Patients at the beginning of third stage show variation in occlussion from a class I to class II relationship through
the buccal segments and an edge to edge bite on the anteriors.
All the anteriors are tipped mesially and the molars upright.
Encompasses procedures to restore the teeth to their correct axial inclination.
Mastery over the intricasies involved in the third stage can mean all the difference between delight and defeat in most cases treated with the Begg appliance