Muhammad Chishti;H. Robert Vandenberg;Ross J. Miller;Eric Kuo;Loc X. Phan
发明人:
Loc X. Phan,Muhammad Chishti,Ross J. Miller,H. Robert Vandenberg,Eric Kuo
申请号：
US13245574
公开号：
US08858226B2
申请日:
2011.09.26
申请国别(地区):
US
年份:
2014
代理人:
摘要：
The present invention provides improved devices, systems and methods for repositioning teeth from an initial tooth arrangement to a final tooth arrangement. Repositioning is accomplished with a system comprising a series of polymeric shell appliances configured to receive the teeth and incrementally reposition individual teeth in a series of successive steps. The individual appliances may be formed from layers having different stiffnesses (elastic moduluses), and the stiffnesses of successive appliances may be different, or both.
