1. The physiologic and pathological resorption of tooth roots;Ottolengui;Items Interest,1914
2. A preliminary report of an investigation of apical root resorption of permanent teeth;Ketcham;Int J Orthod,1927
3. A progress report of an investigation of apical root resorption of vital permanent teeth;Ketcham;Int J Orthod,1929
4. Apical root resorption under orthodontic therapy;Phillips;Angle Orthod,1955
5. A study of root resorption in treated Class II, Division 1 malocclusions;DeShields;Angle Orthod,1969