2021 Edward H. Angle Award Lecture; Biomechanics and Force Delivery Systems: Wires to Screws to Plastics

In the last two decades, clinical orthodontic practice has changed tremendously with the introduction of skeletal anchorage miniscrews and aligners. Orthodontic tooth movement takes place in response to stresses placed on periodontium with applied force system. This presentation will discuss similarities and limitations of three different appliance systems for managing complex malocclusions.

Learning Objectives:

• Evaluate advantages and limitations of treatment with braces, mini screws and aligners.
• Recognize common side effects and how to minimize them.
• Apply appropriate force system for various tooth movements.