1. Controlled space closure with a preadjusted appliance system;Bennett;J Clin Orthod,1990
2. Anchorage control during levelling and aligning with a preadjusted appliance system;McLaughlin;J Clin Orthod,1991
3. Canine retraction with J hook headgear;Perez;Am J Orthod,1980
4. Begg orthodontic theory and technique;Begg,1977
5. Begg-edgewise, an amalgamated technique;De Angelis;Am J Orthod,1976