Indirect sinus floor elevation technique with simultaneous implant placement without using bone grafts

摘要

Context: Maxillary posterior region is a problem area for the placement of implants. The advanced resorption of alveolar bone is combined with an increase in pneumatization of maxillary sinus because of higher intra-antral pressure, giving rise to severely atrophied alveolar ridges with reduced bone height. Materials and Methods: A total of 26 implants were placed in 21 patients using indirect sinus lift with simultaneous implant placement without using bone grafts. Intra-oral periapical radiographs were taken to determine residual bone height, endosinus bone (ESB), and crestal bone level. Results: All the implants were clinically and radiographically stable at the end of 6 months follow-up. All the implants showed ESB gain, with mean being 1.97 mm and 1.99 mm on mesial and distal sides, respectively. Conclusion: The findings of this study indicate that successful osseointegration is predictable using osteotome sinus floor elevation without bone graft. Spontaneous new bone formation seemed to be expected with implants placed using indirect sinus lift.