Radiographic assessment of the correlation between maxillary sinus dimensions and greater palatine canal pathway in CBCT images (a retrospective study)

Considering the restrictions of the current retrospective study, the current study illustrated a significant correlation between maxillary sinus (MS) dimensions and greater palatine canal (GPC) anatomy, specifically the GPC pathway and angle. Larger MS (especially height) correlated with GPC with more posterior pathway and lesser angle, which is sex-based association. These findings are with great clinical significance to minimize the risk of GPC neurovascular bundle iatrogenic injury during interventions dealing with posterior maxilla, particularly sinus lifts, implant planning, due to potential impingement from MS expansion.