title: [Mechanical principles of the extraoral traction in orthodontics].
mesh_terms: D001696:Biomechanical Phenomena; D003799:Dental Stress Analysis; D005115:Extraoral Traction Appliances; D006801:Humans; D009968:Orthodontic Appliances, Removable; D012399:Rotation; D013314:Stress, Mechanical; D014087:Tooth Movement Techniques
vernacular_title: Principi meccanici delle trazioni extraorali in ortognatodonzia.