Management of a complication with Partial Extraction Therapy: A Clinical Case Letter and Clinical Recommendations

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On the Ten-Year Success in the Application of Partial Extraction Therapy: A Systematic Review

Hürzeler presented the socket-shield technique (SST) more than 10 years ago. The partial extraction therapy (PET), a collective concept of utilizing the patient’s own tooth root to preserve the periodontium and peri-implant tissue, has been remarkably developed. PET comprises a group of novel techniques for post-extraction implant placement. Several modifications of PET and simultaneous implant placement have been presented since its inception. Since its origin, several alterations have been employed in the methodology of partial extraction of the root and the simultaneous implant placement. A repeatable, predictable protocol is needed to provide tooth replacement in esthetic dentistry. Moreover, a standardized procedure provides a good framework for clinicians to report data relating to the technique with procedural consistency. This review aims to illustrate a reproducible and systematic protocol for the PET techniques with immediate implant placement at the aesthetic zone. The most used technique is the socket-shield technique, which is potentially offers promising results, minimizing the necessity for invasive bone grafts round implants in the aesthetic area, clinical data to support this is very inadequate. The limited research data existing is cooperated by a deficiency of well-designed prospective randomized controlled investigations. The present case studies and techniques are of actual incomplete technical value. Retrospective studies published in limited records but are of inconsistent plan. At this point, it is indistinct whether the socket-shield technique will offer a stable long-time outcome or not

Partial Extraction Therapy: A Review of Human Clinical Studies

Partial extraction therapy (PET) is a collective concept encompassing a group of surgical techniques including socket shield, root membrane, proximal shield, pontic shield and root submergence. PET utilizes the patient’s own root structure to maintain blood supply derived from the periodontal ligament complex in order to preserve the periodontium and peri-implant tissues during restorative and implant therapy. This review aims to summarize current knowledge regarding PET techniques and present a comprehensive evaluation of human clinical studies in the literature. Two independent reviewers conducted electronic and manual searches until January 1 st , 2021 in the following electronic bibliographic databases: PubMed, EMBASE, and Dentistry & Oral Sciences Source. Grey literature was searched to identify additional candidates for potential inclusion. Articles were screened by a group of 4 reviewers using the Covidence software and synthesized. Systematic search of the literature yielded 5,714 results. 64 articles were selected for full-text assessment, of which, 42 eligible studies were included in the review. 12 studies were added to the synthesis after manual search of the reference lists. A total of 54 studies were examined in this review. In sum, PET techniques offer several clinical advantages: 1) preservation of buccal bone post-extraction and limitation of alveolar ridge resorption 2) mitigation of the need for invasive ridge augmentation procedures 3) soft tissue dimensional stability and high esthetic outcomes. Further randomized clinical studies with larger sample sizes are needed to improve understanding of the long-term clinical outcomes of PET.