OMNICHROMA BLOCKER FlowEvery Shade. One Choice. OMNICHROMA FLOW is the worlds first one shade flowable composite to esthetically match every color of tooth from A1 to D4 with a single shade of composite. OMNICHROMA FLOW is the worlds first one shade flowable composite to esthetically match every color of tooth from A1 to D4 with a single shade of composite. Tokuyama Dentals Smart Chromatic Technology, first implemented through the universal composite OMNICHROMA, has changed