Biomechanics laboratory

Moment in orthodontics

Educational 2D model
Moment per tooth800 gf·mm
M = F × d100 gf × 8.0 mm
Simulated inclination5.6°
Two incisors and a horizontal orthodontic chainThe teeth translate and incline according to the force and the chain's distance from the center of resistance.
Center of resistance Initial position Parallel chain
Resulting responseMarked inclination
Educational translation predominance
33%