The process of bone resorption and pneumatization of the maxillary sinus are phenomena related to tooth loss in the posterior–superior area, which at present increase the difficulty mentioned rehabilitation area. However, there are treatment options for this condition as are, among others, the elevation of the maxillary sinus floor with particulated bone indicated for small bone defects exposed to low mechanical stress, and alveolar ridge augmentation with block grafts to reconstruct large areas of bone loss due to its stability. Both techniques use different types of bone and donor areas, with autologous bone which has better properties. Usually the sinus floor elevation is the most widely used surgical technique, often neglecting in your selection, increasing the intermaxillary space and the subsequent lack of aesthetics in the final rehabilitation. It is proposed to confront the use of the technique of alveolar ridge augmentation with autologous bone block technique with respect to the lifting of the maxillary sinus floor with autogenous particulate bone to reconstruct posterior–superior alveolar severely resorbed. We present two clinical cases of atrophic jaws surgically treated with each of the techniques. The evaluation was performed clinically and radiographically in four times, immediate postoperative, week, month and three months. Clinically observed better aesthetic result in the prosthetic field case treated with bone graft block, while both showed an increase in radiographic bone height of 10 mm. Therefore, block bone graft is considered the best option for aesthetic and functional reconstruction of posterior–superior alveolar with severe resorption.

Conflict of interest: None declared.