Imaging of odontogenic sinusitis

Area of Science:

• Otolaryngology
• Dental Medicine
• Radiology

Background:

• The link between dental disease and maxillary sinus mucosal disease is recognized in otolaryngology and dental fields.
• However, radiologists often fail to appreciate the odontogenic origins of sinusitis.
• Dental review is essential for interpreting paranasal sinus imaging.

Purpose of the Study:

• To compare the pathogenesis, clinical presentation, and imaging features of rhinogenic and odontogenic sinusitis.
• To highlight the importance of recognizing odontogenic sinusitis, which is often misdiagnosed.
• To discuss the impact of rhinosinusitis on healthcare.

Main Methods:

• Literature review comparing rhinogenic and odontogenic sinusitis.
• Discussion of clinical definitions and healthcare impact.
• Analysis of common causes and imaging features.

Main Results:

• Odontogenic sinusitis, caused by periapical lesions, oroantral communication, or alveolar augmentation, accounts for 25-40% of maxillary sinusitis cases.
• The incidence of odontogenic sinusitis is increasing, with frequent extra-sinus extension and delayed diagnoses.
• Imaging is critical for differentiating between rhinological and odontogenic sinusitis.

Conclusions:

• Odontogenic sinusitis is an underappreciated cause of maxillary sinusitis, necessitating a thorough dental review in imaging interpretation.
• Increased incidence and delayed diagnosis contribute to treatment failures.
• Radiologists must integrate dental assessments for accurate sinusitis diagnosis.