At the end of the first series of aligners. There were 26 in the series and the patient changed the aligners every week so this first series tooth 6 months. Elastic wear was very good which is critical to correct this Class II bite. At this stage new photos and an intra-oral scan was taken to make another series of aligners. The patient wore his final aligner from the first series night-time for 4 weeks and then we had the new (second) series of aligners to fit.