title: [Histological studies on the effect of a retraction appliance on miniature pigs].
mesh_terms: D000818:Animals; D004867:Equipment Design; D005115:Extraoral Traction Appliances; D005260:Female; D008334:Mandible / Q000254:growth & development* / Q000473:pathology; D008335:Mandibular Condyle / Q000254:growth & development / Q000473:pathology; D009968:Orthodontic Appliances, Removable; D013314:Stress, Mechanical; D013552:Swine; D013556:Swine, Miniature