OS-12 Maxillary Sinusitis of Endodontic Origin

CE Hours: 0.

Description: The pathological extension of endodontic disease into the maxillary sinuses is a common disease process yet is often unrecognized in clinical medical and dental practice, with its sequelae often overlooked entirely or misdiagnosed as rhinogenic sinusitis.  This lecture explains and illustrates the etiology, symptoms, and associated clinical and radiographic findings of maxillary sinusitis of endodontic origin (MSEO) with multiple case examples including life-threatening spreading infections.  Emphasis is placed on the importance of CBCT imaging, magnification, and clinical expertise for rendering both non-surgical and surgical endodontic treatment when indicated in the maxillary posterior dentition.  The goal is to help practitioners distinguish rhinosinusitis from MSEO, and improve the health of patients through accurate diagnosis, appropriate treatment, and improved communication between endodontists and ENT specialists.

Learning Objectives:  

• Describe the pathogenic effects and progression of periradicular inflammation on the sinus tissues and the associated clinical and radiographic findings of maxillary sinusitis of endodontic origin (MSEO).
• Recognize the distinguishing differences between rhinogenic sinusitis and odontogenic sinusitis and know when to render endodontic care and/or make an appropriate ENT referral.
• Recognize the indications for endodontic treatment and periapical surgery, and the unique anatomic challenges associated with maxillary posterior teeth proximate to the maxillary sinus.