Sinus Lift

<body> <p>New surgical approach for the sinus lifting with special drills</p> bone grafting dental implants dental surgery dentistry elevation of the sinus higmoro antrum implant dentistry maxilla maxillary sinus lift schneider membrane elevation floor augmentation graft lifting instruments surgery drills An inadequate bucco-lingual and apico-occlusal dimension of the maxillary sinus, is a frequent anatomical restriction for the prosthetic rehabilitation of the posterior region of the upper jaw. The loss of teeth together with a marginal and cortical resorption produces a reduction in the alveolar bone height: as a matter of fact, after every extraction, the periosteum of the Schneider's membrane shows an increasing osteoclastic activity and, meantime, there'' a resorption of alveolar bone following the loss of marginal bone. As a direct consequence of this process, the distance between the highest point of the ridge and the sinus floor decreases and is not suitable for the insertion of implants. Various techniques have been proposed in order to accomplish the necessary bony dimension for the insertion of implants: 1) The Guided Bone Regeneration (GBR) of the crestal bone that is still quite unpredictable and unsatisfactory and 2) the widespread sinus lift technique with autologous and eterologous grafts. For many years the surgical technique used for this operation involved a lateral approach , that caused quite a trauma to the patient and required certain technical skills form the surgeon because of its difficulties. In 1994 Summers introduced a new technique with a crestal approach, reducing the problems linked to this surgical procedure. What I' m shoving here is a step forward of the crestal approach introduced by Summers, because the exposure of the sinus membrane is gained through the use of atraumatic drills of increasing lengths which highly decrease the risk of accidental laceration of the membrane itself. Furthermore the sinus lift together with the insertion of the implants can be performed even in present of a reduced alveolar bone height. Still, this kind of surgery requires a good experience in implantology. Dott. Cosci Ferdinando </body>