Journal of Osseointegration Journal of Osseointegration ©Ariesdue srl, Milano, Italy. Online version powered by PAGEPress Scientific Publications, Pavia, Italy en-US Journal of Osseointegration 2036-4121 A 3-D CAD/CAM Technique in Full-Arch Implant Supported Rehabilitation: the Virtual Im-plant-Prosthetic Procedure (VIPP Technique). A prospective longitudinal study <p><em>Aim. </em>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.</p> <p><em>Materials and Methods. </em>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.</p> <p>&nbsp;<em>Results. </em>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.</p> <p>&nbsp;<em>Conclusions. </em>Within these limitations, the present study reported that the Virtual Implant-Prosthetic Procedure could be a satisfactory treatment in edentulous patients.</p> Francesca Cattoni G. Gastaldi E. Gherlone M. Manacorda F. Ferrini F. Bova R. Vinci F. Cattoni ##submission.copyrightStatement## 2018-03-01 2018-03-01 10 1 10.23805/jo.2018.10.01.01 Immediate transformation of full lower dentures into fixed implant-supported superstructures by intraoral welding <p class="p1"><strong>Aim </strong>Intraoral welding has been introduced as a means to fabricate a rigid implant-splinting metal framework supporting immediate implant prostheses.</p> <p class="p1"><span class="s1"><strong>Methods </strong>This method can also be applied for the immediate transformation of a removable lower full prosthesis, with inadequate retention and stability, into a fixed implant supported rehabilitation. In this way it was possible to preserve the correct esthetic and occlusal parameters that had been previously established and to which the patient has been accustomed. The prosthesis is modified by removing the denture flanges. The remaining part of the denture teeth, are joined together with the acrylic resin representing the gingiva and forming a bare dental arch composition. After implant placement, the Ti framework is fabricated by initial intraoral welding, followed by extra-oral completion. The denture is then stabilized with acrylic resin onto the framework intraorally. The prosthesis is completed with additional acrylic resin in the laboratory, as hybrid prosthesis to be delivered to the patient. </span></p> <p class="p1"><strong>Conclusion </strong>The procedure improves the quality of life of<span class="Apple-converted-space">&nbsp; </span>patients, is cost effective and is not time-consuming.</p> D Tripodakis D Tripodaki A P Tripodakis ##submission.copyrightStatement## 2017-12-21 2017-12-21 10 1 326 31. 10.23805/jo.2017.09.04.04 Digital registration of peri-implant transmucosal portion and pontic area in the esthetic zone <p class="p1"><span class="s1"><strong>Aim </strong>There is a general agreement on the importance of soft tissues conditioning to obtain optimal results in case of teeth replacement supported by dental implants in the esthetic zone. Soft tissue healing should be guided with temporary restorations which are useful to condition soft tissues, as they are relatively easy to modify "chair side" by adding or reducing pressure until a satisfactory soft tissue scalloping has been achieved. Once the desired result is obtained, it is very important to replicate this profile in the master model used for the fabrication of the final prosthesis. The aim of this paper is to describe a simple protocol developed by the authors. </span></p> <p class="p1"><span class="s1"><strong>Materials and methods </strong>The new technique for the registration of the trans-mucosal area is described and the steps for its replication with a digital workflow are illustrated through a case report. The final restoration was designed as a monolithic zirconia framework (produced with a milling machine) with feldspathic porcelain veneering limited to the buccal surface. The occlusal surface replicated the one of the provisional. The protocol included the digital duplicates of the emergence profile and the conditioned soft tissues.</span></p> <p class="p1"><span class="s1"><strong>Results and conclusion</strong> The protocol developed by the authors entails a totally digital workflow and results are more predictable.</span></p> P. Venezia F. Torsello R. Cavalcanti E. Casiello M. Chiapasco ##submission.copyrightStatement## 2017-12-18 2017-12-18 10 1 312 6 10.23805/jo.2017.09.04.01 The efficiency of using advanced PRF-xenograft mixture around immediate implants in the esthetic zone: a randomized controlled clinical trial <p class="p1"><strong>Aim </strong>Immediate implant placement in fresh extraction sockets is an accepted treatment modality and for better predictable outcomes the resultant peri-implant gap should be grafted. Many grafting materials are available; in this study, a xenograft<span class="Apple-converted-space">&nbsp; </span>was used with Advanced-Platelet-Rich Fibrin (A-PRF) as a supplement to tissue regeneration procedures. The aim of this study was to evaluate clinically and radiographically the efficiency of using A-PRF-xenograft mixture around immediate implants in the esthetic zone.</p> <p class="p1"><strong>Materials and methods </strong>For this randomized controlled clinical trial, 18 patients requiring extraction of maxillary anterior teeth and immediate implant placement were selected. They were randomly divided into two groups: the study group, where the peri-implant gap was filled with A-PRF-xenograft mixture, and the control group, where the gap was filled with xenograft alone. The variables studied were probing depth, implant stability, marginal bone height and bone density; the follow-up period was 9 months. For statistical analysis, independent and paired t-tests were used.</p> <p class="p1"><strong>Results </strong>Improvements were seen regarding all variables with no significant differences noticed during follow-up, except for implant stability which showed statistically significant differences.</p> <p class="p1"><strong>Conclusion </strong>The results highlighted the promising effects of A-PRF-xenograft mixture on bone and soft tissue healing around immediate implants in the esthetic zone.</p> S. Kalash N. Aboelsaad M. Shokry J. Choukroun ##submission.copyrightStatement## 2017-12-18 2017-12-18 10 1 317 22 10.23805/jo.2017.09.04.02