1. The edgewise appliance origin, controversy, commentary;Andrews;J Clin Orthod,1976
2. Dental anatomy, physiology and occlusion;Wheeler,1974
3. A scientific assessment of the straight-wire appliance;Dellinger;Am J Orthod,1978
4. The angular variability of the facial surfaces of the human dentition: an evaluation of the morphological assumptions implicit in the virious “straight-wire techniques”;Morrow,1978
5. Arrangement in the jaws of the roots of the teeth;Dempster;J Am Dent Assoc,1963