References
- Andrews, L. F. (1976) The straight wire appliance. Arch form, wire bending and an experiment, Journal of Clinical Orthodontics, 10, 581–588.
- Lindquist, J. T. (1975) In: T. M. Graber and B. F. Swain (Eds), Current Orthodontic concepts and techniques, 2nd edn. Philadelphia: W. B. Saunders
- Richardson, A. (1977) Typodonts, British Journal of Orthodontics, 4, 208–210.
- Zachrisson, B. U. (1980) An update in direct bonding, Presented to the BAO Annual Conference, Bristol.