Objective: To analyze the graft donor site (posterior region of the mandible) by means of cone-beam volumetric tomographies to assess boneremodeling, verifying the degree of morbidity with regard to this parameter. Methods: The sample was composed of twenty individuals, irrespective of age, gender and ASA I and ASA II surgical risk classification. Three volume computed tomographies were performed: one before surgery, another seven days after surgery and the last 180 days after surgery. Image

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... uisition by volumetric cone-beam tomography and the computer program Dental Slice were used to make the measurements. Results: Statistics showed that there was significant bone remodeling. Although there are several concerns about the graft donor sites, no data were obtained in the literature, about the assessment of bone remodeling of the donor site. Conclusion: Mean remodeling in the posterior region of the mandible, assessed 180 days after graft removal is 81.3%, on an average, andmorbidity in the posterior donor site of the mandible has been small, when compared with the other donor sites, both intra-oral and extra-oral, according to the data in the specific literature.