable collagen membrane prior to delayed implant placement and demonstrates the successful integration of contemporary digital restorative techniques for implant-supported rehabilitation in an older adult male patient.
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