1. Occlusion may refer to: == Health and fitness == Occlusion (dentistry), the manner in which the upper and lower teeth come together when the mouth is closed Occlusion miliaria, a skin condition Occlusive dressing, an air- and water-tight trauma dressing used in first aid Vascular occlusion, blockage of a blood vessel Vascular occlusion training, or blood flow restriction training, a technique done by some bodybuilders == Other uses == Ambient occlusion, a shading method used in 3D computer graphics Occluded front, part of cyclone formation Occlusion culling, or hidden surface determination, a 3D computer graphics process Occlusion effect, an audio phenomenon Occlusive, in phonetics == See also == Occlusion training (disambiguation) Occultation, when one object is hidden by another object that passes between it and the observer Occlusive (disambiguation) from wikipedia.org