The relevance of this paper consists in comparing the practitioner’s view to general public opinion. Orthodontists learned to evaluate facial profiles in a critical way, with reference to standards. They have developed personal appreciations to gauge a balanced profile. But, because orthodontic treatment implies achieving an aesthetic effect, the practitioner must know what is the optimal objective according to the public opinion. Our study deals with the aesthetic assessment of teenagers’ profiles in Class II (Corner and Ballard) by professional examiners and lay people. These profiles have been modified by simulating mandibular protrusion.