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Volume 43 , Issue 4
July/August 2023
Pages 443–449

Partial Extraction Therapy (Part 1): Applications in Full-Arch Dental Implant Therapy

Mark Bishara, DDS/Naif Sinada, DMD/David T. Wu, DMD/Richard J. Miron, DMD, MSc, PhD/Dwayne Karateew, DDS/Howard Gluckman, BDS, MChD, PhD/Maurice Salama, DMD

DOI: 10.11607/prd.5859

Partial extraction therapy (PET) is a set of surgical techniques that preserve a portion of the patient’s own root structure to maintain blood supply derived from the periodontal ligament complex in order to maintain the periodontium and peri-implant tissues during restorative and implant therapy. PET includes the socket shield technique (SST), proximal shield technique (PrST), pontic shield technique (PtST), and root submergence technique (RST). In a traditional hybrid technique, total extraction and full-arch dental implant therapy often require significant bone reduction and palatal/lingual implant placement. In addition, postextraction preservation of the ridge architecture is a major challenge. This case series demonstrates the use of a combination of PET techniques with digital implant planning and guided implant surgery to achieve highly esthetic outcomes in full-arch implant therapy.

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