查看文章

Rehabilitation of patients with endosseous implants in the posterior maxilla poses a challenge as a result of sinus pneumatization and ridge atrophy. Sinus augmentation has been established to be a reliable procedure to facilitate implant therapy. However, despite the predictability of the techniques and biomaterials employed in sinus graft procedures, intra-operative complications still occur leading to increased surgical time, abortion of the surgery, post-operative infections and loss of implant. Based on the clinical findings and literature review, a hierarchical decision tree to minimize intra-operative complication is proposed. Several host-related factors, which can influence the outcome of the procedure, are identified. The factors are health status of the sinus, size and location of the endosseous anastomosis, lateral wall thickness, membrane thickness, remaining residual bone height, and presence of sinus floor cortication.