Do Symptoms Correlate with the Signs in Odontogenic Sinusitis with Periapical Lesions?

Introduction: Endodontic pathology is one of the most common causes of odontogenic sinusitis, and its evaluation is challenging. Omission of periapical lesions in diagnostic process leads to recurrent sinusitis after cessation of medical therapy. Methods: Sixty-one symptomatic patients presented with odontogenic sinusitis with periapical lesions of teeth adjacent to the maxillary sinus were included in the study. Symptoms evaluated with SNOT-22 and OHIP-14 questionnaires were compared to signs during endoscopic and radiological evaluation. Results: Coexistence of odontogenic sinusitis with nasal polyps significantly decreases the quality of life, especially concerning the emotional domain (p = 0.047). Patency of ostiomeatal corresponds well with the severity of sinonasal symptoms reported with SNOT-22 (p = 0.051). Extent of maxillary sinus opacifications scored with Zinreich scale correlates positively with the presence of discharge (p = 0.001) and edema (p = 0.072) in the endoscopic Lund-Kennedy scale. Among 67 teeth with periapical lesions, 73.1% had undergone previous root canal treatment, but in 47.8% of cases, it was defined as incomplete. Endodontic status did not affect the severity of patient's complaints. Conclusion: In case of odontogenic sinusitis of endodontic origin, endoscopic signs correlate better than radiological with the self-reported symptoms. In order to better evaluate the severity of the disease and possible need of surgical intervention, both otolaryngologists and dental specialists should focus on extent of inflammatory lesions in the maxillary sinus.