title: [Studies on orthodontic polyurethane ringlets. (Part 2). Examination of its clinical application (author's transl)].
mesh_terms: D003799:Dental Stress Analysis; D004548:Elasticity; D006801:Humans; D011140:Polyurethanes; D013718:Tensile Strength; D014087:Tooth Movement Techniques / Q000295:instrumentation*
chemical_list: D011140:Polyurethanes