How many percent treatment time saved by PROPEL ?

The teeth move 2.3 times as fast so treatment time can be reduced by more than 60%.

However if more predictable movement reduces the number of refinements, the time savings can be even greater.

So it is not just faster tooth movement , it is also more predicable movement. If teeth don’t track with aligners we then have poorly fitting aligners, then we need to order additional aligners. That takes a lot of time.