[Dr. TifQureshi]

Correct answer from Pav as always.

I would just add that studies show that orthodontic treatments that allow the forces to be stopped for 4 hours a day (basically any system that allows the brace to be removed as with the Inman Aligner,) are less likely to cause root resorption, which is risk that can be induced by orthodontic forces.

This is because the teeth are given time to recover from the pressure of movement.
Because inman forces are and should be low, we are finding complication rates to be almost non-existent.