Document Type : Review article


Department of Orthodontics, Pravara Institute of Medical Sciences, Rural Dental College, Loni, Ahmednagar, Maharashtra, India


Rotations are very common components of malocclusions. Couple forces bring about a quick and an efficient correction but the two anchorage units from which the force is being derived should be stable in order to prevent the reaction forces. In this case report, derotation of a central tooth with a couple force system appliance without deleterious effects on the surrounding teeth has been presented.