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Bone Ring Allograft: Digitally Guided Placement in the Anterior Esthetic Area. A Retrospective Case Series

机译:Bone Ring Allograft: Digitally Guided Placement in the Anterior Esthetic Area. A Retrospective Case Series

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摘要

This case series demonstrates a surgical technique consisting of a digitally planned and guided placement of a bone ring allograft and implant in the anterior esthetic zone. Eight consecutive patients with horizontal and vertical defects in the anterior maxilla underwent augmentation with a commercially available bone ring allograft and simultaneous implant placement using two digital guides. After 6 to 8 months, implants were uncovered and restored with a screw-retained prosthesis. Follow-up periods ranged from 8 to 24 months. All eight implants met predefined success criteria with no adverse events. Radiographic measurements demonstrated stable peri-implant bone levels 1 year after implantation, with bone loss ranging from 0.0 to 1.4 mm. All patients were satisfied with the total treatment time, postsurgical healing, and final esthetic outcome. This case series describes a one-stage procedure in which a bone ring allograft and implant are simultaneously placed for treatment of a severely defective ridge in the anterior maxilla. The technique appears to be reliable for use in the esthetic zone, with minimal first-year loss of peri-implant bone. In combination with a digital guide, accurate implant and bone ring placement can be achieved, resulting in reduced chair time and fewer surgical procedures for the patient. Int J Periodontics Restorative Dent 2021;41:865-872. doi: 10.11607/prd.5237

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