Orthodontic treatment of a patient with an unusual impaction of a central incisor: case report.

This report documented an unusual case with impaction of a right permanent central incisor. The purpose of this work was to illustrate how the original lingual lever arm moved the impacted central incisor in the dental arch. The authors used a modified lingual arch made of .036 inch stainless steel wire soldered to bands on the second primary molars. The lingual arch caused some minor inconveniences, but the discomfort was slight. Patient compliance was not a problem because a fixed appliance was used in the primary dentition.