The tooth extractions will be performed by the same dentist with experience in minor oral surgery, in the Special Care dentistry center of the Dental School of University of Sao Paulo. The subjects of both groups who agreeded to participate will be submitted by conventional extraction technique, which is the same technique for any other patient of the Center. The participants will receive the same intervention of tooth extraction of patients who are not enrolled in the study, as following: after the anesthetic block will be held sindesmotomy, taking off the periodontal, tooth dislocation with the aid of lifts and removal of the tooth with forceps. The surgical technique will be modified depending on the condition of the tooth in the alveolus, performing dental section or osteotomy when necessary. Finally, curettage of the socket will be held and a simple suture with silk thread 3-0.