1. Root Canal Therapy;Grossman,1950
2. Tooth mobility revisited;Anderegg;J Periodontol,2001
3. Persistent tooth hypermobility following completion of periodontal treatment;Nyman;J Clin Periodontol,1976
4. Tooth mobility and periodontal disease;Giargia;J Clin Periodontol,1997
5. Understanding tooth mobility;Greenstein;Compendium,1988