References
- Muir, J. D. (1972) Anterior retention in the removable appliance, The Dental Practitioner, 22, 398–404.
- Plint, D. A. (1962) A method of treating Class II Division I cases without using the lower arch for anchorage or traction, The Dental Practitioner, 12, 179–183.
- Usiskin, L. A. and Webb, W. D. (1972) Extra-oral anchorage for upper removable orthodontic appliances British Dental Journal, 133, 140–145.