Browsing by Author "Sotiropoulos, Evangelos"

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Comprehensive Treatment of Severe Periodontal and Periimplant Bone Destruction Caused by Iatrogenic Factors
(2018) Abdullah, Taha; Sotiropoulos, Evangelos
Introduction: Dental implant success requires placement after periodontal therapy, with adequate bone volume, plaque control, primary stability, control of risk factors, and use of well-designed prostheses. ,is report describes the surgical and prosthetic management of a patient with severe iatrogenic periodontal/periimplant bone destruction. Methods: A 55-year-old female smoker with fixed partial dentures (FPDs) supported on teeth and implants presented with oral pain, swelling, bleeding, and a 10-year history of multiple implant placements and implants/prosthesis failures/replacements. Radiographs showed severe bone loss, subgingival caries, and periapical lesions. All implants and teeth were removed except implants #4 and #10 which served to retain an interim maxillary restoration. Bone defects were covered with nonresorbable dPTFE membranes. In the mandible, three new implants were placed and loaded immediately with a bar-retained temporary denture. Results: Seven months postoperatively, the bone defects were regenerated, and three additional mandibular implants were placed. All mandibular implants were splinted and loaded with a removable overdenture. Conclusions: In this case, periimplant infection and tissue destruction resulted from the lack of periodontal treatment/maintenance and failure to use evidence-based surgical and loading protocols. Combination therapy resolved the disease and the patient’s severe discomfort while providing immediate function and an aesthetic solution.
The use of a customized mounting guide for Implant-Prosthetic Restoration of the Fully Edentulous Arch
(2017) Sotiropoulos, Evangelos; Yoon, Tae Ho; Abuzayda, Moosa
Abstract: Reconstruction of fully edentulous arches with implant-retained dentures requires thorough planning and precise registration of the interocclusal relationship, to achieve a successful treatment outcome. This technical report describes three representative approaches from a cohort of 89 fully edentulous arches in 69 patients who were treated with the described mounting guide technique. A technique of using a duplicated denture as a guide is described, which allows for the accurate transfer of the occlusal relationship and vertical dimensions, while facilitating the full-arch restoration process with implantretained fi xed or removable dentures and reducing the number of required in-office sessions.