I Lost my Invisalign Tray(tray#7) on Day 7, Can I Go to the Next One?

If you lose an aligner with the Invisalign system, move on to the next one ASAP.  Although it is recommended to wear each sequential aligner for the recommended time, if one is lost or destroyed and is unusable, you need to immediately start wearing the next aligner.  This will prevent backsliding that will invariably occur if you wear nothing for a time period before a replacement can be shipped to you.  You may need to make up for the lost aligner by wearing the next aligner for an additional week or two to make things work in the end.  Of course you should always consult your Invisalign orthodontist/dentist for your direct personal instructions.

Depending on the severity of your orthodontic situation and also the consistency of wear with your Invisalign aligners, it is possible that you could move on to the next set of aligners after you have worn them for 7 days. However, it is best if you consult with your orthodontist before you make the decision to move to the next set. Ideally you should visit your orthodontist, so that he or she can determine whether or not you are ready to move on to your next tray. If you are not ready, the orthodontist may be able to order new trays for the ones that you lost.

Ideally, you should immediately go back to aligner #6 & have dentist order a replacement #7. If you did not keep aligner #6 as you were supposed to, then go ahead with #8, but have your dentist check fit BEFORE moving on to #9.