An up to 17-year follow-up retrospective analysis of a minimally invasive, flapless approach: 18 945 implants in 7783 patients.

Background: This study investigates gender, age, jaw, implant position, loading protocol (immediate vs delayed), smoking, and type of surgery (punch vs flap) as influential factors of implant survival in a large patient collective.

Purpose: To evaluate the survival rates of implants in patients using a mucoperiosteal punch for flapless implantation in the majority of cases in order to evaluate its medical efficacy and safety.

Materials And Methods: Between 1994 and 2015 all patients with complete data treated at the Wienerberg Dental Clinic, Vienna, Austria, were included and statistically analyzed in Cox proportional hazard (PH) models.

[Statistical aynalysis of tumour cases at the University Department of Maxillo-Facial Surgery, Vienna].

39,606 pathological reports issuing from the Department of Pathology, University of Vienna, during the years 1936, 1956 and 1976 were examined retrospectively. The Department of Maxillo-facial Surgery had referred 3.2% of the specimens.

[Water-tight closure of spinal dura with a new clot suture technique (author's transl)].

A new clot-suturing Technique (using high-concentration fibrinogen solutions) for water-tight closure of the dura is reported. Six dogs underwent laminectomy of the thoracic spine with medial longitudinal incision in the chordal dura. After the dural split had been sealed with natural tissue adhesive and closure of the wound in layers, the animals were sacrificed at intervals of 1 to 21 days postoperatively and the chordal segments involved were removed and histologically examined.