Align Technology, Inc. designs, manufactures and markets the Invisalign system, a method for treating malocclusion, or the misalignment of teeth. Invisalign corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position. Because it does not rely on the use of metal or ceramic brackets and wires, Invisalign reduces the aesthetic and other limitations associated with traditional metal arch wires and brackets, commonly referred to as braces. Its major products include Full Invisalign Treatment, Invisalign Express, Vivera, Invisalign Teen, Invisalign ClinAssist and ancillary. The Invisalign system comprises several phases, the principal