作者: John Morton , Avi Kopelman
DOI:
关键词: Shell (structure) 、 Engineering drawing 、 Fabrication 、 Tooth movement 、 Mechanical engineering 、 Materials science 、 Coupling (piping)
摘要: Polymeric shell appliances are provided in which the polymeric configured to provide one or more activation forces facilitate tooth movement. In many embodiments, comprise interproximal engagement structures surfaces. arranged a plurality of forces, including force direction opposite an intended The may receiving cavities, each cavities is shaped and counter moment teeth.