Differential diagnostic analysis system.

This article links clinical research to fundamental orthodontic concepts to give the clinician a workable differential diagnosis system. The clinical research, conducted by the Charles Tweed Foundation, attempted to establish a "profile" for the Class II malocclusion correction, which, because of certain characteristics, was destined to failure. The Cranial Facial Dental Analysis integrates this clinical research with the total space analysis to give the clinical orthodontist a useful tool for differential diagnosis.