Computed tomography-based assessment of odontogenic sinusitis diagnosis: a cross-sectional study

Abstract

Odontogenic sinusitis remains still underdiagnosed by dental and medical radiologists, and to date, there are no guidelines to make the correct diagnosis. This study aimed to evaluate the prevalence of odontogenic sinusitis on computed tomography in patients indicated to the assessment of maxillary sinusitis in the medical setting. A cross-sectional study was outlined between 2017 to 2019. The DICOM files of patients that performed computed tomography to assess the hypothesis of maxillary sinusitis were evaluated. The maxillary sinusitis was classified following the absence of sinusitis, non-odontogenic sinusitis, odontogenic sinusitis, and indeterminate sinusitis. Odontogenic sinusitis was classified concerning the origin as an endodontic factor, periodontal disease, and dental foreign body. Forty-three patients with a mean age of 47.46±17,77 (ranging from18 to 98) years old that tomographic presented evidence of maxillary sinusitis was included in this study. Considering the sample (n=43), 23.25% (n=10) of patients had maxillary sinusitis of odontogenic origin and 90% of odontogenic cases were associated with endodontic lesions. We observed a high prevalence in computed tomography for odontogenic sinusitis. The presence of periapical alteration associated with endodontic factors was the most prevalent dental origin.