1. Contemporary orthodontics;Proffit,1986
2. Dynamics of the tip-edge bracket;Kesling;Am J Orthod,1989
3. The Damon low-friction bracket: a biologically compatible straight-wire system;Damon;J Clin Orthod,1998
4. Effect of surface roughness on the coefficients of friction in model orthodontic systems;Kusy;J Biomech,1990
5. Comparison of the frictional coefficients for selected archwire-bracket slot combinations in the dry and wet states;Kusy;Angle Orthod,1991