This book covers the detail about retraction mechanics that can be used for various prescriptions and also covers the recent as well as old mechanics that has been used earlier with their detailed references and literature support. They also explains about the results and those history behind retraction mechanics that have been used. It do considers the anterior,posterior as well as individual retraction mechanics that can be used or that have been modified with the recent advances. This gives the details about the recent advances of aesthetic's i.e aligners which has been explained in detail...