Based on mild to moderate malocclusion (defined as crowding and spacing up to 6mm, and overjet and overbite up to 6mm and assuming one week wear), treatment times vary depending on Invisalign product type, wear time, case complexity and must be determined by your doctor.Am J Orthod Dentofacial Orthop February 2017, 151 259-66 Buschang, P et al Comparative time efficiency of aligner therapy and conventional edgewise braces. Evaluation of Invisalign treatment effectiveness and efficiency compared with conventional fixed appliances using the Peer Assessment Rating index. ○ Compared to Invisalign aligners previously made from single-layer (EX30) material.