Application of free rectus abdominis musculocutaneous flap in One-stage reconstruction of oral and maxillofacial large tissue defect;

Clinical analysis for transcatheter closure of large atrial septal defect in 123 cases

At the present time, the issue is still open as to the cavity form of pulp chamber preparation during the process of root canal therapy.

Objective:To discuss the feasibility and effect of allograft bone pipe fill with autologous bone in repairing large segmental bone defects with allogeneic cortical bone plates associated with steel plate,with the purpose of providing new idea and experimental testimony to follow-up experiment and clinical application.