Root Canal Treatment Success and Complications

Clinical Implications of Extrusion

Extruded endodontic material can cause fungal balls, with copper and zinc elements in endodontic materials serving as co-factors for fungal growth, particularly in the maxillary sinus 1, 2
Patients with previous root canal treatment show a significantly higher prevalence of maxillary fungal balls (89% vs 37%, p<0.01) compared to controls, highlighting the importance of careful material placement and monitoring 1, 2

The American College of Radiology recommends obtaining periapical radiographs at 3 months, 6 months, 1 year, and then annually for 3 years post-treatment to monitor treatment success and potential complications 3
Clinical signs to monitor include crown discoloration, gingival swelling, increased mobility, and sinus tract formation, which may indicate pulpal necrosis or other complications 5
The American Academy of Pediatrics recommends vigilance in monitoring maxillary posterior teeth for signs of sinusitis or fungal ball formation if material extrusion is suspected 1, 2