Endoscopic sinus surgery plays an essential role in systematic treatment of odontogenic maxillary sinusitis

Patients should be inspected by dentists carefully when the patient has symptoms rather than sinusitis-like symptoms, the possibility of OMS should always be considered. Dental examination can help to determine whether a maxillary sinusitis has a dental origin, periodontitis and odontogenic radicular cysts still are the most common causes comparing with iatrogenic factors. Patients treated with ESS showed better tolerance and fewer postsurgical complications. Not all patients with OMS including SDCT need definitely surgery whether ESS or intraoral approach, removing dental focus followed with antibiotics would be optimistic choice.