1. Epoxy for orthodontic attachments;Newman;Am J Orthod,1965
2. A universal direct system for both metal and plastic brackets;Silverman;Am J Orthod,1972
3. Direct bonding update;Hocevar;J Clin Orthod,1979
4. 1986 JCO study of orthodontic diagnosis and treatment procedures;Gottlieb;J Clin Orthod,1986
5. Comparison morphologique de l'intrados des bases de différentes attaches orthodontiques métalliques observées au microscope électronique à balayage;El Alam;Orthod Fr,1997