(PO77) Maxillary Sinusitis of Endodontic Origin: A Prospective Clinical Study

Abstract: Maxillary Sinusitis of Endodontic Origin (MSEO) is a lesion of endodontic origin that results in maxillary sinus abnormalities. Most often, these pathological changes are readily observed in dental CBCT images. The purpose of this research was to determine the sinonasal symptoms of patients with MSEO lesions. Thirty patients who required endodontic therapy on maxillary posterior dentition with radiographic evidence of maxillary sinus pathology were included in the study. A Sino-nasal Outcome Test (SNOT-22) survey was distributed to assess the severity of sinus disease. A generalized regression analysis was used to analyze the data. The mean SNOT-22 score was 33.3 ± 21.98. The mean age was 61.1 ± 17.38 years. The total sample size (n=30) comprised 50% males and 50% females, with a total of 36 teeth (6 patients had one additional tooth involved). 55% (n=20) of patients reported tooth pain, whereas 45% (n=16) did not report pain. Inter-rater agreement was high between reviewers. 89.9% of cases (n=32) with chronic endodontic lesions were associated with maxillary sinus disease. 55% (n=17) of cases were diagnosed with Periapical Mucositis (PAM), 37% (n=11) with Periapical Osteoperiostitis (PAO), and 8% (n=2) with partial blockage (PB). Patients with MSEO lesions displayed moderate clinical signs of chronic rhinosinusitis. Standard examination should include a unified and validated questionnaire concerning both sinonasal and oral symptoms to help both ENT specialists and endodontists establish a proper patient-oriented diagnosis and treatment.