Correction of a superiorly displaced impacted canine due to a large dentigerous cyst.

One of the more difficult situations dealt with by orthodontists is the treatment of impacted maxillary canines. This case report describes an impacted canine positioned near the floor of the orbit that was brought into a normal position. Diagnostic records revealed impacted and displaced teeth resulting from a large radiolucent lesion. The patient was referred to an oral surgeon. The lesion was diagnosed as a dentigerous cyst and marsupialized over 12 months. After decompression of the cyst, the impacted teeth were exposed and orthodontically brought into their proper position.