The aim of this book is to introduce the Multidisciplinary approach in orthodontics. In routine practice number of adult patients are increasing. These adult patients had abraded or worn teeth, old failing restorations, tipped teeth, multiple edentulous spaces from previous tooth extraction, periodontal breakdown, recession, and many other periodontal and restorative problems that compromised an orthodontist ability to achieve an ideal orthodontic result. This literature will help us to know about various interdisciplinary approaches to manage these problems.