Maxillary Sinusitis of Endodontic Origin (MSEO)

The American Association of Endodontics has just released a position paper on Maxillary Sinusitis of Endodontic Origin (MSEO).  These are findings that have always been observed related to endodontic pathosis.  With the more common use of CBCT, the periapical osteoperiostitis and periapical mucositis are more frequently observed.  The clinician now has the resource and proper terminology to describe these findings and appropriately treat them.  Our ENT and MD colleagues will need to be informed of this disease process as it relates to sinusitis.  I will post commonly seen examples in the next few weeks.  Dzuy

American Association of Endodontics MSEO Position Statement:  http://www.seattle-endo.com/referring-doctors/resources-treatment-guidelines/

Examples of periapical osteoperiostitis:

Tooth #2. Pulpal diagnosis of necrotic and associated periapical radiolucency and periapical osteoperiostitis.

Tooth #14. A previously treated tooth with a diffuse radiolucency into the sinus.

CBCT shows the periapical periostitis and associated mucositis into the sinus. Proper treatment of the endodontic pathosis will resolve the sinus pathosis.

Coronal section of tooth #14.