title: Effects of prestretching on force degradation characteristics of plastic modules.
mesh_terms: D000388:Air; D009967:Orthodontic Appliances; D010969:Plastics; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water
chemical_list: D010969:Plastics; D014867:Water