1Joshi MR.Transmigrant mandibular canines:a record of 28 cases and a retrospective review of the literature[J].Angle Orthod,2001,71(1):12-22.
2Bodner L,Bar-Ziv J,Becker A.Image accuracy of plain film radiography and computerized tomography in assessing morphological abnormality of impacted teeth[J].Am J Orthod Dentofacial Orthop,2001,120(6):623-628.
3Frank CA,Long M Periodontal concerns associated with the orthodontic treatment of impacted teeth[J].Am J Orthod Dentofacial Orthop,2002,121(6):639-649.
