The modified two-by-one fixed orthodontic appliance for bodily movement of canine: a case report.
BACKGROUND
Orthodontic management of an ectopically erupted canine requires substantial amount of bodily movement which is difficult to perform and often results in root resorption.


METHODS
A 9 year old girl presented with Class I malocclusion with crowding and ectopically positioned upper left canine (23). Treatment involved extraction of all first premolars. The alignment of the upper left canine was achieved by the modified 2 by 1 appliance.


CONCLUSIONS
The design of this modified 2 by 1 appliance allows individualized bodily tooth movement of canine, it provides light and continuous force for physiological orthodontic movement with minimal root resorption.
Tsui
Vicky W K
VW
Faculty of Dentistry, University of Hong Kong, 2/F, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, PR China. drvickytsui@gmail.com
Alkhal
Hessa A
HA
Hou
Huie M
HM
Wong
Ricky W K
RW
Rabie
A Bakr M
AB