Changing Invisalign tray every 10 days instead of 14?

I have successfully treated hundreds of patients with Invisalign, and I have never seen it cause resorption of roots like conventional orthodontics can cause.  I instruct my patients to use biting forces on something chewable and my cases always seem to turn our very nice.  I think the chewie technique has eliminated the need to do refinements in an extremely high number of my patients

If the rate of movement planned by your doctor is well-thought out, you should not have any concerns about decreasing the cycle of changes.  Align Technology actually came out with some guidance to change trays every 7 days recently, although that is not something we universally feel should be done.  Here are some excerpts from a blog entry we put together.  Hope it is helpful!-----Many offices have been changing aligners for patients on a faster cycle using appliances such as AcceleDent and Propel VPro5, or for teens and midcourse correction or refinement aligners.  Other doctors have been asking patients to change aligners every 7 days by reducing the amount of movement per aligner.  In other words, the total treatment time remains the same, but there are double the aligners.There are definitely indications for faster cycle changes, but just like any braces treatment, the rate of tooth movement will depend on a number of factors including patient compliance, density of the bone, individual physiology, and the level of difficulty of the movement requested.At the end of the day, there are many variables contributing to the decision on a cycle change schedule.  We have patients that change aligners on 3 week, 2 week, 10 day, 1 week, 5 day, and 3 day cycles.  Only your doctor who is familiar with the goals of the treatment and experienced with Invisalign will be able to determine exactly what the best aligner cycle is for you.