From Volume 7, Issue 3, July 2014 | Pages 94-98
This paper presents five clinical cases demonstrating the use of the Upper Begg Lower Straight Wire (SWA) technique. It is a method for correcting Class II buccal segments but not involving the classic Begg technique. It frees the occlusion and tips the upper buccal segment teeth distally, and then a Nance button is used for anchorage reinforcement whilst the teeth are uprighted.
The first real multi-bracketed system, the Ribbon arch bracket, was developed by EH Angle 100 years ago, although its description did not appear in print until 1916.1 Despite Angle's introduction of the ‘edgewise bracket’ in 1927, the use of the ‘ribbon arch’ continued until the 1960s, when the cost of gold/platinum brackets and archwires could not compete with stainless steel systems. BF Dewel has written a good description of this appliance.2
PR Begg was a student at Angle's School of Orthodontia in 1924–25 and may have been the first to use the ‘edgewise bracket’, which was then under development. However, after returning to Australia, he abandoned the ‘edgewise bracket’ and modified the ‘ribbon arch’ appliance. In collaboration with the metallurgist AJ Wilcock, he developed the Light Arch Wire Differential Force Technique in 1961.3 This appliance used a stainless steel version of the ribbon arch bracket, turned upside down. This allowed third order movements to be produced by torquing auxiliaries made of highly resilient stainless steel wires.
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