I started Simpli5 on 6 October 2016 and had IPR done on 3 teeth with the first tray which is to be worn for 3 weeks; if the dentist approves that movement has occurred as planned. The trays are to be worn for 20 - 22 hours. So far, there has been no pain associated with this tray. Hopefully, no refinement trays will be needed but won't know for sure until tray 5 has been worn for the...