1. Displaced and impacted canines;Rohrer;Int J Orthod,1929
2. A new approach to the unerupted tooth by surgery and orthodontics;Strock;Am J Orthod,1938
3. Concerning impacted teeth;Gunter;Am J Orthod,1942
4. The upper cuspid: its development and impaction;Dewel;Angle Orthod,1949
5. Impacted maxillary canine;Hitchin;Dent Pract,1951