References
- KINGSLEY, as quoted by Reidel in Chapter 9, of Current Orthodontic Concepts and Techniques (T. M. Graber, Editor), Volume II Saunders, Philadelphia, 1969.
- LUNDSTROM, Malocclusions of the teeth regarded as a problem in connection with the apical base. Int. J. Orthodont. II: 591 - 1109, 1925.
- McCAULEY, D. R.: The cuspid and its function in retention. Amer. J. Orthodont. 30:196-205, 1944.
- TWEED, C. H.: Indications for the extraction of teeth in orthodontic procedures, Amer. J. Orthodont 30: 405 - 428, 1944.
- ROGERS, A. P.: As quoted by Reidel in Chapter 9 of Current Orthodontic Concepts and Techniques, (T. M. Graber, Editor), Volume II.
- HAHN, G. W,: Retention — the step-child of orthodontia, Angle Orth’odont. 14: 3 - 12, 1944.
- HELLMAN, M.: Failures in orthodontic treatment, Int. J. Orthodont, & Oral Surg. 22 : 343 - 360, 1936.
- GRABER, T. M.: Postmortems in post-treatment, adjustment. Amer. J. Orthodont 52: 331 - 352, 1966.
- REIDEL, R. A.: Retention, Chapter 9 in Current Orthodontic Concepts and Techniques (T. M. Graber, Editor). Volume II, Saunders, Philadelphia, 1969.
- SALZMANN, J. A.: Practice of Orthodontics, Lippincott, Philadelphia, 1966, Volume II, Page 1038.
- REITAN, K.: Principles of retention and avoidance of post-treatment relapse. Amer. J. Orthodont 55: 776‘790, 1969.
- SALZMANN, J. A.: Practice of Orthodontics, Lippincott, Philadelphia, 1966, Volume II, Page 1043.