Implant supported prosthesis with guided bone regeneration and indirect sinus augmentation procedure: A case report.

Abstract Introduction: Guided Bone Regeneration (GBR) approach aims to regenerate osseous defects predictably by enabling osteogenic cell populations originating from the parent bone to occupy the osseous wound. In implant therapy, there are two ways to use GBR: simultaneously during implant insertion (simultaneous approach) and stagedly beforehand to heighten the alveolar ridge or improve ridge morphology. Subantral augmentation, was created to add more bone to the posterior maxilla. Indirect sinus augmentation procedure involves the direct manipulation of the Schneiderian membrane by using round end drills of proper diameter. Case description: A male patient wanted to rehabilitate the upper posterior tooth in both the quadrants and complete lower arch. The patient opted for fixed dental therapy. The plausible causes and precautions were explained to the patients and a cone beam computerized tomography (CBCT) was advised. Hematological examinations were done. Keeping the bone dimensions in consideration fixed implant prosthesis was planned and executed. Immediate extractions were planned in the lower arch and subsequent implant placement was done. Discussion: Edentulous maxilla with inadequate spongy bone and D3-D4 density bone around maxillary sinus region are handled with direct or indirect sinus augmentation procedure in combination with GBR around the placed implants. In the present case indirect sinus augmentation was approached keeping in mind around 6-8mm residual alveolar bone in the sinus regions