Journal of Osseointegration Journal of Osseointegration en-US (Cristina Calchera) (Tiziano Taccini) Thu, 21 Dec 2017 10:57:51 +0100 OJS 60 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## Thu, 21 Dec 2017 00:00:00 +0100 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## Mon, 18 Dec 2017 00:00:00 +0100 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## Mon, 18 Dec 2017 00:00:00 +0100 Ectopic tooth involving the orbital floor and infraorbital nerve <p class="p1"><strong>Aim </strong>Ectopic eruption of a tooth within the dental arch is often noticed in clinical practice and is well documented in the literature, while ectopic eruption outside the dental arch (as in the maxillary sinus) is rare. Due to its rarity and lack of consensus over management, its incidence needs to be further defined. Surgical approach, with cyst enucleation, has been considered the treatment of choice. In the present study, a case of an ectopic maxillary third molar<span class="Apple-converted-space">&nbsp; </span>with chronic purulent maxillary sinusitis is presented. The aim of this report is to describe the extraction of an ectopic third molar carried out through a nasal endoscopic procedure.</p> D. Barbieri, P. Capparè, G. Gastaldi, M. Trimarchi ##submission.copyrightStatement## Mon, 18 Dec 2017 00:00:00 +0100