1. The orthodontic appliance: esthetic considerations;Hershey;J Am Dent Assoc,1987
2. Ceramic brackets;Swartz;J Clin Orthod,1988
3. Stargram. “A”-Company, Issue 3, February 1988.
4. In vitro comparative study of shear and tensile bond strengths for stainless steel and ceramic orthodontic brackets;Ripley,1988
5. Fracture toughness and surface cracks — the key to understanding ceramic brackets;Scott;Angle Orthod,1988