1. Epidemiology of third molar impactions;Andreasen,1997
2. Our third molar teeth: their eruption, presence and absence;Hellman;Dent Cosmos,1936
3. Positional changes in mesio-angular impacted mandibular third molars during a year;Shiller;J Am Dent Assoc,1979
4. The principles of exodontias as applied to the impacted third molar;Winter,1926
5. Impacted teeth;Alling,1993