A 3-D CAD/CAM Technique in Full-Arch Implant Supported Rehabilitation: the Virtual Im-plant-Prosthetic Procedure (VIPP Technique). A prospective longitudinal study
Aim. The purpose of this study is to evaluate the success of a new Three-Dimensional CAD/CAM processing technique in Full-Arch Implant Supported Rehabilitation of edentulous patients.
Materials and Methods. Healthy patients with edentulous mandible and/or maxilla arch were selected for the present study. The Full-Arch Implant Supported Virtual Protocol has been applied with immediate loading fixed rehabilitation. Effectiveness of digital and surgical planning, marginal Bone Loss, Implant and Prosthetic failure were recorded at 6-and 12 months follow up.
Results. 76 implants were placed in 15 patients, and 15 full arch rehabilitations were delivered. The patient found the smile design previsualization very effective (93%), the guided surgery very effective (94%), and the immediate loading and temporization very effective (92%). No implant were lost (survival rate = 100 %). At the 6-months radiographic evaluation, perimplant crestal bone loss averaged 0.56 ± 0.12 mm for maxillary implants (n = 64 implants), 0.59 ± 0.16 for mandibular implants (n = 12 implants) and 12-months perimplant crestal bone loss averaged 0.67 ± 0.11 mm for maxillary implants (n = 64 implants) and 0.69 ± 0.16 for mandibular implants (n = 12 implants) . Two unscrewing episodes and one provisional prosthesis fracture were detected. No paresthesia and no prosthetic complications in definitive prostheses were registered in the whole sample.
Conclusions. Within these limitations, the present study reported that the Virtual Implant-Prosthetic Procedure could be a satisfactory treatment in edentulous patients.
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