antral foreign bodies, sinusitis, Valsalva test


Background: Antral foreign bodies disrupt normal sinus drainage and can lead to sinusitis and infection. These foreign bodies can arise from many sources including several unique to the dental setting. Case Description: Typical sources like displaced teeth, roots, and root canal filling materials would be iatrogenically introduced at the time of sinus violation. However, we report the unusual case of displaced provisional prosthesis material introduced via a small and almost invisible oroantral fistula several years following extraction. Practical Implications: light of this case, we emphasize the importance of the Valsalva test to diagnose oral antral fistulas following extractions and prior to restoration.