At what point are the incisors retracted to the point of adversely affecting facial esthetics? That too depends largely on the soft tissues. A concave profile with thinned/shortened/retruded lips, so that there is little vermilion border, is an unaesthetic trait. In a patient with thin lips, protruding the incisors tends to create fuller lips with more vermilion show, and this is likely to be perceived as more attractive. Since the face tends to flatten with age and the lips become less full with aging, retracting teeth by Orthodontic treatment in patients with thin lips can prematurely age the face. The upper incisors are too far lingual if the upper lip inclines backward - it should be slightly forward from its base at soft tissue point A.
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