In days of old when patient's were undergoing a Caldwell-Luc procedure, a perforation through the medial wall of the maxillary sinus below the inferior turbinate was usually created as an alternative "maxillary sinus ostium". Unfortunately, the location of this artificial maxillary sinus ostium was frequently unsuccessful as the cilia in the maxillary sinus beat [sweep] the mucous secretions up toward the natural ostium.
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