Changes of Soft and Hard Tissues After Alveolar Ridge Preservation: Freeze-dried Bone Allograft vs. L-PRF Clot

Inclusion Criteria: * Subjects with molars or premolars indicated for extraction. * Patients that present with a post extraction class I and II socket (\<30% bone loss on the buccal or lingual plate, measured from the most coronal aspect of intact bone to the most apical aspect of the defect divided by the measurement from the most apical aspect of the defect to the apex of the socket x 100). * Patients presenting with the need for single extractions. * Patients with general good health that does not have a condition contra-indicating routine dental treatment, extraction and implant placement. * Patients that are compliant with the research protocol and methods. * Patients that have read, understood and signed an informed consent form. Exclusion Criteria: * Extraction and ridge preservation indicated for teeth other than premolars and molars. * Patients that present with a post extraction class III socket (\>30% bone loss on the buccal or lingual plate, measured from the most coronal aspect of intact bone to the most apical aspect of the defect divided by the measurement from the most apical aspect of the defect to the apex of the socket x 100) * Patients deemed eligible for immediate implant placement following extraction and intra-operative assessment by the attending supervisor. * Patients that present with an oral-antral communication, post extraction. * Patients that presents with the need for multiple, side by side extractions. * Patients with coagulation disorders, …