Final answer:
The Caldwell-Luc procedure is a surgical operation that creates a new passageway between the maxillary sinuses and the nasal cavity to improve drainage and remove diseased tissues.
Step-by-step explanation:
A Caldwell-Luc procedure is the creation of a new passageway between the maxillary sinuses and the nasal cavity to establish drainage and to remove any diseased tissue, polyps, or tumors. The incision for this surgery is made in the oral mucous membrane above the canine teeth, in an area called fossa. The goal of this procedure is to improve sinus function while addressing issues within the maxillary sinus, underpinning the significance of an effective sinus drainage system for respiratory health.