SP-26 - Maxillary Sinusitis of Endodontic Origin: From Diagnosis to Treatment Outcome

Presentation Description/Abstract: Maxillary sinusitis of endodontic origin refers specifically to sinusitis secondary to periradicular disease of endodontic origin. This pathology requires an accurate diagnosis followed by appropriate endodontic treatment to remove the source of endodontic pathogens associated with the periapical disease and secondary sinus infection. The use of CBCT imaging significantly improve the ability to detect mucosal soft tissue changes, sinus membrane thickening and odontogenic sources for sinusitis, such as untreated canals. In this presentation, several cases of maxillary sinusitis of endodontic and dental origin, with different manifestations, diagnostic challenges, treatment and outcomes will be described. All of them with inflammatory sinus changes represented by mucositis, osteoperiostitis or partial obstruction; that showed sinus signs and symptoms which dissapeared after dental management. In most of them, the sinus condition had an endodontic origin, however, in one case, sinusitis was caused by trauma to the face. All cases had a satisfactory response of the periradicular tissues and maxillary sinus to treatment that consisted of root canal therapy or trauma management.