How do members experience Maxillary sinus cleanout? Top 5 reported purposes & perceived effectiveness Purpose Patients Evaluations Perceived Effectiveness This item is relevant to you: Ethmoid sinus cyst 1 0 0% 0% 0% 0% 0% This item is relevant to you: Maxillary sinus hypoplasia 1 0 0% 0% 0% 0% 0%