The endoscopically assisted transcrestal sinus floor elevation with platelet-rich fibrin at an immediate implantation of periapical lesion site

摘要

Rationale:The traditional maxillary sinus floor elevation has serious postoperative complications and long healing periods, for patients with insufficient residual bone height (RBH). The endoscopic technique improves the blind nature of the sinus floor elevation procedure. Platelet-rich fibrin (PRF) can promote tissue healing and prevent perforation.