Journal of Osseointegration <h1>Journal of Osseointegration</h1> <p>The aim of the<strong> Journal of Osseointegration</strong> in the Implant Dentistry field is to publish high quality contemporary, timely, innovative, interesting and clinically relevant information that will be used for improvement of the care of our patients. The rapid growth of research and more application of advanced clinical procedures has led us to start this new journey, that we hope will be a journey of success. The objective of all the people involved in this project will be to present the data in an accurate, fair and unbiased way. Each paper will be given the close attention that it merits and only manuscripts with well designed projects, conducted in a manner that follows sound scientific principles will be accepted. Also the rapidity of the reviewing process will be a key goal, this will be ensured by a web based submission and colse supervision on the reviewing process. A concerted effort will be made to shorten the time between submission, correction, acceptance of the manuscript, online publication, and print publication. We aim also for a high standard of technical editing, which serves to ensure the consistency of the content style and the fact that the language should be as unambiguous and clear as possible. Manuscripts dealing with basic research, biomaterials, tissue engineering techniques, clinical research and technical innovations will be accepted. The help of all involved people will be of outstanding relevance in achieving this mission.<br><em>Access to the contents of the Journal of Osseointegration is open and free to all users: this is our small contribution to global exchange of knowledge. Users can read, download, copy, distribute, print, search, or link to the full texts of our articles.</em></p> ©Ariesdue srl, Milan, Italy. Online version powered by PAGEPress Scientific Publications, Pavia, Italy en-US Journal of Osseointegration 2036-4121 <p><strong>PAGEPress</strong> has chosen to apply the&nbsp;<a href="" target="_blank" rel="noopener"><strong>Creative Commons Attribution NonCommercial 4.0 International License</strong></a>&nbsp;(CC BY-NC 4.0) to all manuscripts to be published.</p> Surgical-prosthetic rehabilitation of patients with aggressive periodontitis and immediately loaded implants: a report of two cases <p class="p1"><span class="s1"><strong>Background</strong></span><span class="s2"> Treatment with dental implants is demonstrated to be a predictable procedure to replace lost or defective teeth in patients with a history of chronic and aggressive periodontitis. Although the dental implants are less successful in compromised patients compared to uncompromised patients. </span></p> <p class="p1"><span class="s1"><strong>Case report</strong></span><span class="s2"> In this report, two<span class="Apple-converted-space">&nbsp; </span>cases are described of Generalized Aggressive Periodontitis (GAgP) treated with multidisciplinary management and a two-year follow-up. The two patients received periodontal and prosthetic treatment with immediately loaded implants using a supported surgical computer-planned guide. Dental implants were inserted by means of a flapless procedure, and immediate provisionalizations were put into place. The survival of the implants was evaluated by clinical and radiographic means after two years. Minimal pain and edema on the surgical site were observed. </span></p> <p class="p1"><span class="s1"><strong>Conclusion</strong></span><span class="s2"> The 2 case reports support the benefits of immediate loading with provisional implant-retained fixed prostheses in patients with GAgP.</span></p> J. R. Collins R. H. Lalane G. Ogando M. Nasser G. E. Romanos ##submission.copyrightStatement## 2019-06-14 2019-06-14 11 2 113 121 10.23805/JO.2019.11.02.06 Comparison of accuracy of single-crown generated from digital and conventional impressions: an in vivo controlled trial. <p><strong>Aim :</strong> With the advance of digital technology, intraoral digital impression (DI) technique has become a major trend in prosthodontics with respect to traditional impression (TI) techniques; despite that, very few data are available concerning its accuracy. Thus, the purpose of this study was to compare the effectiveness of DI versus TI considering both marginal and internal gap (MG, IG, respectively) in cobalt-chromium (Co-Cr) single crowns manufactured by mean of computer-aided design and computer-aided manufacturing (CAD/CAM) technology.</p> <p><strong>Material and Methods: </strong>Thirty posterior teeth were considered for this study. For each abutment tooth, sixty and thirty copings were produced with the aid of TI and DI, respectively. Thirty of the sixty copings of the TI-group were then randomly selected to be veneered and cemented onto existing abutments. The space existing between the internal surface of the coping and the abutment tooth was evaluated onto an in vitro replica; the MG and IG were measured by Scanning Electron Microscope. The data were analysed by the Wilcoxon test (1-tailed).</p> <p><strong>Results:</strong> The mean MG was 75.04 μm (SD = 13.12) and 55.01 μm (SD = 7.01) for the TI-group and DI-group, respectively. As regards the mean IGs, the values recorded were of 78.36 μm (SD = 19.66) for the TI-group and 59.20 μm (SD=3.33) for the DI-group. A statistically significant difference was found between two groups (p-value = 0.001).</p> <p><strong>Conclusions:</strong> Copings manufactured from DI showed better MGs and IGs with respect to copings produced from TI. However, both approaches produced clinically acceptable results.</p> A. Di Fiore M. De Francesco C. Monaco E. Stocco P. Vigolo E. Stellini ##submission.copyrightStatement## 2019-06-14 2019-06-14 11 2 107 112 10.23805/JO.2019.11.02.05 Analysis in vitro of the insertion torque of hybrid tapered implants with different types of instrumentation and two clinical cases report <p class="p1"><strong>Aim </strong>The aim of this study was to observe the behavior of the hybrid implants, evaluating the insertion test with different drilling protocols and present two case reports of hybrid implant placed in the upper arch.</p> <p class="p1"><span class="s1"><strong>Materials and methods </strong>For the <em>in vitro</em> study 50 implants were placed in 2 different types of synthetic bone blocks composed of rigid solid polyurethane (high density, type I, and low density, type IV). The implants were divided into five groups (n=10): Group 1 (Test) hybrid/conical implants of 3.75 mm x 13 mm placed in a high density bone block with oversized instrumentation; Group 2 (Control) cutting/cylindrical of 3.75 mm x 13 mm, placed in a high density bone block with regular instrumentation; Group 3 (Test) hybrid/conical implants of 4.3 mm x 13 mm placed in a low density bone block with undersized instrumentation; Group 4 (Test) hybrid/conical implants of 4.3 mm x 13 mm placed in a low density bone block with regular instrumentation; Group 5 (Control) compact/conical implants of 4.3 mm x 13 mm<span class="Apple-converted-space">&nbsp; </span>placed in a low density bone block with regular instrumentation. Two cases are reported of hybrid implants placed in the maxilla with 12-month follow up. </span></p> <p class="p1"><strong>Results</strong> No significant difference was observed between hybrid/conical implants and the control group, according to final placement torque in high and low density bone. However, undersized instrumentation showed a significantly increased final torque placement for hybrid/conical implant.</p> <p class="p1"><span class="s1"><strong>Conclusions </strong>Implant macrostructure, bone instrumentation technique influence the insertion torque for hybrid/conical implants. At the 12-month follow-up the implants were stable.</span></p> G. Thomé S. Pires R. Salatti C. A. Cartelli M. B. de Moura L. C. Trojan ##submission.copyrightStatement## 2019-06-14 2019-06-14 11 2 98 106 10.23805/JO.2019.11.02.04 Abstracts of poster presentations - XXVI Congresso Nazionale CDUO <p>XXVI Congresso Nazionale CDUO -&nbsp;Abstracts of poster presentations</p> Various Authors ##submission.copyrightStatement## 2019-06-14 2019-06-14 11 2 122 475