A novel and simple technique for correcting localised rotations in the early alignment stage

Area of Science:

• Orthodontics
• Biomechanical Engineering

Background:

• Severe tooth rotations present a significant challenge in orthodontic treatment.
• Various fixed and removable appliances exist for tooth de-rotation.
• Optimal mechanical de-rotation involves a two-force couple system acting around the tooth's center of rotation.

Purpose of the Study:

• To introduce a simple and efficient closed coil technique for correcting localized tooth rotations.
• To apply a two-force couple system for de-rotation during the early alignment stage.
• To revisit biomechanical principles relevant to tooth de-rotation.

Main Methods:

• A novel technique utilizing a closed coil spring is described.
• The method is designed to generate a two-force couple system.
• Application is focused on the early alignment phase of orthodontic treatment.

Main Results:

• The closed coil technique provides a simple and efficient means of de-rotating teeth.
• The method effectively utilizes a two-force couple system for controlled rotation.
• Successful correction of localized tooth rotations is demonstrated.

Conclusions:

• The described closed coil technique offers a practical solution for localized tooth rotations.
• This method aligns with biomechanical principles for efficient and controlled tooth movement.
• It is particularly useful during the early stages of orthodontic alignment.