Transmigration of a mandibular canine: Case report

Background Transmigration of mandibular canine is an uncommon clinical condition in which impacted canine crosses the midline. The present study describes the case report of a transmigrated canine associated with a follicular cyst located near the inferior border of the mandible in a 15-year-old female patient. Case report Orthopantomography showed the presence of an included transmigrated canine, tooth 43, in a horizontal position, along the lower edge of the mandible, under the roots of the lower incisors, and, in addition, the presence of an attached cysts. CBCT showed type D2 bone quality, according to Misch’s classification, and that the medullary component was well represented, which allows a good healing of hard tissues thanks to an adequate vascularization. One week after the extraction of the transmigrated canine with the contemporary enucleation of the cyst, the removal of stitches was performed and excellent tissue healing was assessed. After six months the orthopantomography showed an optimal healing of the hard tissues. Conclusion Etiology of this phenomenon is unknown, but in some cases the presence of follicular cyst may be one of the causes. Canine transmigration is more prevalent in the mandible and women seem to be more affected than men. Mandibular canines play a crucial role in the oral cavity. Therefore, an early diagnosis is required, by the use of radiographs, especially orthopantomography or computed tomography. In case of transmigrated canine associated with follicular cyst, although several treatment options are described in literature, surgical extraction along with the enucleation of the cyst is the only treatment of choice.