Abstract
When facing a patient with malocclusion and malalignment, in the course of the therapy it is imperative to look into patient's past and ask yourself, “Why and how did this patient's occlusion reach this pathological state?” Narrowed arches, difficult and ineffective orthodontic treatments, and post-operative regression of the condition are may be at least partly caused by tongue, labial, postural habits of the patients. Here are presented three cases—an orthodontic treatment which saw post-orthodontic regression of the condition, malalignment caused by nail biting habit, and malalignment at least partly due to postural habit—where improvement was brought by instructions on tongue, labial, and postural habit.
