McLaughlin and Bennett worked with Trevisi to re-design the entire bracket system to complement their proven treatment philosophy and to overcome the perceived inadequacies of the original straight-wire appliance. MBT is a version of the preadjusted bracket system specifically for use with light, continuous forces, lacebacks and bendbacks, and it was designed to work ideally with sliding mechanics. In order to complete a modern systemized method of treatment mechanics, it became necessary to address the subjects of archwire selection and force levels. This book attempts to highlight the history of evolution and recent advancement in preadjusted appliances. The first section covers the introduction to preadjusted edgewise appliances. The second section covers a literature review, the history of evolution. The third section covers appliance selection, bracket positioning, archwire selection, and anchorage preparation. The fourth section covers the clinical stages for the completionof orthodontic treatment. The fifth section describes the discussion and conclusion. This book is beneficial for orthodontic practitioners, researchers, and postgraduate students.