4Kim JS,Jin KH,Hong SJ.A statistical study of clinical crowninclination in Korean,a naturally occurring optimal occlusion.Korean Journal of Orthodontics,1992,22:715-733.
5Jafari A,Hetty KS,Umar M.Study of stress distribution and displacement of various craniofacial structures following application of transverse orthopedic forces a three dimensional FEM study[J].Angle Orthod,2003,73(1):12-20.
6Zhang Hongwu,Zhong Wanxie,GU Yuanxian.A combined parametric quadratic programming and iteration method for 3D elastic plastic frictional contact problem analysis[J].Comput Meths Appl Mech,1998,155:307-324.
7王勋成,编著.有限单元法的基本原理和数值方法[M].北京:清华大学出版社,2000:16-75.
8Melsen B.Tissue reaction tooth odontic tooth movement a new paradigm[J].Eur J orthod,2001,23(6):671-681.