Odontogenic sinusitis:A state-of-the-art review

Odontogenic sinusitis(ODS)is more common than historically reported,and is under-represented in the sinusitis literature.ODS is distinct from rhinosinusitis in that it is infectious sinusitis from an infectious dental source or a complication from dental procedures,and most commonly presents unilaterally.ODS clinical features,microbiology,and diagnostic and treatment paradigms are also distinct from rhinosinusitis.ODS evaluation and management should generally be conducted by both otolaryngologists and dental providers,and clinicians must be able to suspect and confirm the condition.ODS suspicion is driven by certain clinical features like unilateral maxillary sinus opacification on computed tomography,overt maxillary dental pathology on computed tomography,unilateral middle meatal purulence on nasal endoscopy,foul smell,and odontogenic bacteria in sinus cultures.Otolaryngologists should confirm the sinusitis through nasal endoscopy by assessing for middle meatal purulence,edema,or polyps.Dental providers should confirm dental pathology through appropriate examinations and imaging.Once ODS is confirmed,a multidisciplinary shared decision-making process should ensue to discuss risks and benefits of the timing and different types of dental and sinus surgical interventions.Oral antibiotics are generally ineffective at resolving ODS,especially when there is treatable dental pathology.When both the dental pathology and sinusitis are addressed,resolution can be expected in 90%-100%of cases.For treatable dental pathology,while primary dental treatment may resolve the sinusitis,a significant percentage of patients still require endoscopic sinus surgery.For patients with significant sinusitis symptom burdens,primary endoscopic sinus surgery is an option to resolve symptoms faster,followed by appropriate dental management.More well-designed studies are necessary across all areas of ODS.

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

Purpose:Odontogenic maxillary sinusitis(OMS)is frequently encountered in otorhinolaryngologists'clinical practice.Endoscopic sinus surgery(ESS)instead of surgeries in intraoral approach has been widely applied among OMS.However appropriate treatments due to the causes of the OMS as well as the outcome have been less investigated,meanwhile the inherent incidence of OMS may be still on the rise.This study was designed to conclude our systematic treatment within follow-up examination.Materials and methods:In this retrospective study patients confirmed diagnosis of OMS who had systematic follow-up examinations were analyzed.Medical histories of otorhinolaryngologists and dentists were reviewed as well as preoperative examination protocols.Result:Consecutive 29 Patients(10 women,19 men)were included.41.4%(12/29)patients experienced facial pain as the most frequent symptom.69.0%(20/29)patients admitted firstly to otorhinolaryngologists,13 patients were treated with surgical procedure while 7 patients lacking of surgical indication were transferred to dentists.31.0%(9/29)patients were advised by dentist for being suspected of maxillary sinusitis,including 7 patients suffered from sinonasal complications of dental treatment(SCDT).Conventional dental treatment(root planning,root end surgery,extraction)was the most common cause.Follow up for a mean of 15.1(ranges from 6 to 96)months showed 29 patients maintaining open maxillary ostium on endoscopic examination or improving on CT except recurrence in one patient with SCDT.Conclusion: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.