4Laino A, Caceiafesta V, Martina R. Treatment of tooth inpac- tion and transposition with a Segmented- Arch Technique [J]. J Clin Orthod,2001,2 : 79 - 86.
5Noble PM,Butcher GW. A removable appliance for the three - di- mensional movement of ectopic maxillary Canines[J]. Br J Orthod,1991,18(2) :135- 138.
6Aguilo L, Gandia JL. Forced erupition of a labially impacted maxillary Canine with a transcoronal Stainless wire:report of case[J]. ASDC J Dent child,2000,67(4) :288 - 7,92.
