I'm on tray 7 out of 10 in my Invisalign treatment. I accidentally put tray 7 in a day early. Will this cause any harm?

Aligner schedules of 2 weeks per aligner are averages of needed wear times to allow for proper teeth movement and orthodontic  bone remodeling.   With proper daily wear time of over 20 hours a day with limited aligner removal times missing one day of said aligner should not in anyway effect your outcome.  You can add one day to your current aligner (15 days of wear) to put your mind at ease.Good luck!

Invisalign trays are designed using a patented SmartTrack material allowing it to apply very gentle pressure to your teeth. For this reason, a day off your scheduled wear will have minimal harm on your teeth as long as your teeth have been progressing along as planned.

With the consistent  wear that you have expressed it is OK to skip ahead to the next aligner provided that it is is tracking well.  Make sure that your teeth fit fully into the trays at the biting edge of your teeth.  If it will not seat completely then you need to back up to your previous tray.  Make sure yo use your chewies to fully seat the new tray.

Not to worry, you should be fine. Good for you that you are so diligent with it. With proper wear and use, you will certainly achieve the result you are looking to accomplish.

Starting a day early should not present an issue for you as your compliance is very high. Let your doctor know but you should still be on track. We wish all of our patients were as conscientious as you are. Good luck to you.