References
- Adams, C. P. (1970) The design and construction of removable orthodontic appliances, 4th edn, p.50. Bristol: John Wright.
- Bass, T. P. and Stephens, C. D. (1977) Basic orthodontics for the practitioner, p. 60. Epsom: A. E. Morgan..
- Bergersen, E. O. (1972) A cephalometric study of the clinical use of the mandibular lip bumper, American Journal of Orthodontics, 61, 578–602.
- Brown, I. D. (1979) Personal communication.
- Isaacson, K. E. and Williams, J. K. (1978) An introduction to fixed appliances, 2nd edn, p. 6. Bristol: John Wright.
- Rose, J. S. and Bass, T. P. (1967) Simple methods of retracting canine teeth Transactions of the European Orthodontic Society, 425–427.
- Waters, N. E., Houston, W. J. B. and Stephens, C. D. (1981) The characterization of arch wires for the initial alignment of irregular teeth American Journal of Orthodontics, 79, 373–389.