This review of the clinical and radiographic findings of orthodontic force application on the dental pulp included 26 studies. While increase in pulpal sensibility clinical response, an immediate decrease in pulpal blood flow, changes in pulp cavity volume, and an increase in the incidence of pulp stone formation the studies were mostly small and of low quality so the certainty of the available evidence is graded as very low.
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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 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…]
