SUMMARYPurpose. An adequate bone volume for complete circumferential coverage of the implants is very important for obtaining a long-term success of oral implants. To avoid these problems various membranes and biomaterials were used, but soft tissue pressure could cause a membrane collapse toward the defect. The present work describes a ridge augmentation with titanium mesh shaped by adapting it to a bone defect in aesthetic areas. Materials and methods. Three patients with alveolar crest defects received three implants (Bone System, Milano, Italy) and the defects were filled with bone chips. The defects were covered with a titanium micromesh above which was positioned a resorbable membrane (Biogide, Geistlich, Wohlhusen, Switzerland). Results. At the re-entry procedure the titanium micromesh appeared to be surrounded by a dense connective tissue with no clinical signs of inflammation. Clinically in all patients, no residual bone defects were observed, and a significant increase of the alveolar width or height was found. Conclusions. In conclusion the clinical results of the present study show that most certainly the space for the bone regeneration is one of the most critical factors in the success of the regenerative techniques.

SUMMARYPurpose. The surgical-orthodontic treatment of impacted maxillary canine (IMC) remains a challenge to today's clinicians. The aim of the present paper is to describe an unconventional treatment of IMC with insertion of implant into the retained canine and 3 years follow-up. Case report. A 55-year-old female patient attended to rehabilitate her maxillary left canine site. An unconventional approach was proposed to the patient. A large diameter tapered implant (Ø 5 x 18 mm) was inserted (Nobel Active, Kolten, Swisse). An immediate loading prosthetic rehabilitation was performed. After checking for implant stability the prosthetic steps were carried out and a single crown was delivered with Procera system. Conclusion. The patient was happy of this kind of single non-invasive session for treating IMC. At the 3-year control, the implant did not show any mobility or signs of peri-implantitis clinically or radiographically. In addiction patient was satisfied of aesthetic results.

The most common derivation of stem cells for regenerative dentistry is from the adipose tissue. There are conditions in which the levy adipose cannot be easily achieved, or where large amount of grafting is not needed. For this purpose, the possibility of selecting stromal stem cells directly from the lax subcutaneous connective tissue, preferably of the head region, would allow a technical simplification.

SUMMARYPurpose. In this study we wanted to observe the improvement in the healing of periodontal tissues in a group of diabetic patients treated with traditional methods compared to another group treated with the addition of oxygen. The potential of oxygen has long been known in the field of plastic surgery, where it is used to treat burns and skin lesions. Materials and methods. This study consists in a split mouth study which involved 30 patients. We carefully treated them with periodontal therapy using manual and mechanical instrumentation. Then, we applied oxygen in half mouth according to randomization list. Finally we checked up patients after some weeks. Results. Our results highlight that all areas treated with oxygen application healed more rapidly and better than no treated areas. Conclusions. All in all, we have demonstrated that oxygen can improve the outcome of non-surgical periodontal treatment in diabetic subjects.

The cement thickness can influence the SBS of the adhesively luted posts, in our setting, the best values were obtained with a thickness of 100 μm.