Invisalign One-Day Break - How Much To Wait Till Next Tray?

This is a very good question and should be discussed with your treating dentist; but generally speaking, after someone has worn 10 aligners they have a pretty good idea of when an aligner has done its job. The majority of an aligner's work is done in the first few days and the rest of the two weeks is to hold the movements. I would suggest you wear the aligner until it comes in and out easily and comfortably and then wear it an additional couple of days. Better to wear the aligner a few extra days than to have to do more lengthy refinements at the end to correct something that could have been prevented by more faithful aligner wear.

Good luck!

Invisalign trays put constant pressure on teeth to move them into a new position.  If the tray is lost or not worn, the teeth will tend to drift.  This is why it is so important to wear the trays for at least 20 hours a day and to wear retainers for up to a year after treatment is finished.  I would ask you to wear the tray until it is time to go to the next tray and you should be fine.  It is better to loose or forget a tray towards the end of the 2 weeks!

I believe you can move to tray 11 if you only missed one day.

You should also ask the permission to your treating dentist.