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Pterygopalatine Fossa Infiltration Through the Greater Palatine Foramen: Where to Bend the Needle

Objective: In the literature, there has been controversy regarding the length of the greater palatine canal. If the pterygopalatine fossa is infiltrated in an attempt to reduce bleeding during sinus surgery, this information is important to be able to place local anesthetic with maximal effect and the least likelihood of complications.