Orthodontics: How much force is needed to move teeth with fixed appliances?

iStock_000002259334XSmall braces on teeth

This review looking at the optimal force magnitude for achieving orthodontic tooth movement included 12 studies suggesting there is weak to moderate evidence showing that forces ranging between 50 cN and 100 cN are optimal for the rate of orthodontic tooth movement.

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Orthodontic tooth movement and its effect on the dental pulp

iStock_000002551343XSmall colourful braces on teeth

Orthodontic treatment is based on the principle that if a force is applied to a tooth for a period of time it will move. The applied force produces changes in both the supporting structures and in the pulp of the tooth.  Pathological changes have been reported in the pulp in response to these forces so [read the full story…]