INSTRUCTOR: Dr Barry Winnick Since the first clear aligner comprehensive orthodontic therapy (CAT) was introduced in 1998, rapid progress has been made with the use of this appliance system. Worldwide, more adults are receiving orthodontic therapy than ever before, and this is being credited to the use of sequential clear aligners. More companies are developing aligner systems, and this in turn should lead to even more technical advancements. Complicated malocclusions and skeletal dysplasia are now being treated with sequential aligners for both adults and teenagers. The aligner may look quite simple but it is a very sophisticated bio-force appliance and, though [...]