Case of severe dental and skeletal Class III with bilateral anterior and posterior crossbite with missing tooth 1.3. A bilateral lower sequential distalization of more than 6.5mm in quadrant 3 and more than 8mm in quadrant 4 was planned in an adult patient with the aid of Class III elastics and TADs starting at 3.5mm distalization of teeth 3.6 and 4.6. 

Treated with aligners and QuickSmile biomechanical protocols with significant sequential distalization (quadrants 3 and 4), with the aid of Class III elastics and TADs.