Minimally-Invasive Endoscopic-Assisted Sinus Augmentation

Objectives: The purpose of this article is to evaluate endoscopic-assisted technique by lateral approach for sinus floor augmentation, to reduce the incidence of Schneiderian membrane perforation, and to guarantee a sufficient apposition of new bone even in the posterior maxillary sinus. Methods: From January 2017 to December 2017, 10 patients affected by severe maxillary atrophy underwent endoscopic-assisted sinus augmentation using a lateral approach. Results: In only 1 patient, a little perforation of sinus membrane was observed intraoperatively and it was repaired. No abnormal postoperative bleeding was observed. None of the patients experienced oro-antral fistula, infection, or V2 dysesthesia. The authors did not find radiologic evidences of biomaterial displaced on the maxillary sinus or postoperative sinusitis. Conclusions: The authors evaluated endoscopic-assisted maxillary sinus augmentation technique using a lateral approach that allows a direct and clear view of the surgical field. This technique, as the preliminary results demonstrate, is safe and helpful, especially in avoiding membrane perforation and in xenograft optimal distribution. It could be very useful in retreatment patients.