Inclusion Criteria:  Patients who present with pathology of a tooth in which the residual dentine margin is below the gingival margin and who, among the different alternatives, opt for treatment by surgical extrusion.  Exclusion Criteria:  Patients in whom surgical intervention is contraindicated. Teeth with vertical fractures up to the apex. Teeth with pocket depth >4 mm in any of their walls. Failure of the treatment leading to the loss of the extruded tooth.