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Cephalometric considerations of the upper protrusion treatment cases by the edgewise method.

The edgewise method in orthodontics has attained to the present refinement from a primitive appliance devised by Angle, the veritable founder of modern orthodontics, through various modifications up to date for a realization of an effective treatment. In his daily use of this method in clinic, the author has encountered several questions connected with it. Roughly, these questions are i) what are actual changes in the maxillo facio dental complex due to an orthodontic treatment ? ii) what are factors, if any, to influence the individual facial growth and, if such are present, what portion of the face is most susceptible ? and iii) what stage of the facial growth is to be selected for a most effective treatment? To answer these questions successfully will mean a better and more meaningful treatment for which every orthodontist aspires. The present cephalometric considerations of these matters have been conducted along this line of thinking.