Mandibular canine transmigration: Aethio-pathogenetic aspects and six newreported cases

Mandibular canine transmigration is a rare dental ectopia that creates surgical, orthodontic, restorative and interceptive problems. Aethiologic and pathogenetic aspects of mandibular canine transmigration are examined through an international literature review. Six new cases are then presented. All of them involve the left canine in women aged between 7 and 32 years. Finally, a pathogenetic theory is elaborated to explain such long and lasting tooth migration. Two main factors contribute to this movement: a pericoronal osteolitic area and a strong and lasting 'vis a tergo' because of the root formation. An early interceptive treatment of mandibular canine migration can avoid tooth extraction as well as complex orthodontic and restorative therapies. © 2008 The Authors Journal compilation. 2008 Blackwell Munksgaard.