_____ Anterior torque is lost during retraction -> Therefore: add 1 degree of lingual-root of torque and 0.2 mm of intrusion per aligner when the anterior teeth are retracted

Protocol options available for class II treatment: It is suggested that staging of sequential distalization should be moving towards the distal half of the total movement of the first tooth before starting distalization of the following one. Elastics Class II elastic until the moment that…

In Class II division 2, the upper incisor’s torque is essential for the correction. The more retroclined the upper incisors are, the more posterior anchorage will be needed. This is the reason why, in some severe Class II division 2, a posterior microscrew is need…