1. Comparison of the frictional coefficients for selected archwire-bracket slot combinations in the dry and wet states;Kusy;Angle Orthod,1991
2. Frictional resistance of ceramic and stainless steel orthodontic brackets;Pratten;Am J Orthod Dentofac Orthop,1990
3. Evaluation of friction between ceramic brackets and orthodontic wires of four alloys;Angolkar;Am J Orthod Dentofac Orthop,1990
4. Frictional forces in fixed orthodontic appliances;Nicolls;Dent Pract,1968
5. Evaluation of friction forces in the 0.022“×0.028” edgewise bracket in vitro;Andreasen;J Biomech,1970