A Radiological Study of Periapical Disease and Odontogenic Maxillary Sinusitis

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  • Takeda Momoko
    Department of Otorhinolaryngology, The Jikei Daisan Hospital
  • Mori Eri
    Department of Otorhinolaryngology, The Jikei Daisan Hospital Department of Otorhinolaryngology, The Jikei University School of Medicine
  • Onoue Kaoru
    Department of Radiology, The Jikei Daisan Hospital
  • Iimura Jiro
    Department of Otorhinolaryngology, The Jikei University School of Medicine
  • Hatano Atsushi
    Department of Otorhinolaryngology, The Jikei Daisan Hospital
  • Ojiri Hiroya
    Department of Radiology, The Jikei University School of Medicine
  • Otori Nobuyoshi
    Department of Otorhinolaryngology, The Jikei University School of Medicine

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Other Title
  • 歯性上顎洞炎の根尖病巣についての画像的検討

Abstract

<p>[Introduction] Odontogenic maxillary sinusitis (OMS) is a common type of sinusitis. However, the change to OMS can be prevented with early detection of periapical disease of the upper teeth and early dental therapeutic intervention. We suspect that routine assessment of periapical disease of the upper teeth with computed tomography (CT) of the sinus would be useful for preventing and shortening the duration of OMS. Although OMS is usually diagnosed by otorhinolaryngologists, they can overlook periapical disease of the upper teeth. In this study, we evaluated the periapical disease of the upper teeth on the basis of detailed CT scans to determine whether patients with OMS had previously undergone dental treatment.</p><p>[Methods] A total of 1,112 patients underwent sinus CT examinations from October 2012 through May 2014 at our hospital. On sinus CT images, we searched for periapical disease of the upper teeth, root apices of the upper teeth opening to the maxillary sinus, and shadows of the maxillary sinuses. OMS were diagnosed when patients met all criteria. We examined the rates of periapical lesions of the upper teeth and a history of dental treatment and patient’s characteristics.</p><p>[Results] A total of 882 (79.3%) of the 1,112 patients had shadows of sinuses, and 169 (19.1%) patients had odontogenic maxillary sinusitis diagnosed with radiological findings. Dental treatment had been received by only 12.4% of the patients (21 of 169).</p><p>[Conclusion] We believe that a routine assessment of the periapical disease of the upper teeth by sinus CT might be useful for preventing the change from periapical disease to OMS.</p>

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