The authors present a case study in which a virtual model was created from a patient's cone beam computed tomographic scans that simulated a dentoalveolar defect associated with periapical pathosis. With the information provided by the virtual model, the tooth was extracted, and both defect and alveolus were virtually grafted. The virtual amount calculated was similar to the amount used in the actual site. Schlagwörter: cone beam computed tomography, grafting material, virtual grafting, virtual models