Will be held in all subjects (SG and CG) at least 3 periapical radiographs through paralleling technique, for each tooth requiring extraction. The first radiograph will be performed at the time of anamnesis, with conventional radiographic film in order to diagnose the need for extraction and assess the condition of the tooth. The second and third radiographs will be carried out using a digital sensor, at day 7 and day 60, using the digital device Soredex DIGORA Optime®, to evaluate the alveolar bone repair by grayscale concentration captured.