[Histochemical studies of the cartilage layer of the mandibular condyle after the use of a retractor appliance].
D000818:Animals; D002358:Cartilage, Articular / Q000033:anatomy & histology*; D005115:Extraoral Traction Appliances; D008335:Mandibular Condyle / Q000033:anatomy & histology*; D009968:Orthodontic Appliances, Removable; D013194:Staining and Labeling; D013552:Swine; D013556:Swine, Miniature